PROFUNDS
Supplement Dated December 1, 1999 to Prospectus Dated May 1, 1999
Effective December 1, 1999, current shareholders may use their personal
computer to transact on-line exchanges of the ProFunds' shares at ProFunds'
website (www.profunds.com). To access this service through the website, you
click on the "Trade/Access Account" icon and you will be prompted to enter your
Social Security Number. You should then follow the instructions to establish
your Personal Identification Number (PIN), which will allow you to execute
exchanges between ProFunds and access ProFunds account information.
Internet exchange transactions are extremely convenient, but are not
risk free. To ensure that all Internet transactions are safe, secure and as
risk-free as possible, ProFunds has instituted certain safeguards and procedures
for determining the identity of web site users. As a result, neither ProFunds
nor its transfer agent will be responsible for any loss, liability, cost or
expense for following Internet instructions they reasonably believe to be
genuine. If you or your intermediary make exchange requests by Internet, you
will generally bear the risk of any loss.
The ProFunds' Prospectus is readily available for viewing on the
website.
The Funds may terminate the ability to exchange ProFund shares on its
website at any time, in which case you may continue to exchange shares pursuant
to the Prospectus.
