This agreement enables equities traders at over 230 brokers and 1,300 buy- sides on Fidessa’s network to access and trade untapped pools of block liquidity through Aqua. With over 20 Fidessa clients already signed up as founding participants, Aqua is planning a launch this November, 2007.

Kevin Foley, chief executive officer of Aqua, said: Participants get access to new block liquidity with a simple system that reduces information leakage for the sell-side and totally eliminates leakage for the buy-side.