<PAGE>

================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported) October 24, 2005


                        Financial Asset Securities Corp.
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

          Delaware                 333-127352-01              06-1442101
----------------------------       -------------       -------------------------
(State or Other Jurisdiction        (Commission          (I.R.S. Employer
     of Incorporation)              File Number)        Identification No.)

     600 Steamboat Road
   Greenwich, Connecticut                                        06830
----------------------------                           -------------------------
   (Address of Principal                                      (Zip Code)
     Executive Offices)

================================================================================

<PAGE>
Registrant's telephone number, including area code:  (203) 625-2700

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ]   Written communications pursuant to Rule 425 under the Securities
      Act (17 CFR 230.425)

[ ]   Soliciting material pursuant to Rule 14a-12(b) under the Exchange
      Act (17 CFR 240.14a-12(b))

[ ]   Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

[ ]   Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))

<PAGE>

Item 8.01      Other Events

Description of the Certificates and the Mortgage Pool

     Financial Asset Securities Corp. (the "Registrant") plans a series of
certificates, entitled Soundview Home Loan Trust 2005-OPT4, Asset-Backed
Certificates, Series 2005-OPT4 (the "Certificates"), to be issued pursuant to a
pooling and servicing agreement, dated as of November 1, 2005, among the
Registrant as depositor, Option One Mortgage Corporation as servicer and
Deutsche Bank National Trust Company, as trustee. The Certificates to be
designated as the Series 2005-OPT4 Certificates will represent in the aggregate
the entire beneficial ownership interest in a trust fund (the "Trust Fund")
consisting primarily of a pool (the "Mortgage Pool") of conventional, one- to
four-family, first lien and second lien adjustable-rate and fixed-rate
residential mortgage loans having original terms to maturity up to 30 years (the
"Mortgage Loans").

Computational Materials

     Greenwich Capital Markets, Inc. (the "Underwriter") has advised the
Registrant that it has furnished to certain prospective purchasers of
Certificates certain materials, herein referred to as "Computational Materials",
in written form, which Computational Materials are in the nature of data tables
and term sheet information relating to the Mortgage Loans or other assets of the
Trust Fund, the structure of the Certificates and terms of certain classes of
Certificates, and the hypothetical characteristics and hypothetical performance
of certain classes of Certificates under certain assumptions and scenarios.

     The Computational Materials have been provided by the Underwriter.

     The Computational Materials were prepared by the Underwriter at the request
of certain prospective investors. The Computational Materials may be based on
information that differs from the information set forth in the Prospectus
Supplement.
                                        3
<PAGE>

Item 9.01      Financial Statements and Exhibits

                         (a)      Not applicable

                         (b)      Not applicable

                         (c)      Exhibits

         Exhibit No.                             Description
         -----------         --------------------------------------------------
         99.1                Computational Materials (as defined in Item 5)
                             that have been provided by Greenwich Capital
                             Markets, Inc. to certain prospective purchasers of
                             Soundview Home Loan Trust 2005-OPT4, Asset-Backed
                             Certificates, Series 2005-OPT4.

                                        4
<PAGE>

                                   SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

Dated: November 23, 2005

                                             FINANCIAL ASSET SECURITIES CORP.


                                             By:    /s/ Frank Skibo
                                                    ----------------------------
                                             Name:  Frank Skibo
                                             Title: Managing Director

                                        5
<PAGE>

                                Index to Exhibits

                                                                    Sequentially
Exhibit No.                       Description                      Numbered Page
-----------      -----------------------------------------------   -------------
   99.1          Computational Materials (as defined in Item 5)          P
                 that have been provided by Greenwich Capital
                 Markets, Inc. to certain prospective purchasers
                 of Soundview Home Loan Trust 2005-OPT4,
                 Asset-Backed Certificates, Series 2005-OPT4.

