Of the 81 systems currently operating, 52 are based principally in the US and 28 are based principally in Europe. There are 11 names listed in the 2001 report that are not in this year's edition. However, 13 new names have been added to the survey this year. Nine of the 81 platforms can be used for trading derivatives: Blackbird, BrokerTec Global, Chicago Board of Trade, CreditTrade, DealComposer, Eurex, Garban-Intercapital. Merrill Lynch Capital Markets and SEB Merchant Banking.