US stocks got smashed, bashed and trashed yet again, following a modestly higher open. The SkyNet SellBots again applied massive selling pressure and were relentless in driving stocks lower almost unabated all day. The DJIA plunged 559 points (2.2%) and the NASDAQ surrendered 219 points (3.0%).

Dow closes down 550 points as stocks post biggest weekly fall since March

Dow tumbles more than 500 points, wipes out gain for the year to cap wild week

Stay tuned as the battle of the SkyNet StockBots continues!