By Lu Wang

BLOOMBERG NEWS

Shares of the following companies are having unusual moves in U.S. trading this morning.

Alcoa Inc. (AA US) fell the most in the Dow Jones Industrial Average, sliding 1.3 percent to $12.82. The largest U.S. producer of aluminum was initiated with an "underweight" rating at HSBC Holdings Plc, which said the shares are expensive.

Coldwater Creek Inc. (CWTR US) declined 4 percent to $7.02 and lost 8.3 percent earlier, the most intraday since Aug. 17. President and Chief Executive Officer Daniel Griesemer resigned after almost two years in that position, the women's clothing retailer said.

CTC Media Inc. (CTCM US) dropped the most in the Russell 1000 Index, slumping 7.2 percent to $15.80. The owner of Russia's fourth-biggest television network was cut to "neutral" from "buy" at Bank of America Corp., which said the stock has "limited upside" after a 39 percent rally in the three months before today.

E‚‚Trade Financial Corp. (ETFC US) added 3.6 percent to $1.72 after rising as much as 7.8 percent, the most intraday since Aug. 31. The online brokerage that's been unprofitable for two years was upgraded to "buy" from "hold" at Citigroup Inc., which said the company's chance to be acquired is increasing as loan loss trends improve.

Goodyear Tire & Rubber Co. (GT US) jumped 4.4 percent to $18.03 and climbed 8.8 percent earlier for the biggest intraday gain since July 31. The largest

Cooper Tire & Rubber Co. (CTB US) increased 12 percent to $16.27.

Las Vegas Sands Corp. (LVS US) rose 5.6 percent to $17.67 after rallying earlier to $17.77, the highest intraday price since Oct. 9. The casino company controlled by billionaire Sheldon Adelson was upgraded to "buy" from "neutral" at Bank of America Corp.

Nalco Holding Co. (NLC US) gained 5.4 percent to $19.43 and jumped 5.5 percent earlier, the most intraday since May 4. The water treatment and energy services company partially owned by Warren Buffett's Berkshire Hathaway Inc. may rise as the company reduces costs, increases efficiency and expands in growth areas such as Russia, China and India, Barron's reported, citing Richard Burridge, chief executive officer of RMB Capital Management in Chicago.

OfficeMax Inc. (OMX US) sank 5.7 percent to $11.78 after slumping as much s 10 percent, the most intraday since July 2. The third-largest U.S. office supply company was cut to "neutral" from "buy" by Goldman Sachs Group Inc.

Regeneron Pharmaceuticals Inc. (REGN US) slipped 4.2 percent to $20.96 after sinking as much s 8 percent, the most intraday since March 5. The biopharmaceutical company and Sanofi-Aventis (SAN FP) ended a trial of an experimental cancer treatment after an independent committee determined the drug didn't have a survival benefit for patients with pancreatic tumors.

Salix Pharmaceuticals Ltd. (SLXP US) rose the most in Russell 2000 Index, surging 53 percent to $20.44. The Morrisville, North Carolina-based maker of gastrointestinal disease treatments said in a Business Wire statement that its rifamaxin treatment for irritable bowel syndrome showed "statistically significant improvement" in trial participants.

Sealed Air Corp. (SEE US) added 5.9 percent to $20.17 and climbed 6.2 percent earlier, the most intraday since May 4. The maker of Bubble Wrap shipping products was upgraded to "buy" from "underperform" at Bank of America Corp.

The brokerage also raised the rating for Avery Dennison Corp. (AVY US) and Sonoco Products Co. (SON US) to "buy" from "neutral." Shares of Avery, the world's largest label maker gained 4.7 percent to $34.15. Sonoco Products rose 4.7 percent to $28.07.

SuccessFactors Inc. (SFSF US) dropped 5.8 percent to $13.01 and retreated 11 percent earlier, the most intraday since May 5. The employee-management software maker was reduced to "neutral" from "buy" at Janney Montgomery Scott LLC, which cited the stock's valuation.

Sprint Nextel Corp. (S US) had the steepest advance in the Standard & Poor's 500 Index, adding 10 percent to $4.16. Deutsche Telekom AG asked adviser Deutsche Bank AG to study a potential takeover bid for mobile-phone operator Sprint, the Sunday Telegraph reported, citing unidentified people.

Deutsche Telekom spokeswoman Anna Bischof declined to comment on the report. Deutsche Bank spokesman Michael Lermer and Sprint spokesman James Fisher also declined to comment on the newspaper article.

Tenet Healthcare Corp. (THC US) rose the second most in the S&P 500, rallying 9.5 percent to $5.97. The Dallas-based company raised its 2009 earnings forecast, excluding some charges, to $900 million to $950 million, from $810 million to $875 million. Third-quarter results through August were "stronger than anticipated," the company said.

Zoran Corp. (ZRAN US) rose 4.6 percent to $11.19 and climbed 5.6 percent earlier, the most intraday since Aug. 13. Needham & Co. raised the maker of software and chips for digital audio and video products to "buy" from "hold" for the first time since December 2008.