-$0.91
7.3%
Shares of Southwest Airlines Co. fell to $11.49. The stock dropped the most in four years after the airline, facing a federal fine for possible maintenance violations, said it grounded about 40 of its planes until it could verify that the aircraft underwent inspection.
$2.64
3.6%
Caterpillar Inc. stock advanced to $75.25. The shares were the biggest gainer in the Dow Jones industrial average a day after the firm boosted its sales forecast for 2010 by more than 30 percent, to roughly $60 billion.
$9.29
25.9%
Boston Beer Co. stock surged to $45.10. The shares posted their biggest gain since their November 1995 initial public offering after the maker of Sam Adams beer forecast 2008 profit that exceeded estimates.
-$6.50
13.7%
Humana Inc. stock dropped to $40.88. The health insurer revised its 2008 earnings forecast to a range of $4 to $4.25 a share. The previous forecast was $5.35 to $5.55 a share.
$0.91
11.3%
Talbots Inc. stock gained to $8.95. The women’s clothing store chain said it expects to earn at least 47 cents a share this year from continuing operations. Analysts anticipated 32 cents a share.
-$4.13
9.8%
Shares of KLA-Tencor Corp. slumped to $37.80. The nation’s second-largest chip equipment-maker was downgraded to “underperform” from “perform” by Oppenheimer, which said the company was losing major market share to Applied Materials Inc.
