A look at the 10 biggest percentage gainers on New York Stock Exchange at 1 p.m.:

Puma Biotechnology Inc. rose 287.1 percent to $228.52.

Doral Financial rose 34.3 percent to $6.31.

Talisman Energy Inc. rose 11.8 percent to $11.01.

PowerSecure International Inc. rose 9.1 percent to $9.85.

Flagstar Bancorp Inc. rose 8.9 percent to $18.95.

Robert Half International Inc. rose 7.1 percent to $51.61.

Kemet Corp. rose 6.5 percent to $6.07.

Care.com Inc. rose 6.1 percent to $11.18.

Marine Products Corp. rose 5.9 percent to $8.65.

RPC Inc. rose 5.5 percent to $24.25.