<HTML>
<HEAD>
<TITLE>sv8</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 12pt">As
filed with the Securities and Exchange Commission on January&nbsp;24, 2011</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 0pt">Registration No.&nbsp;333-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</DIV>


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt; margin-top: 3pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, DC 20549</B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>REGISTRATION STATEMENT<BR>
<i>Under<BR>
The Securities Act of 1933</i></B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>GAIN CAPITAL HOLDINGS, INC.</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact Name of Registrant as Specified in Its Charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>20-4568600</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or Other Jurisdiction of <BR>
Incorporation or Organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(I.R.S. Employer<BR>
Identification No.)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><B>Bedminster One, 135 Route 202/206, Bedminster, New Jersey</B><BR>
(Address of Principal Executive Offices)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>07921</B><BR>
(Zip Code)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>GAIN Capital Holdings, Inc.<BR>
2010 Omnibus Incentive Compensation Plan<BR>
2011 Employee Stock Purchase Plan</B></DIV>

<DIV align="center" style="font-size: 10pt">(Full Title of the Plan)</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Glenn H. Stevens<BR>
President and Chief Executive Officer<BR>
GAIN Capital Holdings, Inc.<BR>
Bedminster One<BR>
135 Route 202/206<BR>
Bedminster, New Jersey 07921</B><BR>
(Name and Address of Agent For Service)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>(908)&nbsp;731-0700</B><BR>
(Telephone Number, Including Area Code, of Agent For Service)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B><I>Copies of all communications, including all communications sent to the agent for service, should be<BR>
sent to:</I></B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Andrew P. Gilbert, Esq.<BR>
DLA Piper LLP (US)<BR>
300 Campus Drive, Suite&nbsp;100<BR>
Florham Park, New Jersey 07932<BR>
(973)&nbsp;520-2553</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate by check mark whether the registrant is a large accelerated filer, an
accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of
&#147;large accelerated filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148; in Rule&nbsp;12b-2 of the
Exchange Act.</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top" nowrap><B>Large accelerated filer </B><FONT style="font-family: Wingdings">&#111;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap><B>Accelerated filer </B><FONT style="font-family: Wingdings">&#111;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap><B>Non-accelerated filer </B><FONT style="font-family: Wingdings">&#254;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap><B>Smaller reporting company </B><FONT style="font-family: Wingdings">&#111;</FONT></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap"><B>(Do not check if a smaller reporting company)</B></FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CALCULATION OF REGISTRATION FEE</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="1%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Proposed Maximum</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Proposed Maximum</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center">Title of Securities</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Amount to be</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Offering Price Per</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Aggregate Offering</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Amount of</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center">to be Registered</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Registered<SUP style="FONT-size: 85%; vertical-align: text-top">(1)</SUP></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Share</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Price<SUP style="FONT-size: 85%; vertical-align: text-top">(2)</SUP></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Registration Fee</TD>
    <TD width="1%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock,
$0.00001 par value per share, to be issued pursuant to prior stock option awards
under the 2010 Omnibus Incentive Compensation Plan</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD colspan="3" align="center" style="border-top: 2px solid #000000" nowrap>4,647,352 shares</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">2.33</TD>
    <TD nowrap style="border-top: 2px solid #000000"><SUP style="FONT-size: 85%; vertical-align: text-top"> (3)</SUP></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">10,828,330</TD>
    <TD nowrap style="border-top: 2px solid #000000"><SUP style="FONT-size: 85%; vertical-align: text-top">(3)</SUP></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">1,258</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock,
$0.00001 par value per share, to be issued pursuant to prior restricted stock unit awards
under the 2010 Omnibus Incentive Compensation Plan</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD colspan="3" align="center" style="border-top: 2px solid #000000" nowrap>1,865,439 shares</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">9.60</TD>
    <TD nowrap style="border-top: 2px solid #000000"><SUP style="FONT-size: 85%; vertical-align: text-top">(2)</SUP></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">17,908,214</TD>
    <TD nowrap style="border-top: 2px solid #000000"><SUP style="FONT-size: 85%; vertical-align: text-top">(2)</SUP></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">2,080</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock,
$0.00001 par value
per share, to be
issued pursuant to
future awards and
grants under the
2010 Omnibus
Incentive
Compensation Plan</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD colspan="3" align="center" style="border-top: 2px solid #000000">1,400,000 shares</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">9.60</TD>
    <TD nowrap style="border-top: 2px solid #000000"><SUP style="FONT-size: 85%; vertical-align: text-top">(2)</SUP></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">13,440,000</TD>
    <TD nowrap style="border-top: 2px solid #000000"><SUP style="FONT-size: 85%; vertical-align: text-top">(2)</SUP></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">1,561</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock,
$0.00001 par value per share to be issued pursuant to the 2011 Employee Stock Purchase Plan</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD colspan="3" align="center" style="border-top: 2px solid #000000">500,000 shares</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">9.60</TD>
    <TD nowrap style="border-top: 2px solid #000000"><SUP style="FONT-size: 85%; vertical-align: text-top">(2)</SUP></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">4,800,000</TD>
    <TD nowrap style="border-top: 2px solid #000000"><SUP style="FONT-size: 85%; vertical-align: text-top">(2)</SUP></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">558</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Total</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD colspan="3" align="right" style="border-top: 2px solid #000000">8,412,791 shares</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
   <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD style="border-top: 2px solid #000000">5,457</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="center" colspan="23" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 3pt; width: 18%; border-top: 0px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Pursuant to Rule&nbsp;416 of the Securities Act of 1933, as amended, this registration statement
shall also cover any additional shares of common stock which become issuable under the GAIN
Capital Holdings, Inc. 2010 Omnibus Incentive Compensation Plan or the GAIN Capital Holdings,
Inc. 2011 Employee Stock Purchase Plan, by reason of any stock dividend, stock split,
recapitalization or other similar transaction or to cover such additional shares as may
hereinafter be offered or issued to prevent dilution resulting from stock splits, stock
dividends, recapitalizations or certain other capital adjustments, effected without the
receipt of consideration by GAIN Capital Holdings, Inc., which results in an increase in the
number of the outstanding shares of common stock of GAIN Capital Holdings, Inc. This
registration statement also relates to an indeterminate amount of interests in the GAIN
Capital Holdings, Inc. Employee Stock Purchase Plan.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Estimated solely for the purposes of calculating the registration fee pursuant to Rules
457(c) and 457(h) of the Securities Act of 1933, as amended, and based upon the average of the
reported high and low sales prices per share of the common stock of GAIN Capital Holdings,
Inc. on January 20,
2010, as reported by the New York Stock Exchange. Pursuant to Rule&nbsp;457(h)(2) of the Securities
Act of 1933, as amended, no separate registration fee is required with respect to the plan
interests.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(3)</TD>
    <TD>&nbsp;</TD>
    <TD>Calculated solely for purposes of this offering under Rule 457(h) of the Securities Act of
1933, as amended. The price per share and aggregate offering price are calculated on the basis
of $2.33, the weighted average exercise price of the 4,647,352 shares subject to outstanding
stock option grants under the 2010 Omnibus Incentive Compensation Plan.</TD>
</TR>
</TABLE>

