Oct 5: Dark pools of Mifid

Dark pools with names like Nyfix, Sigma-X and Crossfinder allow the matching of large blocks of shares without prices being revealed until after trades are completed. Dark pools operated by banks should improve pre- and post-trade transparency, the head of Europe's umbrella group for securities regulators has said. But Steve Grob, dirctor of strategy at trading technology company Fidessa , argues that since Brussels allowed competition in share trading, transparency has actually been reduced.