<PAGE>

                                  UNITED STATES
                       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)
                               September 26, 2006

CHASE MORTGAGE FINANCE CORPORATION (as Depositor under the Pooling and Servicing
Agreement, dated as of September 1, 2006, providing for the issuance of Chase
Mortgage Finance Trust Multi-Class Mortgage Pass-Through Certificates, Series
2006-S2)

                   Chase Mortgage Finance Trust Series 2006-S2
                                (Issuing Entity)

                       Chase Mortgage Finance Corporation
                                   (Depositor)

                             Chase Home Finance LLC
                                    (Sponsor)

                       Chase Mortgage Finance Corporation
                                  (Registrant)

          Delaware                     333-130223                 52-1495132
(State or Other Jurisdiction          (Commission              (I.R.S. Employer
      Of Incorporation)               File Number)           Identification No.)

194 Wood Avenue South, 3rd Floor
       Iselin, New Jersey
(Address of Principal Executive                                     08830
            Offices)                                              (Zip Code)

     Registrant's telephone number, including area code: (732) 205-0600

                                    No Change
          (Former Name or Former Address, if Changed Since Last Report)

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:

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

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

[_]  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

     The Registrant registered issuances of Chase Mortgage Finance Trust Series
2006-S2 Multi-Class Mortgage Pass-Through Certificates on a delayed or
continuous basis pursuant to Rule 415 under the Securities Act of 1933, as
amended (the "Act"), by a Registration Statement on Form S-3 (Registration File
No. 333-130223 (the "Registration Statement")). Pursuant to the Registration
Statement, the Registrant issued $1,019,172,758 in aggregate principal amount
Class 1-A1, Class 1-A2, Class 1-A3, Class 1-A4, Class 1-A5, Class 1-A6, Class
1-A7, Class 1-A8, Class 1-A9, Class 1-A10, Class 1-A11, Class 1-A12, Class
1-A13, Class 1-A14, Class 1-A15, Class 1-A16, Class 1-A17, Class 1-A18, Class
1-A19, Class 1-AX, Class 2-A1, Class 2-A2, Class 2-A3, Class 2-A4, Class 2-A5,
Class 2-A6, Clas 2-A7, Class 2-A8, Class 2-A9, Class 2-AX, Class A-R, Class A-M,
Class M, Class B-1, Class B-2, Class B-3, Class B-4, and Class B-5 Certificates
of its Chase Mortgage Finance Trust Series 2006-A1 Multi-Class Mortgage
Pass-Through Certificates, Series 2006-S2 on September, 2006.

     This Current Report on Form 8-K is being filed to satisfy an undertaking,
contained in the definitive Prospectus, dated September 25, 2006, as
supplemented by the Prospectus Supplement, dated September 25, 2006
(collectively, the "Prospectus Supplement"), to file a copy of the Pooling and
Servicing Agreement (as defined below) executed in connection with the issuance
of the Certificates, a form of which was filed as an exhibit to the Registration
Statement.

     The Certificates (as defined below) were issued pursuant to a Pooling and
Servicing Agreement, attached hereto as Exhibit 4.1, dated as of September 1,
2006, among Chase Mortgage Finance Corporation, as depositor, JPMorgan Chase
Bank, N.A., as servicer and custodian, The Bank of New York, as trustee and
JPMorgan Chase Bank, N.A., as paying agent. The "Certificates" consist of the
following classes: Class A, Class M, and Class B. The Certificates evidence all
the beneficial ownership interest in a trust fund (the "Trust Fund") that
consists primarily of one pool of certain fixed rate, first lien residential
mortgage loans (the "Mortgage Loans") with an aggregate outstanding principal
balance of approximately $1,024,294,266 as of September 1, 2006. Capitalized
terms used herein and not otherwise defined shall have the meanings assigned to
them in the Pooling and Servicing Agreement.

     Item 9.01. Financial Statements and Exhibits

     (a)  Not applicable.

     (b)  Not applicable.

     (c)  Not applicable.

     (d)  Exhibits:

          4.1  Pooling and Servicing Agreement, dated as of September 1, 2006,
               among Chase Mortgage Finance Corporation, as Depositor, JPMorgan
               Chase Bank, N.A., as Servicer and Custodian, The Bank of New
               York, as Trustee and JPMorgan Chase Bank, N.A., as Paying Agent.

