John Hancock Sector Funds
Supplement to the Prospectus dated May 1, 2000
John Hancock Health Sciences Fund
On page 6, the "Portfolio Manager" section for the John Hancock Health Sciences
Fund has been changed as follows:
PORTFOLIO MANAGER
Linda I. Miller, CFA
Vice president of adviser
Joined fund team in 1995
Joined adviser in 1995
Began business career in 1980
John Hancock Technology Fund
On page 12, the "Portfolio Managers" section for the John Hancock Technology
Fund has been changed as follows:
SUBADVISER
American Fund Advisors, Inc.
----------------------------
Responsible for day-to-day investment management
Founded in 1978
Supervised by the adviser
PORTFOLIO MANAGERS
Barry J. Gordon
---------------
President of subadviser
Joined fund team in 1983
Began business career in 1971
Marc H. Klee, CFA
-----------------
Senior vice president of subadviser
Joined fund team in 1983
Began business career in 1977
Alan Loewenstein
----------------
Vice president of subadviser
Joined fund team 1983
Began business career in 1979
8/1/00
