Take a look at some of Tuesday's midday movers:
Carnival Cruise Lines moved higher after the company's third-quarter earnings beat Street expectations. The company added cruise prices could recover in 2013.
Deckers continued to fall amid concerns over the sales of its Ugg boots. The stock is down 28 percent this month.
Tesla Motors lost ground after the electric car maker cut its 2012 revenue forecast.
Vertex Pharmaceuticals fell after it said it will discontinue development of its experimental hepatitis-c drug. Rivals Gilead and Idenix moved higher following the news.
RadioShack plunged after news that the consumer electronics retailer will be dropped from the S&P 1500 index by week’s end.
Staples moved lower following its latest strategy plan that includes cutting expenses, closing stores, investing in its online unit and implementing leadership changes.
New York Times gained after the newspaper company said it will sell its remaining interest in its online jobs search website Indeed.com.
Ashland fell after August sales in its specialty ingredients segment fell nearly 10 percent from July.
C.H. Robinson rose after it agreed to buy Phoenix International for $635 million.
Vail Resorts moved higher after posting a narrower-than-expected fourth-quarter loss on an 11 percent jump in revenue.
Emerson Electric fell after its orders declined on weakness in the telecom sector.
ECB Bancorp rose after being acquired by Crescent Financial for $17.75 a share.
Safeway moved higher after BMO upgraded the grocer to "outperform" and reiterated its $25 price target.
FactSet Research Systems slid as the company's revenue growth slowed to less than 10 percent, ending a two-year run of double-digit revenue growth.
Forward Air Corp fell after the air-cargo industry contractor lowered its third-quarter guidance.
—By CNBC's Rich Fisherman.
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