                                        6
[{"type": "8-K", "sequence": "1", "filename": "b409990_8k.txt", "description": "CURRENT REPORT", "secsgml_size_bytes": 6117}]
{"company-data": {"conformed-name": "FINANCIAL ASSET SECURITIES CORP", "cik": "0001003197", "assigned-sic": "6189", "irs-number": "061442101", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "333-99463", "film-number": "051223654"}, "business-address": {"street1": "600 STEAMBOAT ROAD", "city": "GREENWICH", "state": "CT", "zip": "92618", "phone": "2036252700"}, "mail-address": {"street1": "600 STEAMBOAT RD", "city": "GREENWICH", "state": "CT", "zip": "92618"}}
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported) October 24, 2005

                        Financial Asset Securities Corp.
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

          Delaware                 333-127352-01              06-1442101
----------------------------       -------------       -------------------------
(State or Other Jurisdiction        (Commission          (I.R.S. Employer
     of Incorporation)              File Number)        Identification No.)

     600 Steamboat Road
   Greenwich, Connecticut                                        06830
----------------------------                           -------------------------
   (Address of Principal                                      (Zip Code)
     Executive Offices)

================================================================================
Registrant's telephone number, including area code:  (203) 625-2700

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ]   Written communications pursuant to Rule 425 under the Securities
      Act (17 CFR 230.425)

[ ]   Soliciting material pursuant to Rule 14a-12(b) under the Exchange
      Act (17 CFR 240.14a-12(b))

[ ]   Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

[ ]   Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))
Item 8.01      Other Events

Description of the Certificates and the Mortgage Pool

     Financial Asset Securities Corp. (the "Registrant") plans a series of
certificates, entitled Soundview Home Loan Trust 2005-OPT4, Asset-Backed
Certificates, Series 2005-OPT4 (the "Certificates"), to be issued pursuant to a
pooling and servicing agreement, dated as of November 1, 2005, among the
Registrant as depositor, Option One Mortgage Corporation as servicer and
Deutsche Bank National Trust Company, as trustee. The Certificates to be
designated as the Series 2005-OPT4 Certificates will represent in the aggregate
the entire beneficial ownership interest in a trust fund (the "Trust Fund")
consisting primarily of a pool (the "Mortgage Pool") of conventional, one- to
four-family, first lien and second lien adjustable-rate and fixed-rate
residential mortgage loans having original terms to maturity up to 30 years (the
"Mortgage Loans").

Computational Materials

     Greenwich Capital Markets, Inc. (the "Underwriter") has advised the
Registrant that it has furnished to certain prospective purchasers of
Certificates certain materials, herein referred to as "Computational Materials",
in written form, which Computational Materials are in the nature of data tables
and term sheet information relating to the Mortgage Loans or other assets of the
Trust Fund, the structure of the Certificates and terms of certain classes of
Certificates, and the hypothetical characteristics and hypothetical performance
of certain classes of Certificates under certain assumptions and scenarios.

     The Computational Materials have been provided by the Underwriter.

     The Computational Materials were prepared by the Underwriter at the request
of certain prospective investors. The Computational Materials may be based on
information that differs from the information set forth in the Prospectus
Supplement.
                                        3
Item 9.01      Financial Statements and Exhibits

                         (a)      Not applicable

                         (b)      Not applicable

                         (c)      Exhibits

         Exhibit No.                             Description
         -----------         --------------------------------------------------
         99.1                Computational Materials (as defined in Item 5)
                             that have been provided by Greenwich Capital
                             Markets, Inc. to certain prospective purchasers of
                             Soundview Home Loan Trust 2005-OPT4, Asset-Backed
                             Certificates, Series 2005-OPT4.

                                        4
SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

Dated: November 23, 2005

                                             FINANCIAL ASSET SECURITIES CORP.

                                             By:    /s/ Frank Skibo
                                                    ----------------------------
                                             Name:  Frank Skibo
                                             Title: Managing Director

                                        5
Index to Exhibits

                                                                    Sequentially
Exhibit No.                       Description                      Numbered Page
-----------      -----------------------------------------------   -------------
   99.1          Computational Materials (as defined in Item 5)          P
                 that have been provided by Greenwich Capital
                 Markets, Inc. to certain prospective purchasers
                 of Soundview Home Loan Trust 2005-OPT4,
                 Asset-Backed Certificates, Series 2005-OPT4.

                                        6