<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio --><!-- /Folio -->
</DIV>



<!-- PAGEBREAK -->
<P><HR noshade><P>
<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="76%"></TD>
</TR>
<TR><TD colspan="9"><A HREF="#000">PART I</A></TD></TR>
<TR><TD colspan="9"><A HREF="#001">PART II</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;3. Incorporation of Documents by Reference</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;4. Description of Securities</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;5. Interests of Named Experts and Counsel</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;6. Indemnification of Directors and Officers</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;7. Exemption from Registration Claimed</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;8. Exhibits</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#008">Item&nbsp;9. Undertakings</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#010">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="y81307exv5w1.htm">EX-5.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="y81307exv23w1.htm">EX-23.1</A></TD></TR>
</TABLE>
</CENTER>
<!-- /TOC -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<!-- link1 "PART I" -->
<DIV align="left"><A NAME="000"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART I</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Information Required in the Section 10(a) Prospectus</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As permitted by the rules of the Securities and Exchange Commission, referred to herein as the
Commission, under the Securities Act of 1933, as amended, this Registration Statement on Form S-8
omits the information specified in Part&nbsp;I of Form S-8.
</DIV>
<!-- link1 "PART II" -->
<DIV align="left"><A NAME="001"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Information Required in the Registration Statement</B>
</DIV>

<!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference" -->
<DIV align="left"><A NAME="002"></A></DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Item&nbsp;3. <U>Incorporation of Documents by Reference</U>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;GAIN Capital Holdings, Inc. (the &#147;Registrant&#148;) hereby incorporates by reference into this
Registration Statement on Form S-8 (the &#147;Registration Statement&#148;) the following documents
previously filed with the Securities and Exchange Commission (the &#147;Commission&#148;):
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s prospectus filed pursuant to Rule&nbsp;424(b)(4) under the
Securities Act on December&nbsp;15, 2010 relating to the registration statement on Form
S-1, as amended (File No.&nbsp;333-161632), which contains the Registrant&#146;s audited
financial statements for the latest fiscal year for which such statements have been
filed; and</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The description of the Registrant&#146;s outstanding common stock contained in the
Registrant&#146;s registration statement on Form 8-A filed with the Commission on December
14, 2010, including any amendment or report filed for the purpose of updating the
description.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All reports and definitive proxy or information statements filed pursuant to Section&nbsp;13(a),
13(c), 14 and 15(d) of the Exchange Act after the date of this Registration Statement and prior to
the filing of a post-effective amendment which indicates that all securities offered hereby have
been sold or which de-registers all securities then remaining unsold, shall be deemed to be
incorporated by reference into this Registration Statement and to be a part hereof from the date of
filing of such documents. Unless expressly incorporated into this Registration Statement, a report
furnished on Form 8-K under the Exchange Act shall not be incorporated by reference into this
Registration Statement. Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded for purposes of this
Registration Statement to the extent that a statement contained herein or in any subsequently filed
document which also is deemed to be incorporated by reference herein modifies or supersedes such
statement. Any such statement so modified or superseded shall not be deemed, except as so modified
or superseded, to constitute a part of this Registration Statement.
</DIV>

<!-- link2 "Item&nbsp;4. Description of Securities" -->
<DIV align="left"><A NAME="003"></A></DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Item&nbsp;4. <U>Description of Securities</U>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>

<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel" -->
<DIV align="left"><A NAME="004"></A></DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Item&nbsp;5. <U>Interests of Named Experts and Counsel</U>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>

