4.1 BILLION in shares dumped in last 3 seconds of trading. Last Second 60,000 E-Mini Contract Wipe Out.

Wall Street was hit by a messy opening on Wednesday due to technology glitches at Knight Capital Group (KCG: 6.94, -3.39, -32.82%), causing confusion and shares of the market maker to plunge more than 30% to multiyear lows.