A look at the 10 biggest percentage gainers on New York Stock Exchange at the close of trading:

Nordic Amer Offshore rose 13.4 percent to $18.76.

Integrys Energy rose 12.1 percent to $68.35.

China Cord Blood rose 8.6 percent to $5.43.

Aspen Aerogels Inc. rose 7.4 percent to $11.44.

3D Systems Corp. rose 7.3 percent to $57.23.

Pretium Resources Inc. rose 6.8 percent to $8.03.

Zoes Kitchen Inc. rose 6.5 percent to $32.31.

Nustar GP Hldgs rose 5.8 percent to $36.77.

Hi-Crush Partners LP rose 5.3 percent to $56.88.

Rubicon Project rose 5.1 percent to $14.11.