<!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers" -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Item&nbsp;6. <U>Indemnification of Directors and Officers</U>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;102 of the General Corporation Law of the State of Delaware permits a corporation to
eliminate the personal liability of directors of a corporation to the corporation or its
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->1<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">stockholders for monetary damages for a breach of fiduciary duty as a director, except where
the director breached his duty of loyalty, failed to act in good faith, engaged in intentional
misconduct or knowingly violated a law, authorized the payment of a dividend or approved a stock
repurchase in violation of Delaware corporate law or obtained an improper personal benefit. Our
certificate of incorporation provides that no director shall be personally liable to us or our
stockholders for monetary damages for any breach of fiduciary duty as a director, notwithstanding
any provision of law imposing such liability, except to the extent that the General Corporation Law
of the State of Delaware prohibits the elimination or limitation of liability of directors for
breaches of fiduciary duty.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145 of the General Corporation Law of the State of Delaware provides that a
corporation has the power to indemnify a director, officer, employee, or agent of the corporation
and certain other persons serving at the request of the corporation in related capacities against
expenses (including attorneys&#146; fees), judgments, fines and amounts paid in settlements actually and
reasonably incurred by the person in connection with an action, suit or proceeding to which he or
she is or is threatened to be made a party by reason of such position, if such person acted in good
faith and in a manner he or she reasonably believed to be in or not opposed to the best interests
of the corporation, and, in any criminal action or proceeding, had no reasonable cause to believe
his or her conduct was unlawful, except that, in the case of actions brought by or in the right of
the corporation, no indemnification shall be made with respect to any claim, issue or matter as to
which such person shall have been adjudged to be liable to the corporation unless and only to the
extent that the Court of Chancery or other adjudicating court determines that, despite the
adjudication of liability but in view of all of the circumstances of the case, such person is
fairly and reasonably entitled to indemnity for such expenses which the Court of Chancery or such
other court shall deem proper.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our certificate of incorporation provides that we will indemnify each person who was or is a
party or threatened to be made a party to any threatened, pending or completed action, suit or
proceeding (other than an action by or in the right of us) by reason of the fact that he or she is
or was, or has agreed to become, our director or officer, or is or was serving, or has agreed to
serve, at our request as a director, officer, partner, employee or trustee of, or in a similar
capacity with, another corporation, partnership, joint venture, trust or other enterprise (all such
persons being referred to as an &#147;Indemnitee&#148;), or by reason of any action alleged to have been
taken or omitted in such capacity, against all expenses (including attorneys&#146; fees), judgments,
fines and amounts paid in settlement actually and reasonably incurred in connection with such
action, suit or proceeding and any appeal therefrom, if such Indemnitee acted in good faith and in
a manner he or she reasonably believed to be in, or not opposed to, our best interests, and, with
respect to any criminal action or proceeding, he or she had no reasonable cause to believe his or
her conduct was unlawful. Our certificate of incorporation provides that we will indemnify any
Indemnitee who was or is a party to an action or suit by or in the right of us to procure a
judgment in our favor by reason of the fact that the Indemnitee is or was, or has agreed to become,
our director or officer, or is or was serving, or has agreed to serve, at our request as a
director, officer, partner, employee or trustee of, or in a similar capacity with, another
corporation, partnership, joint venture, trust or other enterprise, or by reason of any action
alleged to have been taken or omitted in such capacity, against all expenses (including attorneys&#146;
fees) and, to the extent permitted by law, amounts paid in settlement actually and reasonably
incurred in connection with such action, suit or proceeding, and any appeal therefrom, if the
Indemnitee acted in good faith and in a manner he or she reasonably believed to be in, or not
opposed to, our best interests, except that no indemnification shall be made with respect to any
claim, issue or matter as to which such person shall have been adjudged to be liable to us, unless
a court determines that, despite such
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio --> - 2 - <!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">adjudication but in view of all of the circumstances, he or she is entitled to indemnification
of such expenses. Notwithstanding the foregoing, to the extent that any Indemnitee has been
successful, on the merits or otherwise, he or she will be indemnified by us against all expenses
(including attorneys&#146; fees) actually and reasonably incurred in connection therewith. Expenses must
be advanced to an Indemnitee under certain circumstances.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In addition to the indemnification provided for in our certificate of incorporation, we have
entered into separate indemnification agreements with each of our directors and executive officers
which may be broader than the specific indemnification provisions contained in the Delaware General
Corporation Law prior to completion of this offering. These indemnification agreements require us,
among other things, to indemnify our directors and executive officers for some expenses, including
attorneys&#146; fees, judgments, fines and settlement amounts incurred by a director or executive
officer in any action or proceeding arising out of his service as one of our directors or executive
officers, or any of our subsidiaries or any other company or enterprise to which the person
provides services at our request. We believe that these provisions and agreements are necessary to
attract and retain qualified individuals to serve as directors and executive officers.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We carry insurance policies insuring our directors and officers against certain liabilities
that they may incur in their capacity as directors and officers.
</DIV>
<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed" -->
<DIV align="left"><A NAME="006"></A></DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Item&nbsp;7. <U>Exemption from Registration Claimed</U>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
<!-- link2 "Item&nbsp;8. Exhibits" -->
<DIV align="left"><A NAME="007"></A></DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Item&nbsp;8. <U>Exhibits</U>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="6%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="92%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left">Exhibit</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Number</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Exhibit</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">3.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Third Amended and Restated Certificate of Incorporation of the Registrant
(Incorporated by reference to Exhibit&nbsp;3.3 of the Registrant&#146;s Registration
Statement on Form&nbsp;S-1, No.&nbsp;333-161632).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">3.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Bylaws of the Registrant (Incorporated by reference to
Exhibit&nbsp;3.2 of the Registrant&#146;s Registration Statement on Form&nbsp;S-1, No.
333-161632).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">GAIN Capital Holdings, Inc. 2010 Omnibus Incentive Compensation Plan (Incorporated
by reference to Exhibit&nbsp;10.2 of the Registrant&#146;s Registration Statement on Form
S-1, No.&nbsp;333-161632).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">GAIN Capital Holdings, Inc. 2011 Employee Stock Purchase Plan (Incorporated by
reference to Exhibit&nbsp;10.3 of the Registrant&#146;s Registration Statement on Form&nbsp;S-1,
No.&nbsp;333-161632)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of DLA Piper LLP (US), counsel to Registrant.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Deloitte &#038; Touche LLP.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of DLA Piper LLP (US) (included in Exhibit&nbsp;5.1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (included on the signature pages of this Registration Statement).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio --> - 3 - <!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link2 "Item&nbsp;9. Undertakings" -->
<DIV align="left"><A NAME="008"></A></DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Item&nbsp;9. <U>Undertakings</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">A. The undersigned Registrant hereby undertakes:
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>to file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">(i)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>to include any prospectus required by Section&nbsp;10(a)(3) of the
Securities Act of 1933, as amended (the &#147;Securities Act&#148;),</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">(ii)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>to reflect in the prospectus any facts or events arising
after the effective date of this Registration Statement (or the most recent
post-effective amendment thereof) which, individually or in the aggregate,
represent a fundamental change in the information set forth in this
Registration Statement. Notwithstanding the foregoing, any increase or
decrease in volume of securities offered (if the total dollar value of
securities offered would not exceed that which was registered) and any
deviation from the low or high end of the estimated maximum offering range may
be reflected in the form of prospectus filed with the Commission pursuant to
Rule 424(b) if, in the aggregate, the changes in volume and price represent no
more than 20&nbsp;percent change in the maximum aggregate offering price set forth
in the &#147;Calculation of Registration Fee&#148; table in the effective registration
statement.</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">(iii)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>to include any material information with respect to the plan
of distribution not previously disclosed in this Registration Statement or any
material change to such information in this Registration Statement;</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>provided, however, that clauses (1)(i) and (1)(ii) shall not apply if the
information required to be included in a post-effective amendment by those clauses
is contained in periodic reports filed with or furnished to the Commission by the
Registrant pursuant to Section&nbsp;13 or Section 15(d) of the Exchange Act that are
incorporated by reference into this Registration Statement;</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>that for the purpose of determining any liability under the Securities Act,
each such post-effective amendment shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities at
that time shall be deemed to be the initial bona fide offering thereof; and</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>to remove from registration by means of a post-effective amendment any of the
securities being registered which remain unsold at the termination of the Offering.</TD>
</TR>

