Ex. (e)(6)

                       Amendment to Distribution Agreement

     This Amendment, dated February 7, 2002, to the Distribution Agreement dated
as of February 1, 2005 (the "AGREEMENT"), by and among State Street
Institutional Investment Trust, a Trust established under the laws of the
Commonwealth of Massachusetts (the "FUND"), and ALPS Distributors, Inc., a
Colorado corporation, having its principal place of business at 1625 Broadway,
Suite 2200, Denver, Colorado 80202 (the "DISTRIBUTOR").

     WHEREAS, the Distributor and the Fund wish to modify the provisions of the
Agreement to reflect the addition of three new Portfolios under Annex I of this
Agreement; and

     Now Therefore, the parties hereby agree to amend the Distribution Agreement
as follows:

     1.   The parties hereto agree to delete Annex I in its entirety and replace
          it with a new Annex I dated February 7, 2007 and is attached hereto.

     2.   Except as specifically set forth herein, all other provisions of the
          agreement shall remain in full force and effect. Any items not herein
          defined shall have the meaning ascribed to them in the Agreement.

     IN WITNESS WHEREOF, the parties have executed this Amendment as of the date
     first written above.

STATE STREET INSTITUTIONAL              ALPS DISTRIBUTORS, INC.
INVESTMENT TRUST


By: /s/ James Ross                      By: /s/ Jeremy O. May
    ---------------------------------       ------------------------------------
Name: James Ross                        Name: Jeremy O. May
Title: President                        Title: Managing Director



                                     ANNEX I

                                  AS AMENDED ON
                                FEBRUARY 7, 2007

State Street Institutional Investment Trust

     State Street Liquid Reserves Fund
     State Street Institutional Limited Duration Bond Fund
     State Street Institutional Tax Free Limited Duration Bond Fund
     State Street Institutional Tax Free Money Market Fund