After-Hours Buzz: PAY, NTRI, PLL & More

Check out which companies are making headlines after the bell Tuesday:

VeriFone Systems - The electronic payment solutions company posted earnings of 51 cents a share, excluding one-time items, on sales of $429 million, topping expectations for 48 cents a share on revenue of $426 million. But the company cut its full-year earnings and revenue guidance, sending shares lower in extended-hours trading.

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Nutrisystem - The weight loss products and services company posted a loss of 6 cents a share, excluding one-time items, on revenue of $63 million. Wall Street analysts expected the company to post a loss of 14 cents a share on sales of $64 million. In addition, the company handed in a full-year earnings guidance that missed estimates, sending shares lower in extended-hours trading.

Qihoo 360 - The Chinese software company posted earnings of 22 cents a share, excluding one-time items, on revenue of $103 million, exceeding expectations for 17 cents a share on revenue of $94 million. In addition, the company handed in a current-quarter revenue outlook that beat Wall Street consensus. Still, shares declined in extended-hours trading.

Pall - The diversified machinery company named Larry Kingsley to serve as its interim CFO and announced that Frank Moschella will resume the positions of corporate controller and chief accounting officer.

Piper Jaffray initiated coverage of Peregrine Pharmaceuticals, Vanda Pharmaceuticals and Vivus with an "overweight" rating, sending shares higher in extended-hours trading. Meanwhile, the brokerage started coverage of Navidea with an "underweight" recommendation, pushing shares lower in extended-hours trading.

Sally Beauty - The speciality retailer's board approved a $700 million stock buyback program.

MGIC Investment - The company announced a secondary offering of 135 million shares and a $350 million convertible note offering due 2020 through Goldman Sachs. Shares tumbled in extended-hours trading .

—By CNBC's JeeYeon Park (Follow JeeYeon on Twitter: @JeeYeonParkCNBC)

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