NEW YORK (AP) — A look at the 10 biggest percentage gainers on Nasdaq at the close of trading:

WebMD Health Corp. Cl A rose 25.4 percent to $20.44.

Aruba Networks rose 22.1 percent to $25.40.

USMD Holdings Inc. rose 18.9 percent to $14.50.

Sourcefire Inc. rose 14.6 percent to $48.42.

Onyx Pharmaceuticals Inc. rose 12.0 percent to $78.31.

DexCom Inc. rose 11.3 percent to $15.73.

Charter Communications Inc. rose 10.4 percent to $85.02.

InterNAP Network rose 10.4 percent to $8.72.

QKL Stores Inc. rose 9.9 percent to $6.65.

Atlantic Tele-Network Inc. rose 9.7 percent to $48.63.