Market Close: Big Winners & Losers for March 18, 2013 (CHRY, ATOS, NYMX, PRWT, ULTR, AMBO, EFUT, CNET, PTX, LDK)

Chyron Corp. (NASDAQ: CHYR) is up 25.7% at $1.32.

Atossa Genetics Inc. (NASDAQ: ATOS) is up 23.2% at $9.12.

Nymox Pharmaceutical Corp. (NASDAQ: NYMX) is up 21.7% at $5.66.

Premier West Bancorp (NASDAQ: PRWT) is up 21.6% at $1.97.

Ultrapetrol (Bahamas) Ltd. (NASDAQ: ULTR) is up 20.8% at $2.32.

And here are today’s five biggest losing stocks at closing:

Ambow Education Holding Ltd. (NYSE: AMBO) is down 16.8% at $1.29.

eFuture Information Technology (NASDAQ: EFUT) is down 16.5% at $2.94.

ChinaNet Online Holdings Inc. (NASDAQ: CNET) is down 14.7% at $0.87.

Pernix Therapeutics Holdings Inc. (NASDAQ: PTX) is down 11.7% at $5.51.

LDK Solar Co. Inc. (NYSE: LDK) is down 10.6% at $1.27.