March 16, 2000
DREYFUS STOCK INDEX FUND
SUPPLEMENT TO STATEMENT OF ADDITIONAL INFORMATION
DATED MAY 1, 1999
1. The following information replaces all contrary information contained in the
sections of the Statement of Additional Information ("SAI") entitled
"Description of the Fund", "Management of the Fund" and "Management
Arrangements":
Effective March 16, 2000, Dreyfus Service Corporation ("DSC") became
the distributor to the Fund. DSC is located at 200 Park Avenue, New York, NY
10166.
2. The following information replaces the information contained in the section
of the Statement of Additional Information ("SAI") entitled "Management of the
Fund - Officers of the Fund":
Stephen E. Canter, President. President, Chief Operating Officer, and Chief
Investment Officer of the Manager, and an officer of other investment
companies advised and administered by the Manager. Mr. Canter also is a
Director or an Executive Committee Member of the other investment
management subsidiaries of Mellon Financial Corporation, each of which is
an affiliate of the Manager. He is 54 years old.
Mark N. Jacobs, Vice President. Vice President, General Counsel and Assistant
Secretary of the Manager, and an officer of other investment companies
advised and administered by the Manager. He is 53 years old.
Joseph Connolly, Vice President and Treasurer. Director - Mutual Fund
Accounting of the Manager, and an officer of other investment companies
advised and administered by the Manager. He is 42 years old.
Michael A. Rosenberg, Secretary. Associate General Counsel of the Manager, and
an officer of other investment companies advised and administered by the
Manager. He is 40 years old.
Steven F. Newman, Assistant Secretary. Associate General Counsel and Assistant
Secretary of the Manager, and an officer of other investment companies
advised and administered by the Manager. He is 50 years old.
Mark Kornfeld, Assistant Secretary. Assistant General Counsel of the Manager,
and an officer of other investment companies advised and administered by
the Manager. From September 1993 to October 1998, Mr. Kornfeld was an
Associate Attorney in the Litigation Group of Clifford Chance Rogers &
Wells, LLP. He is 32 years old.
JamesWindels, Assistant Treasurer. Senior Treasury Manager of the Manager, and
an officer of other investment companies advised and administered by the
Manager. He is 41 years old.
The address of each Fund officer is 200 Park Avenue, New York, NY
10166.
