Lost credit card http://glenvistahigh.co.za/index.php/aabab-08ec.pdf#toe aabab  "Because the data isn't really out there to understandprecisely what is the percentage of market share of dark pools... It's very hard to know if we're at that cap or beyond it,"Mark Goodman, head of quantitative electronic services, Europeat Societe Generale, said.