The top after-market Nasdaq gainers Friday were Concurrent Computer Corporation, PDF Solutions Inc, iRobot Corporation, Frontier Communications Corporation and TeleCommunication Systems Inc.

The top after-market Nasdaq losers were magicJack VocalTec Ltd, Primoris Services Corporation, The Medicines Company and SHFL entertainment Inc.

Gainers

Concurrent Computer Corporation (CCUR) shares climbed 6.01 percent to $7.94 in after-hours trading. The company shares have a 52-week trading range of $ 3.40 - $7.95 and a market capitalization of $65.47 million.

Shares of PDF Solutions Inc (PDFS) rose 3.71 percent in post-market session to close at $15.93. The shares gained 2.26 percent in regular trading. The company shares have a 52-week trading range of $6.27 - $16.12 and a market capitalization of $438.37 million.

iRobot Corporation (IRBT) shares advanced 1.60 percent to $23.50 in post-market trading. The shares lost over 1 percent in regular trading.

Frontier Communications Corporation (FTR) shares gained 1.25 percent and reached $4.45 in after-hours trading. The company shares have a 52-week trading range of $3.06 - $5.15 and a market capitalization of $4.39 billion.

TeleCommunication Systems Inc (TSYS) shares surged 1.24 percent to $2.45 in after-hours trading. The shares of the company went up 7.08 percent in regular trading after the company announced Friday the expansion of its operations to the Middle East region through Connecting Worlds, a Dubai-based company that offers sales extension and virtual branch selling to mobile operators in the Middle East/North Africa region.

Losers

magicJack VocalTec Ltd (CALL) shares slumped 2.87 percent to $13.19 in post-market session. The Rosen Law Firm reminded the investors of the important March 19 lead plaintiff deadline in the class action filed on behalf of those who purchased the securities of magicJack VocalTec Ltd between Feb 28, 2012 and Jan 8, 2013.

Primoris Services Corporation (PRIM) shares plunged 2.59 percent to $ 19.20 in post-market trading. The shares gained 2.76 percent in regular trading. The company shares have a 52-week trading range of $10.90 - $19.80 and a market capitalization of $1.01 billion.

The Medicines Company (MDCO) shares lost 2.06 percent in after-hours trading to reach $29.90. The company shares surged 2.18 percent in regular trade. The shares have a 52-week trading range of $ 19.37 - $30.87 and a market capitalization of $1.61 billion.

SHFL Entertainment Inc (SHFL) shares dropped 2.03 percent to $15.66 in after-hours trading. The shares gained 7.97 percent in regular trading. The company shares have a 52-week trading range of $11.75 - $18.77 and a market capitalization of $ 884.01 million.

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