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-$3.76

7.2%

Allstate Corp. stock tumbled to $48.49. The stock slid a day after the Northbrook-based company, the nation’s largest publicly traded home and auto insurer, reported fourth-quarter earnings that fell more than analysts expected on losses from the October wildfires in California.

$1.91

2.4%

Boeing Co. stock advanced to $82.87. The shares posted the biggest gain in the Dow Jones industrial average after the Chicago-based planemaker reported an increase in fourth-quarter earnings and raised its annual profit forecast.

-$1.76

8.5%

Yahoo Inc. stock slid to $19.05. The shares sank to the lowest level since November 2003 a day after the company disappointed investors with its sales forecast. Yahoo was downgraded by at least three brokerages, including Citigroup Inc.

$3.13

12.6%

Shares of Robert Half International Inc. jumped to $27.98. The stock rose the most since October 2005 after the supplier of temporary workers reported a profit of 50 cents a share in the fourth quarter, beating estimates by 3 cents a share.

$1.48

6.8%

Shares of Wolverine World Wide Inc. gained to $23.30. The maker of Hush Puppies and Merrell shoes said fourth-quarter profit rose and it increased its earnings estimate for 2008.

-$6.88

20.3%

Cymer Inc. stock plummeted to $27. The shares declined the most since the firm’s September 1996 initial public offering after the maker of lasers used in chip manufacturing said first-quarter sales will be 15 percent less than analysts expected.