</TABLE>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">B. The undersigned Registrant hereby undertakes that, for purposes of determining any liability
under the Securities Act, each filing of the Registrant&#146;s annual report pursuant to Section 13(a)
or Section 15(d) of the Exchange Act that is incorporated by reference into this Registration
Statement shall be deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.
</DIV>





<P align="center" style="font-size: 10pt"><!-- Folio --> - 4 - <!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">C. Insofar as indemnification for liabilities arising under the Securities Act may be permitted to
directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions
or otherwise, the Registrant has been advised that, in the opinion of the Commission, such
indemnification is against public policy as expressed in the Securities Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such liabilities (other than
the payment by the Registrant of expenses incurred or paid by a director, officer, or controlling
person of the Registrant in the successful defense of any action, suit or proceeding) is asserted
by such director, officer or controlling person in connection with the securities being registered,
the Registrant will, unless in the opinion of its counsel the matter has been settled by
controlling precedent, submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities Act and will be
governed by the final adjudication of such issue.
</DIV>





<P align="center" style="font-size: 10pt"><!-- Folio --> - 5 - <!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="009"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act, the Registrant certifies that it has
reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has
duly caused this registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Bedminster, State of New Jersey, on
this 24<sup>th</sup> day of January,
2011.
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">GAIN Capital Holdings, Inc.
</DIV>


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD align="left">&nbsp;</TD>
    <TD colspan="3" style="border-bottom: 1px solid #000000" align="left">
/s/&nbsp;Glenn H. Stevens</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD colspan="3" align="left">Glenn H. Stevens&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD colspan="3" align="left">President and Chief Executive Officer<br>
(Principal Executive Officer)&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, the administrator of
the GAIN Capital Holdings, Inc. Employee Stock Purchase Plan has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of
Bedminster, State of New Jersey, on the 24<sup>th</sup> day of January, 2011.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">GAIN Capital Holdings, Inc. Employee Stock <BR>
Purchase Plan<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>

<TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/&nbsp;Susanne
Lyons</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Susanne Lyons&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Chairman of the Compensation Committee&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
</TABLE>


<P align="center" style="font-size: 10pt"><!-- Folio --> - 6 - <!-- /Folio -->
</DIV>



<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>POWER OF ATTORNEY AND SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We, the undersigned officers and directors of GAIN Capital Holdings, Inc., hereby severally
constitute and appoint Glenn H. Stevens and Henry C. Lyons, our true and lawful attorneys, with
full power to each of them singly, to sign for us and in our names in the capacities indicated
below, the registration statement on Form S-8 filed herewith and any and all subsequent amendments
to said registration statement, and generally to do all such things in our names and on our behalf
in our capacities as officers and directors to enable GAIN Capital Holdings, Inc. to comply with
the provisions of the Securities Act, and all requirements of the Securities and Exchange
Commission, hereby ratifying and confirming our signatures as they may be signed by our said
attorneys, or any of them, to said registration statement and any and all amendments thereto.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act, this registration statement has been
signed by the following persons in the capacities and on the dates indicated.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="35%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="25%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Signature</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Title</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Date</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Glenn&nbsp;H. Stevens<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Glenn&nbsp;H. Stevens
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap>President, Chief Executive Officer and Director&nbsp;<br>(Principal
Executive Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">January&nbsp;24, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Henry&nbsp;C. Lyons<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Henry&nbsp;C. Lyons
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chief Financial Officer and Treasurer&nbsp;<br>(Principal
Financial Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">January&nbsp;24, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Daryl&nbsp;J. Carlough<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Daryl&nbsp;J. Carlough
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chief Accounting Officer&nbsp;<br>(Principal
Accounting Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">January&nbsp;24, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Peter Quick<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Peter Quick
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chairman of the Board of Directors</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">January&nbsp;24, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Mark&nbsp;E. Galant
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">January&nbsp;24, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Christopher&nbsp;W. Calhoun<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Christopher&nbsp;W. Calhoun
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">January&nbsp;24, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Susanne&nbsp;D. Lyons<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Susanne&nbsp;D. Lyons
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">January&nbsp;24, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;James&nbsp;C. Mills<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
James&nbsp;C. Mills
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">January&nbsp;24, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Joseph Schenk<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Joseph Schenk
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">January&nbsp;24, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Christopher&nbsp;S. Sugden<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Christopher&nbsp;S. Sugden
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">January&nbsp;24, 2011</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>







