The SkyNet BuyBots took control in the overnight futures, sending US stocks sharply higher at the open of trading. But it was all downhill from there into the close.

Dow sheds more than 400 points, Nasdaq leads market selloff as tech rebound fades

The DJIA ended down 220 points (0.8%) and the NASDAQ plunged 222  points (2.2%). Gold and silver continued to consolidate recent gains.

Stay tuned as the battle of the SkyNet StockBots continues.