2011-09-20 — nanex.net
In other words, someone was cheating -- ``On September 15, 2011, beginning at 12:48:54.600, there was a time warp in the trading of Yahoo! (YHOO) stock. HFT has reached speeds faster than time itself. Up to 190 milliseconds into the future, or 0.19 fantaseconds is the record so far. It all happened in just over one second of trading, the evidence buried under an avalanche of about 19,000 quotations and 3,000 individual trade executions. The facts of the matter are indisputable. Based on official exchange timestamps, there is unmistakable proof that YHOO trades were executed on quotes that didn't exist until 190 milliseconds later! ''
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