<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 18pt">SECURITIES AND EXCHANGE COMMISSION
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">WASHINGTON, DC
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">EXHIBITS
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">TO
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">FORM S-8
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">UNDER THE
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">SECURITIES ACT OF 1933
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">GAIN CAPITAL HOLDINGS, INC.
</DIV>







<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<!-- link1 "EXHIBIT INDEX" -->
<DIV align="left"><A NAME="010"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt">EXHIBIT INDEX
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="92%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center">Exhibit</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Number</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Exhibit</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">3.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Third Amended and Restated Certificate of Incorporation of the Registrant
(Incorporated by reference to Exhibit&nbsp;3.3 of the Registrant&#146;s Registration
Statement on Form&nbsp;S-1, No.&nbsp;333-161632).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">3.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Bylaws of the Registrant (Incorporated by reference to
Exhibit&nbsp;3.2 of the Registrant&#146;s Registration Statement on Form&nbsp;S-1, No.
333-161632).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">GAIN Capital Holdings, Inc. 2010 Omnibus Incentive Compensation Plan (Incorporated
by reference to Exhibit&nbsp;10.2 of the Registrant&#146;s Registration Statement on Form
S-1, No.&nbsp;333-161632).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">GAIN Capital Holdings, Inc. 2011 Employee Stock Purchase Plan (Incorporated by
reference to Exhibit&nbsp;10.3 of the Registrant&#146;s Registration Statement on Form&nbsp;S-1,
No.&nbsp;333-161632)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of DLA Piper LLP (US), counsel to Registrant.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Deloitte &#038; Touche LLP.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of DLA Piper LLP (US) (included in Exhibit&nbsp;5.1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (included on the signature pages of this Registration Statement).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>



