Effective with the trading session beginning on Sunday, July 25, 2004 (trade date July 26th)  Weather Options trading will change venue from the GLOBEX platform to the NASDAQ-100 options pit on the trading floor. The option strike listing ranges will also be expanded. These changes are being made to provide customers with the ability to trade Weather Options at desirable strike prices, while reducing the maintenance burden on GLOBEX of supporting a wide range of strike prices at which there may be no activity.  Salient features of this conversion are detailed below: