Thanks to a software upgrade, traders using <A HREF="http://www.eweek.com/article2/0,1759,1779394,00.asp">the Chicago Mercantile Exchange's Galax-C handheld trading devices</A> now can trade options on futures for any options contracts currently listed on CME Globex, the exchange's electronic trading platform. Handheld trading was launched at the CME (Chicago Mercantile Exchange) in 1999, and by January 2004, about 31,000 contracts per day were being traded wirelessly. That number increased to 120,000 contracts per day in February 2005, nearly 5 percent of the CME Globex volume.