</BODY>
</HTML>
[{"type": "S-8", "sequence": "1", "filename": "y81307sv8.htm", "description": "FORM S-8", "secsgml_size_bytes": 67714}]
{"company-data": {"conformed-name": "GAIN Capital Holdings, Inc.", "cik": "0001444363", "assigned-sic": "6221", "irs-number": "204568600", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-171841", "film-number": "11544351"}, "business-address": {"street1": "550 HILLS DRIVE", "city": "BEDMINSTER", "state": "NJ", "zip": "07921", "phone": "908-731-0700"}, "mail-address": {"street1": "550 HILLS DRIVE", "city": "BEDMINSTER", "state": "NJ", "zip": "07921"}}
sv8
Table of Contents
As
filed with the Securities and Exchange Commission on January 24, 2011
Registration No. 333-
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549
FORM S-8
REGISTRATION STATEMENT
Under
The Securities Act of 1933
GAIN CAPITAL HOLDINGS, INC.
(Exact Name of Registrant as Specified in Its Charter)
Delaware
20-4568600
(State or Other Jurisdiction of
Incorporation or Organization)
(I.R.S. Employer
Identification No.)
Bedminster One, 135 Route 202/206, Bedminster, New Jersey
(Address of Principal Executive Offices)
07921
(Zip Code)
GAIN Capital Holdings, Inc.
2010 Omnibus Incentive Compensation Plan
2011 Employee Stock Purchase Plan
(Full Title of the Plan)
Glenn H. Stevens
President and Chief Executive Officer
GAIN Capital Holdings, Inc.
Bedminster One
135 Route 202/206
Bedminster, New Jersey 07921
(Name and Address of Agent For Service)
(908) 731-0700
(Telephone Number, Including Area Code, of Agent For Service)
Copies of all communications, including all communications sent to the agent for service, should be
sent to:
Andrew P. Gilbert, Esq.
DLA Piper LLP (US)
300 Campus Drive, Suite 100
Florham Park, New Jersey 07932
(973) 520-2553
Indicate by check mark whether the registrant is a large accelerated filer, an
accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of
"large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the
Exchange Act.
Large accelerated filer
o
Accelerated filer
o
Non-accelerated filer
þ
Smaller reporting company
o
(Do not check if a smaller reporting company)
CALCULATION OF REGISTRATION FEE
Proposed Maximum
Proposed Maximum
Title of Securities
Amount to be
Offering Price Per
Aggregate Offering
Amount of
to be Registered
Registered
(1)
Share
Price
(2)
Registration Fee
Common Stock,
$0.00001 par value per share, to be issued pursuant to prior stock option awards
under the 2010 Omnibus Incentive Compensation Plan
4,647,352 shares
$
2.33
(3)
$
10,828,330
(3)
$
1,258
Common Stock,
$0.00001 par value per share, to be issued pursuant to prior restricted stock unit awards
under the 2010 Omnibus Incentive Compensation Plan
1,865,439 shares
$
9.60
(2)
$
17,908,214
(2)
$
2,080
Common Stock,
$0.00001 par value
per share, to be
issued pursuant to
future awards and
grants under the
2010 Omnibus
Incentive
Compensation Plan
1,400,000 shares
$
9.60
(2)
$
13,440,000
(2)
$
1,561
Common Stock,
$0.00001 par value per share to be issued pursuant to the 2011 Employee Stock Purchase Plan
500,000 shares
$
9.60
(2)
$
4,800,000
(2)
$
558
Total
8,412,791 shares
$
5,457
(1)
Pursuant to Rule 416 of the Securities Act of 1933, as amended, this registration statement
shall also cover any additional shares of common stock which become issuable under the GAIN
Capital Holdings, Inc. 2010 Omnibus Incentive Compensation Plan or the GAIN Capital Holdings,
Inc. 2011 Employee Stock Purchase Plan, by reason of any stock dividend, stock split,
recapitalization or other similar transaction or to cover such additional shares as may
hereinafter be offered or issued to prevent dilution resulting from stock splits, stock
dividends, recapitalizations or certain other capital adjustments, effected without the
receipt of consideration by GAIN Capital Holdings, Inc., which results in an increase in the
number of the outstanding shares of common stock of GAIN Capital Holdings, Inc. This
registration statement also relates to an indeterminate amount of interests in the GAIN
Capital Holdings, Inc. Employee Stock Purchase Plan.
(2)
Estimated solely for the purposes of calculating the registration fee pursuant to Rules
457(c) and 457(h) of the Securities Act of 1933, as amended, and based upon the average of the
reported high and low sales prices per share of the common stock of GAIN Capital Holdings,
Inc. on January 20,
2010, as reported by the New York Stock Exchange. Pursuant to Rule 457(h)(2) of the Securities
Act of 1933, as amended, no separate registration fee is required with respect to the plan
interests.
(3)
Calculated solely for purposes of this offering under Rule 457(h) of the Securities Act of
1933, as amended. The price per share and aggregate offering price are calculated on the basis
of $2.33, the weighted average exercise price of the 4,647,352 shares subject to outstanding
stock option grants under the 2010 Omnibus Incentive Compensation Plan.
TABLE OF CONTENTS
PART I
PART II
Item 3. Incorporation of Documents by Reference
Item 4. Description of Securities
Item 5. Interests of Named Experts and Counsel
Item 6. Indemnification of Directors and Officers
Item 7. Exemption from Registration Claimed
Item 8. Exhibits
Item 9. Undertakings
SIGNATURES
EXHIBIT INDEX
EX-5.1
EX-23.1
Table of Contents
PART I
Information Required in the Section 10(a) Prospectus
As permitted by the rules of the Securities and Exchange Commission, referred to herein as the
Commission, under the Securities Act of 1933, as amended, this Registration Statement on Form S-8
omits the information specified in Part I of Form S-8.
PART II
Information Required in the Registration Statement
Item 3.
Incorporation of Documents by Reference
GAIN Capital Holdings, Inc. (the "Registrant") hereby incorporates by reference into this
Registration Statement on Form S-8 (the "Registration Statement") the following documents
previously filed with the Securities and Exchange Commission (the "Commission"):
(a)
The Registrant's prospectus filed pursuant to Rule 424(b)(4) under the
Securities Act on December 15, 2010 relating to the registration statement on Form
S-1, as amended (File No. 333-161632), which contains the Registrant's audited
financial statements for the latest fiscal year for which such statements have been
filed; and
(b)
The description of the Registrant's outstanding common stock contained in the
Registrant's registration statement on Form 8-A filed with the Commission on December
14, 2010, including any amendment or report filed for the purpose of updating the
description.
All reports and definitive proxy or information statements filed pursuant to Section 13(a),
13(c), 14 and 15(d) of the Exchange Act after the date of this Registration Statement and prior to
the filing of a post-effective amendment which indicates that all securities offered hereby have
been sold or which de-registers all securities then remaining unsold, shall be deemed to be
incorporated by reference into this Registration Statement and to be a part hereof from the date of
filing of such documents. Unless expressly incorporated into this Registration Statement, a report
furnished on Form 8-K under the Exchange Act shall not be incorporated by reference into this
Registration Statement. Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded for purposes of this
Registration Statement to the extent that a statement contained herein or in any subsequently filed
document which also is deemed to be incorporated by reference herein modifies or supersedes such
