Flash Crash Highlights Impact of HFT’s
S&P 500 Index ETF (SPY) daily price chart above for April 23rd, 2013 (click to enlarge) A fake tweet at 1:07 p.m. today from the Twitter account of the Associated Press saying that Barack Obama had been injured in an explosion at the White House resulted in approx 1% drop in the S&P 500 index […]
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