After-hours buzz: Analog Devices, HP & TiVo

New York Stock Exchange NYSE
Scott Mlyn | CNBC

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

Analog Devices - The maker of integrated circuits rose in after-hours trading after reporting strong fiscal-fourth-quarter results.

Hewlett-Packard - The provider of technology and business services reported earnings of $1.06 a share on revenue of $28.4 billion, versus an expected EPS of $1.06 on $28.76 billion in sales. Its shares fell in after-hours trading.

TiVo - Shares of the maker of digital video recorders fell in after-hours trading after it reported a 49 percent decline in quarterly profit.

21Vianet Group - The provider of Internet data-center services fell sharply in after-hours trading after it reported quarterly results.

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