<PAGE>
ROSENBERG SERIES TRUST
======================
EXHIBIT 23(g)(2)
December 1, 2000
State Street Bank and Trust Company
1776 Heritage Drive
North Quincy, MA 02171
Re: AXA ROSENBERG U.S. DISCOVERY FUND
Ladies and Gentlemen:
This is to advise you that the Rosenberg Series Trust ("the Trust") has
established a new series of shares to be known as the AXA Rosenberg U.S.
Discovery Fund. In accordance with the Additional Funds provision of Section 12)
of the Custodian Contract between Rosenberg Small Capitalization Fund and State
Street Bank and Trust Company dated as of 10th August 1988, the Trust hereby
requests that you act as Custodian for the new series under the terms of the
aforementioned contract.
Please indicate your acceptance of the foregoing by executing two copies of this
letter agreement, returning one to the Trust and retaining one copy for your
records.
Sincerely,
ROSENBERG SERIES TRUST on behalf of:
AXA ROSENBERG U.S. DISCOVERY FUND
By:
--------------------------------
Name: Kenneth Reid
Title: Trustee, Duly Authorized
AGREED AND ACCEPTED:
STATE STREET BANK AND TRUST COMPANY
By:
--------------------------------------------
Name: Ronald E. Logue
Title: Vice Chairman
Effective Date: December 1, 2000