statement. Any such statement so modified or superseded shall not be deemed, except as so modified
or superseded, to constitute a part of this Registration Statement.
Item 4.
Description of Securities
Not applicable.
Item 5.
Interests of Named Experts and Counsel
Not applicable.
Item 6.
Indemnification of Directors and Officers
Section 102 of the General Corporation Law of the State of Delaware permits a corporation to
eliminate the personal liability of directors of a corporation to the corporation or its
1
Table of Contents
stockholders for monetary damages for a breach of fiduciary duty as a director, except where
the director breached his duty of loyalty, failed to act in good faith, engaged in intentional
misconduct or knowingly violated a law, authorized the payment of a dividend or approved a stock
repurchase in violation of Delaware corporate law or obtained an improper personal benefit. Our
certificate of incorporation provides that no director shall be personally liable to us or our
stockholders for monetary damages for any breach of fiduciary duty as a director, notwithstanding
any provision of law imposing such liability, except to the extent that the General Corporation Law
of the State of Delaware prohibits the elimination or limitation of liability of directors for
breaches of fiduciary duty.
Section 145 of the General Corporation Law of the State of Delaware provides that a
corporation has the power to indemnify a director, officer, employee, or agent of the corporation
and certain other persons serving at the request of the corporation in related capacities against
expenses (including attorneys' fees), judgments, fines and amounts paid in settlements actually and
reasonably incurred by the person in connection with an action, suit or proceeding to which he or
she is or is threatened to be made a party by reason of such position, if such person acted in good
faith and in a manner he or she reasonably believed to be in or not opposed to the best interests
of the corporation, and, in any criminal action or proceeding, had no reasonable cause to believe
his or her conduct was unlawful, except that, in the case of actions brought by or in the right of
the corporation, no indemnification shall be made with respect to any claim, issue or matter as to
which such person shall have been adjudged to be liable to the corporation unless and only to the
extent that the Court of Chancery or other adjudicating court determines that, despite the
adjudication of liability but in view of all of the circumstances of the case, such person is
fairly and reasonably entitled to indemnity for such expenses which the Court of Chancery or such
other court shall deem proper.
Our certificate of incorporation provides that we will indemnify each person who was or is a
party or threatened to be made a party to any threatened, pending or completed action, suit or
proceeding (other than an action by or in the right of us) by reason of the fact that he or she is
or was, or has agreed to become, our director or officer, or is or was serving, or has agreed to
serve, at our request as a director, officer, partner, employee or trustee of, or in a similar
capacity with, another corporation, partnership, joint venture, trust or other enterprise (all such
persons being referred to as an "Indemnitee"), or by reason of any action alleged to have been
taken or omitted in such capacity, against all expenses (including attorneys' fees), judgments,
fines and amounts paid in settlement actually and reasonably incurred in connection with such
action, suit or proceeding and any appeal therefrom, if such Indemnitee acted in good faith and in
a manner he or she reasonably believed to be in, or not opposed to, our best interests, and, with
respect to any criminal action or proceeding, he or she had no reasonable cause to believe his or
her conduct was unlawful. Our certificate of incorporation provides that we will indemnify any
Indemnitee who was or is a party to an action or suit by or in the right of us to procure a
judgment in our favor by reason of the fact that the Indemnitee is or was, or has agreed to become,
our director or officer, or is or was serving, or has agreed to serve, at our request as a
director, officer, partner, employee or trustee of, or in a similar capacity with, another
corporation, partnership, joint venture, trust or other enterprise, or by reason of any action
alleged to have been taken or omitted in such capacity, against all expenses (including attorneys'
fees) and, to the extent permitted by law, amounts paid in settlement actually and reasonably
incurred in connection with such action, suit or proceeding, and any appeal therefrom, if the
Indemnitee acted in good faith and in a manner he or she reasonably believed to be in, or not
opposed to, our best interests, except that no indemnification shall be made with respect to any
claim, issue or matter as to which such person shall have been adjudged to be liable to us, unless
a court determines that, despite such
- 2 -
Table of Contents
adjudication but in view of all of the circumstances, he or she is entitled to indemnification
of such expenses. Notwithstanding the foregoing, to the extent that any Indemnitee has been
successful, on the merits or otherwise, he or she will be indemnified by us against all expenses
(including attorneys' fees) actually and reasonably incurred in connection therewith. Expenses must
be advanced to an Indemnitee under certain circumstances.
In addition to the indemnification provided for in our certificate of incorporation, we have
entered into separate indemnification agreements with each of our directors and executive officers
which may be broader than the specific indemnification provisions contained in the Delaware General
Corporation Law prior to completion of this offering. These indemnification agreements require us,
among other things, to indemnify our directors and executive officers for some expenses, including
attorneys' fees, judgments, fines and settlement amounts incurred by a director or executive
officer in any action or proceeding arising out of his service as one of our directors or executive
officers, or any of our subsidiaries or any other company or enterprise to which the person
provides services at our request. We believe that these provisions and agreements are necessary to
attract and retain qualified individuals to serve as directors and executive officers.
We carry insurance policies insuring our directors and officers against certain liabilities
that they may incur in their capacity as directors and officers.
Item 7.
Exemption from Registration Claimed
Not applicable.
Item 8.
Exhibits
Exhibit
Number
Exhibit
3.1
Third Amended and Restated Certificate of Incorporation of the Registrant
(Incorporated by reference to Exhibit 3.3 of the Registrant's Registration
Statement on Form S-1, No. 333-161632).
3.2
Amended and Restated Bylaws of the Registrant (Incorporated by reference to
Exhibit 3.2 of the Registrant's Registration Statement on Form S-1, No.
333-161632).
4.1
GAIN Capital Holdings, Inc. 2010 Omnibus Incentive Compensation Plan (Incorporated
by reference to Exhibit 10.2 of the Registrant's Registration Statement on Form
S-1, No. 333-161632).
4.2
GAIN Capital Holdings, Inc. 2011 Employee Stock Purchase Plan (Incorporated by
reference to Exhibit 10.3 of the Registrant's Registration Statement on Form S-1,
No. 333-161632)
5.1
Opinion of DLA Piper LLP (US), counsel to Registrant.
23.1
Consent of Deloitte & Touche LLP.
23.2
Consent of DLA Piper LLP (US) (included in Exhibit 5.1).
