The top after-market Nasdaq gainers Tuesday were NetSpend Holdings Inc, Rambus Inc, SINA Corporation, Allscripts Healthcare Solutions Inc and Grand Canyon Education, while the top after-market Nasdaq losers were Town Sports International Holdings Inc, Limelight Networks Inc, Zix Corporation and ANADIGICS Inc.

Gainers

NetSpend Holdings Inc (NASDAQ:NTSP) shares gained 29.45 percent to $15.91 in post-market trading. The company announced after the close Tuesday that it agreed to be acquired by TSYS in an all cash transaction valued at approximately $1.4 billion. The transaction is expected to close in mid-2013.

Rambus Inc (NASDAQ:RMBS) shares climbed 7.02 percent to $6.25 in post-market trading Tuesday. The company announced Tuesday it has signed a patent license agreement with LSI Corporation (NASDAQ: LSI). This agreement allows LSI Corporation to include Rambus patented innovations in all its products. In addition, the two companies have settled all outstanding claims.

SINA Corporation (NASDAQ:SINA) shares advanced 6.39 percent to $56.90 in post-market trading. Sina Corp posted better-than-expected fourth quarter revenue and profit amid concerns about the slowing growth of Chinese online advertising. It posted overall fourth quarter net revenue of $139.1 million, versus an average forecast for $133.9 million according to Thomson Reuters analysts.

Allscripts Healthcare Solutions Inc (NASDAQ:MDRX) shares gained 5.72 percent to $11.82 in post-market trading. The company shares have a 52-week trading range of $8.84-$20.50 and a market capitalization of $1.92 billion.

Grand Canyon Education Inc (NASDAQ:LOPE) shares traded 5.20 percent higher at $26.89 in pre-market trading after the company reported fourth quarter earnings per share of $0.46, $0.04 better than the analyst estimate of $0.42. Revenue for the quarter came in at $141.3 million versus the consensus estimate of $136.09 million.

Losers

Town Sports International Holdings Inc (NASDAQ:CLUB) shares declined 8.17 percent to $10.00 in post-market trading. The company announced that for the first quarter of 2013, it expects revenue to be between $119 million and $120 million, net income to be between $3.5 million and $4 million, and diluted earnings per share to be in the range of $0.15 per share to $0.17 per share, assuming a 39 percent effective tax rate. The Company also forecast EBITDA that will approximate to $23.5 million in the first quarter of 2013. Analysts on an average were expecting the Company to report a revenue of $122.9 million, net income of $4.9 million, EPS of $0.20 and EBITDA of $25.3 million for the first quarter of 2013.

Limelight Networks Inc (NASDAQ:LLNW) shares dropped 7.56 percent to $2.20 in post-market trading. The company reported fourth quarter and full year 2012 financial results. Limelight Networks posted a fourth quarter loss per share of $0.12 versus a loss of $0.06 per share a year ago.

Zix Corporation (NASDAQ:ZIXI) shares slumped 7.29 percent to $3.18 in post-market trading. Zix Corp announced that for first quarter of 2013, it expects revenue to be between $11.7 million and $11.9 million and fully diluted adjusted earnings per share to be $0.03. For fiscal 2013, it projects revenues to be between $48 million and $50 million and fully diluted non-GAAP adjusted earnings per share to be between $0.19 and $0.20. Analysts on an average were expecting the Company to report revenues of $12 million and EPS of $0.04 for first quarter of 2013; revenue of $50 million and EPS of $0.20 for fiscal 2013.

ANADIGICS Inc (NASDAQ:ANAD) shares fell 2.63 percent to $6.07 in post-market trading. The company reported $0.20 loss per share for the quarter, missing the Thomson Reuters consensus estimate of $0.19 by $0.01. The company had revenue of $30.50 million for the quarter, compared to the consensus estimate of $30.51 million.

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