The top after-market NASDAQ gainers Tuesday were Green Mountain Coffee Roasters Inc, Groupon Inc, Tangoe Inc, Hologic Inc and Caribou Coffee Company Inc.

The top after-market NASDAQ losers Monday were PRGX Global Inc, Analog Devices Inc, Frontier Communications Corporation and ACADIA Pharmaceuticals Inc.  

Gainers

Green Mountain Coffee Roasters Inc (GMCR) shares climbed 21.59 percent to $35.20 in post-market trading. The company Tuesday hiked its quarter and full-year forecasts well above the analysts’ expectations.

Groupon Inc (GRPN) shares gained 3.79 percent to $4.11 in post-market trading. The stock has a 52-week low of $2.60, a 52-week high of $25.84 and $2.60 billion in market capitalization.

Tangoe Inc (TNGO) shares rose 3.09 percent to $13.00 in post-market trading. The company announced Tuesday its share repurchase program under which the company might repurchase up to $20 million of its outstanding common stock from time to time on the open market or in privately negotiated transactions.  

Hologic Inc (HOLX) shares advanced 2.78 percent to $19.34 in post-market trading. The stock has a 52-week low of $16.18, a 52-week high of $22.16 and $4.98 billion in market capitalization.

Caribou Coffee Company Inc (CBOU) shares went up by 2.76 percent to $11.90 in post-market trading. The stock has a 52-week low of $9.93, a 52-week high of $18.84 and $235.47 million in market capitalization.

Losers

PRGX Global Inc (PRGX) shares declined 5.74 percent to $6.40 in post-market trading. The company announced Tuesday that it had commenced a public offering of 6,249,234 shares of its common stock, consisting of 2,500,000 shares to be sold by the company and 3,749,234 shares to be sold by certain selling shareholders.   

Analog Devices Inc (ADI) shares slumped 2.77 percent to $39.00 in post-market trading. The company shares slumped after it projected the first quarter results below market expectations. The company forecast earnings per share (EPS) of 40 cents to 48 cents on a revenue decline of 6 percent to 12 percent against the analysts’ expectation of an EPS of 54 cents and revenue growth of 5 percent to $683 million.

Frontier Communications Corporation (FTR) shares dropped 2.61 percent to $ 4.47 in post-market trading.  The stock has a 52-week low of $3.06, a 52-week high of $5.85 and $4.58 billion in market capitalization.

ACADIA Pharmaceuticals Inc (ACAD) shares fell 2.39 percent to $50.40 in post-market trading. The stocks had surged over 136 percent in regular trade Tuesday after the company announced its experimental antipsychotic drug showed significant improvement in patients with Parkinson's disease psychosis in a late-stage trial.