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Midday movers: JCPenney, CF Industries & more

Market Insider | What's Shaking | Stocks to Watch

Take a look at some of Monday's midday movers:

JCPenney spiked after the retailer reaffirmed it expects positive comparable store sales in the third quarter.

CF Industries surged after Mosaic said it would buy the agricultural fertilizer company's phosphate business for $1.2 billion.

Bristol-Myers Squibb rose after Morgan Stanley upgraded the stock to "overweight" from "equal weight," citing positive data on their lung cancer drug.

NQ Mobile continued its fall after a negative report by short seller Muddy Waters. Macquarie maintained an "outperform" rating on the stock with a price target of $26 saying it expected the company to report strong earnings on Nov 13.

Facebook fell below $50 a share ahead of its earnings on Wednesday. The WSJ said the company was unable to land a deal to buy photo-sharing social media company Snapchat for $1 billion.

Teva lost ground after the company denied reports its CEO was considering resigning due to a rift with its board of directors.

Homebuilders were lower following a 5.6-percent drop in pending home sales in September. Lennar, KB Homes, Pulte and Toll Brothers were all trading to the downside.

Edwards Lifesciences moved lower despite reporting better-than-expected third-quarter results as investors focused on the company's weak guidance.

Biogen Idec gained ground after the company posted better-than-expected third-quarter earnings, boosted by sales of its multiple sclerosis drug Tecfidera.

General Electric rose after Credit Suisse raised its price target on the conglomerate to $29 from $27.

Loews fell after the company reported lower adjusted net income for the third quarter, pressured by falling profits from its Diamond Offshore drilling unit.

—By CNBC's Rich Fisherman.

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