Just One Question About Yesterday's Last Minute "Berserk ETF" Freak Out
December 19, 2014 at 13:16 PM EST
With 4 seconds to the close of yesterday's epic trading session, someone executed over $200 million and 1,147 trades in SPY - the S&P 500 ETF - in one-second, lifting the price to a S&P level of 2,130.
