NEW YORK (AP) â¿¿ A look at the 10 biggest percentage gainers on New York Stock Exchange at 1 p.m.:

RSC Holdings rose 56.0 percent to $17.74.

Morton's Restaurant Group rose 32.5 percent to $6.84.

Cobalt International Energy Inc. rose 15.8 percent to $10.42.

Castle AM & Co. rose 10.1 percent to $8.82.

Kosmos Energy Ltd. rose 7.3 percent to $12.43.

US Airways Group rose 7.2 percent to $6.12.

Jaguar Mining Inc. rose 7.1 percent to $6.01.

Fortegra Financial Corp. rose 6.9 percent to $6.06.

Centene Corp. rose 6.8 percent to $38.06.

Digital Domain Media Group rose 6.5 percent to $5.25.
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