          99.1 Mortgage Loan Sale Agreement, dated as of September 1, 2006,
               among Chase Mortgage Finance Corporation, as Purchaser, and Chase
               Home Finance LLC, as Seller.

<PAGE>

          99.2 Mortgage Loan Sale Agreement, dated as of September 1, 2006,
               among Chase Mortgage Finance Corporation, as Purchaser, and J.P.
               Morgan Mortgage Acquisition Corp., as Seller.

<PAGE>

                                   SIGNATURES

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

                                             CHASE MORTGAGE FINANCE CORPORATION


                                             By: /s/ Bruce J. Friedman
                                                 -------------------------------
                                                 Name: Bruce J. Friedman
                                                 Title: Vice President

Dated: October 11, 2006

<PAGE>

                                  EXHIBIT INDEX

Exhibit No.   Description
-----------   -----------

4.1           Pooling and Servicing Agreement, dated as of September 1, 2006,
              among Chase Mortgage Finance Corporation, as Depositor, JPMorgan
              Chase Bank, N.A., as Servicer and Custodian, The Bank of New York,
              as Trustee and JPMorgan Chase Bank, N.A., as Paying Agent.

99.1          Mortgage Loan Sale Agreement, dated as of September 1, 2006, among
              Chase Mortgage Finance Corporation, as Purchaser, and Chase Home
              Finance LLC, as Seller.

99.2          Mortgage Loan Sale Agreement, dated as of September 1, 2006, among
              Chase Mortgage Finance Corporation, as Purchaser, and J.P. Morgan
              Mortgage Acquisition Corp., as Seller.
[{"type": "8-K", "sequence": "1", "filename": "p415216_8k.txt", "description": "FORM 8-K", "secsgml_size_bytes": 7271}]
{"company-data": {"conformed-name": "Chase Mortgage Finance Trust Series 2006-S2", "cik": "0001375214", "assigned-sic": "6189", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "333-130223-07", "film-number": "061140523"}, "business-address": {"street1": "194 WOOD AVENUE SOUTH", "street2": "C/O A HARDY EUBANKS III", "city": "ISELIN", "state": "NJ", "zip": "08830", "phone": "7322050600"}, "mail-address": {"street1": "194 WOOD AVENUE SOUTH", "street2": "3RD FLOOR", "city": "ISELIN", "state": "NJ", "zip": "08830"}}
UNITED STATES
                       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)
                               September 26, 2006

CHASE MORTGAGE FINANCE CORPORATION (as Depositor under the Pooling and Servicing
Agreement, dated as of September 1, 2006, providing for the issuance of Chase
Mortgage Finance Trust Multi-Class Mortgage Pass-Through Certificates, Series
2006-S2)

                   Chase Mortgage Finance Trust Series 2006-S2
                                (Issuing Entity)

                       Chase Mortgage Finance Corporation
                                   (Depositor)

                             Chase Home Finance LLC
                                    (Sponsor)

                       Chase Mortgage Finance Corporation
                                  (Registrant)

          Delaware                     333-130223                 52-1495132
(State or Other Jurisdiction          (Commission              (I.R.S. Employer
      Of Incorporation)               File Number)           Identification No.)

194 Wood Avenue South, 3rd Floor
       Iselin, New Jersey
(Address of Principal Executive                                     08830
            Offices)                                              (Zip Code)

     Registrant's telephone number, including area code: (732) 205-0600

                                    No Change
          (Former Name or Former Address, if Changed Since Last Report)

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:

