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Re:Insights into High Frequency Trading from the Virtu IPO [... by maxerickson on Thursday May 04, 2017 @06:07PM (#14269287)
Something is providing the liquidity that has brought spreads down over the last couple of decades.
Re:Insights into High Frequency Trading from the Virtu IPO [... by jandrese on Thursday May 04, 2017 @08:08PM (#14270055)
Computerized trading. Sellers basically publish their positions on a server and buyers query for the best price on a stock and the place the order. None of this requires or benefits from HFT.