| http://www.w3.org/ns/prov#value | - We realized we needed this data all the time, and not just in an emergency, to understand detailed patterns, monitor the markets, and inform us on how orders flow, interactions with trades, rates of cancellation, volatility, and other things that are really central to understanding market structure, Berman, a former hedge fund manager and Princeton-trained nuclear physics PhD, said in a recent i
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