NEW YORK (AP) — A look at the 10 biggest percentage gainers on Nasdaq at 1 p.m.:

Ceradyne Inc. rose 42.9 percent to $34.92.

Fonar Corp. rose 38.1 percent to $5.18.

BioFuel Energy rose 19.3 percent to $6.05.

Sevcon Inc. rose 18.1 percent to $5.61.

Versant Corp. rose 15.0 percent to $11.33.

Patrick Industries Inc. rose 14.4 percent to $17.69.

Synta Pharm rose 13.6 percent to $8.66.

MSB Financial Corp. rose 12.1 percent to $6.20.

S&W Seed Co. rose 10.2 percent to $6.70.

Chuy's Holdings Inc. rose 10.0 percent to $26.96.