Stocks tumbled after a combination of factors, including a surprising trade deficit in China and weak jobless claims, sent investors scurrying to safe-haven assets like Treasurys.
The Dow Jones Industrial Average plunged nearly 200 points after falling a little more than a point in choppy trading on Wednesday.
So which individual stocks are worth watching today? Here are six that are on the move:
The telecom company was upgraded to overweight from equal-weight at Evercore Partners. Shares were up 3 percent on a down day overall.
The defense contractor was upgraded to sector perform from underperform at RBC Capital with a price target of $75
The bank was downgraded to sell from buy at MF Global, and shares were down more than 2 percent.
The telecom equipment maker was trading at lows not seen since July, 2009.
The brewing company was upgraded to buy from neutral at Goldman Sachs.
The automaker was trading about 2 percent lower Thursday after CFO Chris Liddell announced his is stepping down..
Get the latest stock picks on the CNBC Stock Blog, and see what analysts and others are watching before the bell each day at Analyst Watch.