American Railcar jumped 51 percent to $69.72 at 11:02 a.m. in New York, the most intraday since the shares began trading in 2006. Greenbrier climbed 4.8 percent, and Trinity advanced 4.4 percent. American Railcar had gained 11 percent this year through Oct. 19, while the Russell 3000 Railroad Equipment index climbed 6.7 percent.
The purchase is expected to close this quarter, subject to customary conditions.
This article was provided by Bloomberg News.