Midday Movers: HLF, MAR & More

Take a look at some of Friday's midday movers:

Herbalife pared its gains as billionaire investor Carl Icahn discussed his long position on CNBC.

Marriott spiked after the company declared a cash dividend and increased its share buyback by an additional 25 million shares.

Gap popped on heavy volume, fueled by takeover rumors.

Wal-Mart slipped as the horse meat tainted food scandal widened in Europe. Wal-Mart's British supermarket, Asda said that it had discovered horse DNA in its beef bolognese sauce.

H&R Block hit a 52-week high as Oppenheimer raised its target price on the tax preparation company to $27 from $24 with an "outperform" rating.

Entergy hit a 52-week low after the company filed updated plans for spin-off of its transmission assets with the SEC.

Google hit another historic high. Shares of the search company are up nearly 12 percent year-to-date.

—By CNBC's Lori Spechler

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