Take a look at some of Thursday's midday movers:
Sprint and T-Mobile US - Shares of both telecommunications companies fell as merger and acquisition hopes faded. CNBC's David Faber said the FCC was not in favor of the merger. The stocks spiked Wednesday afternoon on chatter a deal was near.
Advance Auto Parts and O'Reilly Automotive - Shares of both suppliers of auto parts gained on better-than-expected fourth-quarter earnings. O'Reilly hit a record high as it also said it would increase its buyback program by $500 million to $4 billion. AutoZone also rose.
L Brands - The retailer rose as January same-store sales increased by a better-than-expected 9 percent. As a result, the company, which owns Victoria's Secret, said fourth-quarter earnings would come in higher than previously announced.
Ann - The owner of Ann Taylor gained after reporting an improved outlook for fourth-quarter margins. The company also issued a fourth-quarter earnings warning.
USG - The maker of building materials climbed to a six-year high after reporting better-than-expected fourth-quarter earnings and revenue.
Icahn Enterprises - The investing vehicle for Carl Icahn gained after it said Keith Cozza had been named president and CEO, replacing Daniel Ninivaggi.
Teva Pharmaceuticals Industries - The generic drug manufacturer posted better-than-expected fourth-quarter earnings and increased its dividend by 5 percent. But its shares fell after a federal appeals court ruled it and other generic competitors had infringed on patents held by Pfizer.
Repros Therapeutics - Shares jumped after the company met with officials at the Food and Drug Administration and said it did not believe it would have to run further safety studies of its testosterone drug Andraxol.
Apache - The energy company gained after raising its quarterly dividend 25 percent to 25 cents a share.
AOL - The internet search engine fell after reporting mixed quarterly results.
The New York Times - The newspaper owner rose after reporting better-than-expected fourth-quarter earnings and revenue.
Kellogg - The cereal maker declined after saying that sales in its flagship U.S. breakfast unit declined 4 percent.
Twenty-First Century Fox -The media entertainment company rose after reporting better-than-expected second-quarter earnings.
(Read More: See CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
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