Check out which companies are making headlines before the bell:
McDonald's–The fast food giant reported fourth quarter profit of $1.40 per share, beating estimates by one cent. However, revenue fell slightly short of analyst estimates, as did the company's December same-store sales. McDonald's called 2013 a "challenging year" in a statement.
Southwest Airlines–Southwest reported fourth quarter profit of 33 cents per share, four cents above estimates, with revenue also beating forecasts. The airline also said it's seeing strong bookings for the current quarter.
Union Pacific–The rail operator beat estimates by six cents with fourth quarter profit of $2.55 per share. Revenue also beat estimates, and the company saw overall volume growth for the first time in six quarters despite weaker coal shipments.
Nokia–Nokia beat estimates with its fourth quarter earnings, but sales dropped 22 percent at its network equipment division. The company had announced the sale of its mobile phone handset business to Microsoft In November.
Fifth Third–The regional bank earned 43 cents per share for the fourth quarter, beating estimates by a penny, with revenue also slightly above consensus.
Lockheed Martin–The defense contractor reported fourth quarter profit of $2.04 per share, excluding certain items, nine cents above estimates. The company also said it expected earnings to improve this year.
United Continental–The airline earned 78 cents per share for the fourth quarter, excluding certain items, beating estimates of 65 cents. United said 2013 was notable for improved operational efficiency and increased customer satisfaction scores.
AmerisourceBergen–The drug distributor earned 80 cents per share for its fiscal first quarter, excluding certain items, beating estimates by two cents. Revenue was also above analyst forecasts.
Baxter International–The medical products company beat estimates by a penny with fourth quarter profit of $1.26 per share, excluding certain items.
eBay–Carl Icahn announced that he took a stake in the company while calling for a PayPal spinoff. Separately, eBay reported fourth quarter profit of 81 cents per share, beating estimates by a penny. However it also issued revenue guidance that was somewhat shy of Street estimates.
Netflix–The video service reported fourth quarter profit of 79 cents per share, easily beating estimates of 66 cents. The company also said it added 2.33 million streaming subscribers during the quarter.
American Eagle Outfitters-CEO Robert Hanson has departed after just two years on the job. Executive chairman Jay Schottenstein will serve as interim CEO while the search for a permanent replacement is conducted.
F5 Networks–F5 earned $1.22 per share, excluding certain items, for its first quarter, three cents above estimates, with revenue also beating consensus. The networking equipment company issued current quarter guidance that beats Street forecasts, and also announced a $500 million stock buyback program.
Western Digital–The hard disk drive maker reported second quarter profit of $2.19 per share, excluding certain items, 11 cents above estimates. Revenue also beat forecasts, but also gave a cautious current quarter outlook.
SanDisk–The maker of memory chips earned $1.71 per share, excluding certain items, for the fourth quarter, well above estimates of $1.58. The company was helped by increasing adoption of solid state disk drives. However, SanDisk also gave 2014 guidance below analyst forecasts.
Logitech –Logitech returned to profit during the third quarter, and the maker of computer peripherals also raised its full-year guidance on increasing sales of accessories for tablet devices.
AT&T–The cellular giant will record a non-cash pre-tax gain of $7.6 billion for the fourth quarter, related to its pension plans.
—By CNBC's Peter Schacknow
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