24.1
Power of Attorney (included on the signature pages of this Registration Statement).
- 3 -
Table of Contents
Item 9.
Undertakings
A. The undersigned Registrant hereby undertakes:
(1)
to file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:
(i)
to include any prospectus required by Section 10(a)(3) of the
Securities Act of 1933, as amended (the "Securities Act"),
(ii)
to reflect in the prospectus any facts or events arising
after the effective date of this Registration Statement (or the most recent
post-effective amendment thereof) which, individually or in the aggregate,
represent a fundamental change in the information set forth in this
Registration Statement. Notwithstanding the foregoing, any increase or
decrease in volume of securities offered (if the total dollar value of
securities offered would not exceed that which was registered) and any
deviation from the low or high end of the estimated maximum offering range may
be reflected in the form of prospectus filed with the Commission pursuant to
Rule 424(b) if, in the aggregate, the changes in volume and price represent no
more than 20 percent change in the maximum aggregate offering price set forth
in the "Calculation of Registration Fee" table in the effective registration
statement.
(iii)
to include any material information with respect to the plan
of distribution not previously disclosed in this Registration Statement or any
material change to such information in this Registration Statement;
provided, however, that clauses (1)(i) and (1)(ii) shall not apply if the
information required to be included in a post-effective amendment by those clauses
is contained in periodic reports filed with or furnished to the Commission by the
Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are
incorporated by reference into this Registration Statement;
(2)
that for the purpose of determining any liability under the Securities Act,
each such post-effective amendment shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities at
that time shall be deemed to be the initial bona fide offering thereof; and
(3)
to remove from registration by means of a post-effective amendment any of the
securities being registered which remain unsold at the termination of the Offering.
B. The undersigned Registrant hereby undertakes that, for purposes of determining any liability
under the Securities Act, each filing of the Registrant's annual report pursuant to Section 13(a)
or Section 15(d) of the Exchange Act that is incorporated by reference into this Registration
Statement shall be deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.
- 4 -
Table of Contents
C. Insofar as indemnification for liabilities arising under the Securities Act may be permitted to
directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions
or otherwise, the Registrant has been advised that, in the opinion of the Commission, such
indemnification is against public policy as expressed in the Securities Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such liabilities (other than
the payment by the Registrant of expenses incurred or paid by a director, officer, or controlling
person of the Registrant in the successful defense of any action, suit or proceeding) is asserted
by such director, officer or controlling person in connection with the securities being registered,
the Registrant will, unless in the opinion of its counsel the matter has been settled by
controlling precedent, submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities Act and will be
governed by the final adjudication of such issue.
- 5 -
Table of Contents
SIGNATURES
Pursuant to the requirements of the Securities Act, the Registrant certifies that it has
reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has
duly caused this registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Bedminster, State of New Jersey, on
this 24
th
day of January,
2011.
GAIN Capital Holdings, Inc.
/s/ Glenn H. Stevens
Glenn H. Stevens
President and Chief Executive Officer
(Principal Executive Officer)
Pursuant to the requirements of the Securities Act of 1933, as amended, the administrator of
the GAIN Capital Holdings, Inc. Employee Stock Purchase Plan has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of
Bedminster, State of New Jersey, on the 24
th
day of January, 2011.
GAIN Capital Holdings, Inc. Employee Stock
Purchase Plan
By:
/s/ Susanne
Lyons
Susanne Lyons
Chairman of the Compensation Committee
- 6 -
Table of Contents
POWER OF ATTORNEY AND SIGNATURES
We, the undersigned officers and directors of GAIN Capital Holdings, Inc., hereby severally
constitute and appoint Glenn H. Stevens and Henry C. Lyons, our true and lawful attorneys, with
full power to each of them singly, to sign for us and in our names in the capacities indicated
below, the registration statement on Form S-8 filed herewith and any and all subsequent amendments
to said registration statement, and generally to do all such things in our names and on our behalf
in our capacities as officers and directors to enable GAIN Capital Holdings, Inc. to comply with
the provisions of the Securities Act, and all requirements of the Securities and Exchange
Commission, hereby ratifying and confirming our signatures as they may be signed by our said
attorneys, or any of them, to said registration statement and any and all amendments thereto.
Pursuant to the requirements of the Securities Act, this registration statement has been
signed by the following persons in the capacities and on the dates indicated.
Signature
Title
Date
/s/ Glenn H. Stevens
Glenn H. Stevens
President, Chief Executive Officer and Director
(Principal
Executive Officer)
January 24, 2011
/s/ Henry C. Lyons
Henry C. Lyons
Chief Financial Officer and Treasurer
(Principal
Financial Officer)
January 24, 2011
/s/ Daryl J. Carlough
Daryl J. Carlough
Chief Accounting Officer
(Principal
Accounting Officer)
January 24, 2011
/s/ Peter Quick
Peter Quick
Chairman of the Board of Directors
January 24, 2011
Mark E. Galant
Director
January 24, 2011
/s/ Christopher W. Calhoun
Christopher W. Calhoun
Director
January 24, 2011
/s/ Susanne D. Lyons
Susanne D. Lyons
Director
January 24, 2011
/s/ James C. Mills
James C. Mills
Director
January 24, 2011
/s/ Joseph Schenk
Joseph Schenk
Director
January 24, 2011
/s/ Christopher S. Sugden
Christopher S. Sugden
Director
January 24, 2011
Table of Contents
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC
EXHIBITS
TO
FORM S-8
UNDER THE
SECURITIES ACT OF 1933
GAIN CAPITAL HOLDINGS, INC.
Table of Contents
EXHIBIT INDEX
Exhibit
Number
Exhibit
3.1
Third Amended and Restated Certificate of Incorporation of the Registrant
(Incorporated by reference to Exhibit 3.3 of the Registrant's Registration
Statement on Form S-1, No. 333-161632).
3.2
Amended and Restated Bylaws of the Registrant (Incorporated by reference to
Exhibit 3.2 of the Registrant's Registration Statement on Form S-1, No.
333-161632).
4.1
GAIN Capital Holdings, Inc. 2010 Omnibus Incentive Compensation Plan (Incorporated
by reference to Exhibit 10.2 of the Registrant's Registration Statement on Form
S-1, No. 333-161632).
4.2
GAIN Capital Holdings, Inc. 2011 Employee Stock Purchase Plan (Incorporated by
reference to Exhibit 10.3 of the Registrant's Registration Statement on Form S-1,
No. 333-161632)
5.1
Opinion of DLA Piper LLP (US), counsel to Registrant.
23.1
Consent of Deloitte & Touche LLP.
23.2
Consent of DLA Piper LLP (US) (included in Exhibit 5.1).
24.1
Power of Attorney (included on the signature pages of this Registration Statement).