Take a look at some of Tuesday's midday movers:
Amazon.com - The internet retailer fell along with other momentum names, including Netflix, Priceline Group and Tesla Motors.
American Electric Power - The utility gained along with others in its sector, including Duke Energy, Edison International, FirstEnergy and Southern Company.
Anacor Pharmaceuticals - The drug developer dropped after regulators approved its drug for nail infections.
Blackberry - The maker of wireless phones declined as investors took profits, with the stock still up more than 40 percent over the past month.
Delta Air Lines - The carrier and competitors including American Airlines Group, United Continental Holdings, JetBlue Airways and Southwest fell after Air-France-KLM issued a full-year profit warning.
Facebook - The social-media company and others in the space dropped, with LinkedIn, Twitter, Yelp and Zynga weighing on the Nasdaq.
First Solar - The solar company, another momentum play, also took a hit, along with competitors SunEdison and SunPower.
Ford Motor - The company dropped after saying it would recall 100,566 vehicles in North America for safety defects.
Goldman Sachs Group - The brokerage lost ground after KBW cut its second-quarter and 2014 earnings estimates.
Morgan Stanley - The banking company declined after KBW reduced its 2014 earnings estimate by a penny.
Pandora Media - The provider of online music fell on concerns about increasing competition.
Shire - The Irish drug maker declined as AbbVie sweetened its offer by 11 percent to about $51.3 billion.
Correction: This story story the nationality of Shire, the Irish drug maker
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—By CNBC's Rich Fisherman.
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