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

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

[_]  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

     The Registrant registered issuances of Chase Mortgage Finance Trust Series
2006-S2 Multi-Class Mortgage Pass-Through Certificates on a delayed or
continuous basis pursuant to Rule 415 under the Securities Act of 1933, as
amended (the "Act"), by a Registration Statement on Form S-3 (Registration File
No. 333-130223 (the "Registration Statement")). Pursuant to the Registration
Statement, the Registrant issued $1,019,172,758 in aggregate principal amount
Class 1-A1, Class 1-A2, Class 1-A3, Class 1-A4, Class 1-A5, Class 1-A6, Class
1-A7, Class 1-A8, Class 1-A9, Class 1-A10, Class 1-A11, Class 1-A12, Class
1-A13, Class 1-A14, Class 1-A15, Class 1-A16, Class 1-A17, Class 1-A18, Class
1-A19, Class 1-AX, Class 2-A1, Class 2-A2, Class 2-A3, Class 2-A4, Class 2-A5,
Class 2-A6, Clas 2-A7, Class 2-A8, Class 2-A9, Class 2-AX, Class A-R, Class A-M,
Class M, Class B-1, Class B-2, Class B-3, Class B-4, and Class B-5 Certificates
of its Chase Mortgage Finance Trust Series 2006-A1 Multi-Class Mortgage
Pass-Through Certificates, Series 2006-S2 on September, 2006.

     This Current Report on Form 8-K is being filed to satisfy an undertaking,
contained in the definitive Prospectus, dated September 25, 2006, as
supplemented by the Prospectus Supplement, dated September 25, 2006
(collectively, the "Prospectus Supplement"), to file a copy of the Pooling and
Servicing Agreement (as defined below) executed in connection with the issuance
of the Certificates, a form of which was filed as an exhibit to the Registration
Statement.

     The Certificates (as defined below) were issued pursuant to a Pooling and
Servicing Agreement, attached hereto as Exhibit 4.1, dated as of September 1,
2006, among Chase Mortgage Finance Corporation, as depositor, JPMorgan Chase
Bank, N.A., as servicer and custodian, The Bank of New York, as trustee and
JPMorgan Chase Bank, N.A., as paying agent. The "Certificates" consist of the
following classes: Class A, Class M, and Class B. The Certificates evidence all
the beneficial ownership interest in a trust fund (the "Trust Fund") that
consists primarily of one pool of certain fixed rate, first lien residential
mortgage loans (the "Mortgage Loans") with an aggregate outstanding principal
balance of approximately $1,024,294,266 as of September 1, 2006. Capitalized
terms used herein and not otherwise defined shall have the meanings assigned to
them in the Pooling and Servicing Agreement.

     Item 9.01. Financial Statements and Exhibits

     (a)  Not applicable.

     (b)  Not applicable.

     (c)  Not applicable.

     (d)  Exhibits:

          4.1  Pooling and Servicing Agreement, dated as of September 1, 2006,
               among Chase Mortgage Finance Corporation, as Depositor, JPMorgan
               Chase Bank, N.A., as Servicer and Custodian, The Bank of New
               York, as Trustee and JPMorgan Chase Bank, N.A., as Paying Agent.

          99.1 Mortgage Loan Sale Agreement, dated as of September 1, 2006,
               among Chase Mortgage Finance Corporation, as Purchaser, and Chase
               Home Finance LLC, as Seller.
99.2 Mortgage Loan Sale Agreement, dated as of September 1, 2006,
               among Chase Mortgage Finance Corporation, as Purchaser, and J.P.
               Morgan Mortgage Acquisition Corp., as Seller.
SIGNATURES

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

                                             CHASE MORTGAGE FINANCE CORPORATION

                                             By: /s/ Bruce J. Friedman
                                                 -------------------------------
                                                 Name: Bruce J. Friedman
                                                 Title: Vice President

Dated: October 11, 2006
EXHIBIT INDEX

Exhibit No.   Description
-----------   -----------

4.1           Pooling and Servicing Agreement, dated as of September 1, 2006,
              among Chase Mortgage Finance Corporation, as Depositor, JPMorgan
              Chase Bank, N.A., as Servicer and Custodian, The Bank of New York,
              as Trustee and JPMorgan Chase Bank, N.A., as Paying Agent.

99.1          Mortgage Loan Sale Agreement, dated as of September 1, 2006, among
              Chase Mortgage Finance Corporation, as Purchaser, and Chase Home
              Finance LLC, as Seller.

99.2          Mortgage Loan Sale Agreement, dated as of September 1, 2006, among
              Chase Mortgage Finance Corporation, as Purchaser, and J.P. Morgan
              Mortgage Acquisition Corp., as Seller.