Check out which companies are making headlines after the bell Tuesday:
Intel - The chipmaker posted earnings of 40 cents a share on revenue of $12.58 billion, falling slightly short of expectations for 41 cents a share on sales of $12.59 billion. Meanwhile, the company said it expects to see current-quarter revenue largely in line with current Wall Street estimates. Shares gained in extended-hours trading.
(Read More: Stocks Post 1% Rally, Dow Jumps 150; Vix Sinks)
Yahoo - The Internet company posted earnings of 38 cents a share, excluding one-time items, on revenue of $1.07 billion, against forecasts for 24 cents a share on sales of $1.10 billion. Shares reversed their initial gains to turn lower in choppy extended-hours trading.
CSX - The railroad company posted earnings of 45 cents a share on revenue of $2.96 billion, topping expectations for 40 cents a share on revenue of $2.92 billion. In addition, the company raised its quarterly dividend to 15 cents a share from 14 cents as share and authorized a $1 billion share buyback program. Meanwhile, the company said it expects to produce average annual earnings growth of between 10 and 15 percent through 2015, though earnings in 2013 are expected to be flat to down from prior-year levels. Shares initially rallied following the report, but eventually pared their gains in extended-hours trading.
United Rentals - The equipment rental company reported earnings of 58 cents a share, excluding one-time items, on revenue of $1.10 billion, against expectations for 48 cents a share on sales of $1.11 billion. The company also reaffirmed its full-year revenue guidance. But shares declined in extended-hours trading.
Discover Financial - The credit card company boosted its quarterly dividend by 43 percent to 20 cents a share.
Amgen - The biotechnology company agreed to pay the U.S. $24.9 million to settle allegations that it violated the False Claims Act, according to the Justice Department. Shares slipped in extended-hours trading.
News Corp. - The media company announced that 21st Century Fox will be the name of the independent media and entertainment company created by the proposed separation of its businesses.
Omega Health - The real estate investment trust increased its quarterly dividend to 46 cents a share from 45 cents a share.