The top after-market NASDAQ gainers Wednesday were: SMTC Corp, Sequenom, AMAG Pharmaceuticals, Kratos Defense & Security Solutions, Stanley Furniture Co, Hot Topic, MModal, Fuel Systems Solutions, Plexus Corp and Shuffle Master.

SMTC Corp. (SMTX) stock climbed 19.34 percent to $3.95 in post market trading session. The company reported fourth quarter net profit of $0.18 per share compared to $0.28 per share in the same period last year. The company also raised its fiscal 2012 earnings guidance to a range of $0.53 to $0.65 per share compared to its prior estimation of $0.47 to $0.59 per share.

Sequenom, Inc. (SQNM) stock climbed 13.39 percent to $4.15 in post market trading session. Its fourth quarter net loss narrowed to $0.22 per share from $0.27 per share in the same quarter a year-ago.

AMAG Pharmaceuticals, Inc. (AMAG) stock climbed 10.15 percent to $16.50 in aftermarket trading session. The pharmaceutical company met the primary endpoints in a Phase III clinical trial testing its Feraheme drug to treat iron deficiency anemia, Bloomberg reported.

Kratos Defense & Security Solutions, Inc. (KTOS) stock surged 9.95 percent to $6.52 in aftermarket trading session. The company swung to fourth quarter net loss of $8.6 million or $0.25 per share compared to net profit of $0.4 million or $0.02 per share in the same period a year-ago. Kratos Defense & Security expects fiscal 2012 revenue to be in a range of $950 million to $1.00 billion compared to analysts’ estimation of $938.57 million.

Stanley Furniture Co, Inc. (STLY) stock surged 8.94 percent to $3.90 in aftermarket trading session.

Hot Topic, Inc. (HOTT) stock surged 6.94 percent to $9.40 in aftermarket trading session. The company swung to fourth quarter net profit of $9 million or $0.21 per share compared to net loss of $0.6 million or $0.01 per share in the same period a year-ago. The company also expects first quarter earnings to be in a range of $0.02 to $0.05 per share, while analysts’ were expecting the company to break even.

MModal Inc. (MODL) stock gained 6.09 percent to $10.45 in aftermarket trading session. Its fourth quarter net profit surged to $27.8 million or $0.50 per share from $1.4 million or $0.04 per share in the same quarter a year-ago.

Fuel Systems Solutions, Inc. (FSYS) stock rose 2.58 percent to $27.00 in post market trading session.

Plexus Corp. (PLXS) stock gained 2.08 percent to $35.11 in aftermarket trading session. The stock has a 52-week low of $21.06, a 52-week high of $38.71 and $1.20 billion in market capitalization.

Shuffle Master, Inc. (SHFL) stock advanced 1.69 percent to $16.81 in aftermarket trading session.