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by boxy_brown
5164 days ago
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Your comment is conjecture, not evidence. It's an invalid conjecture, because it makes sweeping assumptions about some of the most complicated, chaotic properties of securities markets. And it's incorrect. There are market centers that prohibit high frequency traders. Reg NMS requires any center that disseminates quotes to prohibit trading through the NBBO (best price at any point in time across all exchanges). So these market centers must be dark pools, not exchanges nor ECNs. These centers represent a small and shrinking amount of trading volumes. Nonetheless, they exist. |
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