April 27, 2001—Chicago Mercantile Exchange Inc. (CME) announced it will
revise its current order quantity limits in E-mini S&P 500 futures contracts
effective May 6. The move follows CME Board initiatives begun last August to
expand customer access and trading choices on the GLOBEX®2 electronic system.

CME will also establish in all electronic equity index markets revised order
entry restrictions so that orders greater than 250 contracts must be entered
as multiple entries of 250 contracts or fewer. This enhancement will help
filter out potentially erroneous trades and protect customers from keyboard
errors. CME is the first exchange to apply this additional layer of customer
protection on its electronic trading system. Previously, CME had imposed a
30-contract order quantity limit in E-mini S&P 500 futures. Similar
restrictions in E-mini Nasdaq-100 contracts were lifted last summer.

Also on May 6, CME will institute price "banding" for electronic trading of
equity index products on GLOBEX2. Price banding is an automated order-entry
screening process designed to prevent entry of buy orders priced 2.5 percent
or more above and sell orders priced 2.5 percent or more below the last price
in equity index contracts. Price banding is a safeguard to help prevent
erroneously priced orders from being entered and executed by the system.
GLOBEX2 will continue to support normal price movements.