Railroad equipment supplier Greenbrier Cos Inc posted a surprise third-quarter profit, helped by lower costs and higher margin, sending its shares up as much as 18 percent.

The company said revenue would continue to be lower in 2010 compared with 2009, and operating results for the second half of the year are expected to be stronger than the first half.

"Our railcar repair shops are also operating at higher utilization levels than earlier this year, as railcars coming out of storage are in need of repair," Chief Executive William Furman said in a statement.

Greenbrier, whose customers include Union Pacific Corp and General Electric Co , said it is seeing some improvement in end-market demand for its rail products and services.

The strong results were driven by better execution and asset sales, analyst Steve Barger of KeyBanc Capital Markets said in a note to clients.

The company said it sold railcars from its lease fleet and realized a gain of $3.1 million, positively affecting gross margins for its leasing and services segment.

In May, Greenbrier had said its unit Gunderson LLC would cut production rates at its marine barge operation due to uncertainties in the marine market, and implemented a four-day week at its operation.

THIRD-QUARTER RESULTS
For the third quarter ended May 31, Greenbrier reported net income of $4.6 million, or 23 cents a share, compared with a net loss of $51.1 million, or $3.04 a share, a year ago.

Revenue for the company fell 13 percent to $211.5 million.

Cost of revenue fell 19 percent to $175.6 million. Margin rose 34 percent to $35.9 million. (Reuters)