Lamar Advertising Co. (LAMR:US) climbed 15 percent, the most since May 7, to $28.80. The U.S. billboard owner reported an adjusted third-quarter loss of 8 cents per share, narrower than the average analyst estimate of a 17 cent loss in a Bloomberg survey. The company also forecast fourth-quarter sales of $257 million, exceeding the average analyst prediction of $251.9 million.