主题：高盛的黑池交易平台。 -- 破奴冠军

Demand is running high: Tabb Group estimates about 10% to 12% of U.S. daily stock trading volume washes through the pools. Currently, Nasdaq executes about 18% of its overall volume, or about 350 million shares a day, through its non-displayed platform, which, like dark pools, offers anonymity to clients, up from around 10% about 18 months ago. Nasdaq estimates it will eventually route 5% to 10% of its volume through its dark-pool allies.