Midday movers: Abbott, Northern Trust, Tesla & More
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Charles Schwab - The brokerage fell after posting slightly better-than-expected second-quarter revenue and profit.

AMC Networks - The cable television network and competitors including Scripps Networks Interactive and Viacom jumped on thinking they could be potential acquisition targets in the wake of the $80 billion bid for Time Warner from Rupert Murdoch's Twenty-First Century Fox .

Abbott Laboratories - The maker of medical products edged higher after reporting better-than-expected quarterly earnings.

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

HCA Holdings - The provider of health care gained after raising earnings guidance for the second quarter and year. Tenet Healthcare , United Health Services , Community Health Systems , Lifepoint Hospitals and Envision Healthcare Holdings also rose.



JB Hunt Transport Services - The freight company climbed after Credit Suisse upgraded the stock to outperform from neutral.

Lannett - The provider of generic prescription pharmaceuticals declined after saying it had received a subpoena from Connecticut's attorney general into the company's pricing of digoxin, a treatment for heart trouble.

Northern Trust - The bank declined fell after reporting second-quarter results.

St Jude Medical - Shares fell slightly after the maker of heart-rhythm devices reported quarterly earnings.

Tesla Motors - The maker of electric cars declined after saying it would name its planned small car the Model 3.

Western Digital - The digital-storage company gained after Robert Baird upgraded the stock to outperform from neutral.

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—By CNBC's Rich Fisherman.

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