Caterpillar posted a stronger-than-expected quarterly profit on Monday as the world's largest mining and construction equipment company aggressively cut costs to offset continued sluggish sales of its earth-moving equipment.
The results sent the company's shares up 6.1 percent to $91.40 in early electronic trading on the New York Stock Exchange.
In a statement, Doug Oberhelman, Caterpillar's chairman and chief executive officer, said the company was beginning to see "some signs of improvement in the world economy, which should be positive for sales" down the road.
Oberhelman's optimism extended to the emerging markets, a source of investors' concern in recent weeks. He said Caterpillar expects economic growth to pick up in 2014.
Even so, he said the company expects its mining customers to continue to reduce their investments in new equipment in the coming year.