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:                     April 28, 2006
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                          (Date of earliest event reported)

                    Synthetic Fixed-Income Securities, Inc.
                                 On Behalf of

      STRATS(SM) Trust For Allstate Corporation Securities, Series 2006-3
- ------------------------------------------------------------------------------
              (Exact Name of Registrant as Specified in Charter)

                       333-111858-21
Delaware                 001-32867                        52-2316399
(State or Other   (Commission File Number)     (I.R.S. Employer Jurisdiction of
Incorporation)                                        Identification No.)

One Wachovia Center
301 S. College St.
Charlotte, North Carolina                                            28288
- ------------------------------------------------------------------------------
(Address of Principal Executive Offices)                           (Zip Code)

       Registrant's Telephone Number, including area code (704) 374-6611

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any
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

On April 28, 2006, Synthetic Fixed-Income Securities, Inc. ("SFSI")
transferred $35,000,000 (by aggregate principal amount) of 5.95% Notes due
2036 (the "Underlying Securities"), issued by The Allstate Corporation to the
STRATS(SM) Trust For Allstate Corporation Securities, Series 2006-3 (the
"Trust") established by SFSI, which issued 1,400,000 Floating Rate STRATS(SM)
Certificates, Series 2006-3, issued pursuant to a base trust agreement, dated
as of February 28, 2006 (the "Base Trust Agreement"), between SFSI and The
Bank of New York, as trustee (the "Trustee"), as supplemented by a series
supplement thereto, dated as of April 28, 2006 (the "Series Supplement" and,
together with the Base Trust Agreement, the "Trust Agreement"), between SFSI
and the Trustee.

ITEM 9.01. Financial Statements and Exhibits

(a)   Financial Statements - Not Applicable

(b)   Pro Forma Financial Information - Not Applicable

(c)   Exhibits

Item 601(a) of
Regulation S-K
Exhibit No.                    Description
- -----------                    -----------

    4.1            Series Supplement, dated as of April 28, 2006.

   10.1            ISDA Master Agreement, dated as of April 28, 2006, including
                   the Schedule, Credit Support Annex and Confirmations thereto


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                                   SIGNATURE

      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 hereunto duly authorized.

                                       SYNTHETIC FIXED-INCOME SECURITIES, INC.


                                       /s/    James Whang
                                       ---------------------------------------
                                       Name:  James Whang
                                       Title: Managing Director

April 28, 2006


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INDEX TO EXHIBITS
    Exhibit No.                          Description
    -----------                          -----------

        4.1           Series Supplement, dated as of April 28, 2006.

        10.1          The ISDA Master Agreement, dated as of April 28, 2006,
                      including the Schedule, Credit Support Annex and
                      Confirmations thereto