EU Reaches Breakthrough on Restraining Dark Pools, Lawmaker Says

European Union negotiators reached a breakthrough on how much equity trading can occur on private platforms known as dark pools, as talks advanced toward overhauling the bloc’s financial market rulebook.

EU lawmakers and diplomats brokered a tentative deal to curb a waiver that traders use to conceal some details of their activities, Markus Ferber, a German member of the European Parliament, said in a phone interview. They also agreed on rules for a new type of trading platform, known as an organized trading facility, he said.