The top after-market NASDAQ gainers Thursday were: Fuwei Films, Coinstar, Gravity Co, Warren Resources, iGATE Corp, Acorda Therapeutics, L&L Energy, iRobot Corp, FormFactor and Netflix, Inc.

Fuwei Films (Holdings) Co., Ltd. (FFHL) stock climbed 14.55 percent to $2.30 in post market trading. The company reported fiscal 2011 revenues of RMB537.6 million or US$85.4 million compared with RMB501.5 million in 2010. Revenue for the fourth quarter declined to RMB109.2 million or US$17.4 million from RMB173.5 million in the same period last year mainly due to decreased sales price and volume.

Coinstar, Inc. (CSTR) stock climbed 13.83 percent to $69.79 in post market session. The company currently expects first quarter core earnings to be in a range of $1.36 to $1.40 per share compared to prior estimation of $0.76 to $0.91 per share, while analysts’ expect earnings of $0.90 per share.

For fiscal 2012, Coinstar raised its earnings guidance to a range of $4.40 to $4.80 per share on revenues of $2.155 to $2.280 billion from its prior estimation of $3.80 to $4.30 per share on revenues of $2.075 to $2.250 billion.

Gravity Co., Ltd. (GRVY) stock gained 4.86 percent to $2.23 in aftermarket session. The company stock plunged more than 4 percent in regular trade.

Warren Resources, Inc. (WRES) stock surged 4.73 percent to $3.10 in post market session.

iGATE Corp. (IGTE) stock gained 3.96 percent to $17.85 in aftermarket session.

Acorda Therapeutics, Inc. (ACOR) stock advanced 3.9 percent to $25.60 in post market session. The company announced Thursday that it has been named to the Forbes 2012 100 Most Trustworthy Companies.

L&L Energy, Inc. (LLEN) stock surged 3.9 percent to $2.40 in aftermarket session.

iRobot Corp. (IRBT) stock rose 1.76 percent to $25.40 in post market session. The stock has a 52-week low of $22.46, a 52-week high of $39.00 and $682.12 million in market capitalization.

FormFactor, Inc. (FORM) stock rose 1.71 percent to $5.95 in post market trading after gaining more than 2 percent in regular session.

Netflix, Inc. (NFLX) stock advanced 1.56 percent to $105.89 in post market session after surging more than 4 percent in regular trade. The stock has a 52-week low of $62.37, a 52-week high of $304.79 and $5.78 billion in market capitalization.

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