CSX shares fell more than 4 percent in after-hours trading as the railroad company reiterated its outlook for the year, disappointing analysts and investors.
Analysts had been anticipating CSX's earnings guidance to $1.20 a share. However, the company said it continues to expect growth of 25 percent in adjusted EPS, which implies a $1.12-a-share outlook.
The guidance overshadowed CSX's earnings and revenue beats Tuesday afternoon. The company posted quarterly EPS of 64 cents and revenue of $2.93 billion, compared with consensus estimates of 59 cents and $2.85 billion, according to Thomson Reuters.
CNBC's Susan Li contributed to this report.