The top after-market NASDAQ gainers Friday were: Meru Networks, Energy XXI, Idenix Pharmaceuticals, Fortinet and Achillion Pharmaceuticals. The top after-market NASDAQ gainers losers: Neurocrine Biosciences, Smith Micro Software, FriendFinder Networks and Dunkin' Brands Group.

Gainers:

Meru Networks, Inc. (MERU) stock surged 5.21 percent to $3.84 in post market trading session.

Energy XXI (Bermuda) Ltd. (EXXI) stock surged 4.39 percent to $39.25 in aftermarket trading session. The company announced that its Board of Directors declared a $1.8125 per share quarterly dividend on its shares of 7.25 percent Convertible Perpetual Preferred Stock, which have a face value of $100 per share, and a $3.5156 per share quarterly dividend on its shares of 5.625 percent Convertible Perpetual Preferred Stock, which have a face value of $250 per share.

Idenix Pharmaceuticals, Inc. (IDIX) stock gained 3.66 percent to $11.32 in post market trading session. Barclays Capital initiated coverage for IDIX at “equal weight” with a price target of $10.

Fortinet, Inc. (FTNT) stock gained 2.52 percent to $26.22 in post market trading session. The stock has a 52-week low of $15.78, a 52-week high of $28.56 and $3.94 billion in market capitalization.

Achillion Pharmaceuticals, Inc. (ACHN) stock gained 1.67 percent to $10.06 in post market trading session.

Losers:

Neurocrine Biosciences, Inc. (NBIX) stock plunged 3.71 percent to $8.30 in post market trading session. The stock has a 52-week low of $5.42, a 52-week high of $9.98 and $570.98 million in market capitalization.

Smith Micro Software, Inc. (SMSI) stock declined 2.4 percent to $2.44 in aftermarket trading session.

FriendFinder Networks Inc. (FFN) stock declined 1.72 percent to $2.29 in post market trading session.

Dunkin' Brands Group, Inc. (DNKN) stock fell 1.53 percent to $27.60 in post market trading session. Barclays Capital lowered DNKN’s fiscal 2012 earnings estimate to $1.22 per share from $1.25 per share.

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