Take a look at some of Monday's midday movers:
Apple hit a fresh 52-week low.
Radian Group traded at a 52-week high after the company was upgraded to "outperform" from "market perform" at Keefe, Bruyette & Woods with a price target of $12.
Intuitive Surgical added to last week's losses following a report about an investigation into its da Vinci robot. The medical device maker was the worst performer on the Nasdaq 100 index.
Caterpillar was the worst performer on the Dow on concerns about growth in China.
—By CNBC's Lori Spechler
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Economists shaved growth expectations for the second quarter after the June durable goods report revealed weak shipments.
Names on the move ahead of the open.
President Barack Obama may be igniting debate by going after a corporate tax loophole, but analysts see little chance Congress will take action soon.
Caterpillar's mixed report tempered early gains spurred by manufacturing data.
Patti Domm is CNBC Executive Editor, News, responsible for news coverage of the markets and economy.
A CNBC reporter since 1990, Bob Pisani covers Wall Street from the floor of the New York Stock Exchange.
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Rick Santelli joined CNBC Business News as an on-air editor in 1999, reporting live from the floor of the Chicago Board of Trade.
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