Stocks on the Move: AmEx, Boeing, DuPont, Moody's

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LDK Solar Co. (LDK) climbed 9.8 percent to $9.20 after rising earlier to $9.35, the highest intraday price since Sept. 23. The Chinese manufacturer of polysilicon wafers said it ended a contract dispute with Q-Cells SE and reached an agreement to extend sales terms through 2018.

Goodyear Tire & Rubber Co. (GT) rose 6 percent to $14.47 after rising as much as 6.7 percent, the most intraday since Nov. 13. The largest U.S. tiremaker will likely top analysts estimates for fourth-quarter earnings and investors should buy the stock, JPMorgan Chase & Co. said.

Marvell Technology Group Ltd. (MRVL) added 8.6 percent to $17.95 and advanced earlier to $18.20, the highest intraday price since June 2008. The maker of chips for computers and mobile phones reported earnings excluding some items of 35 cents a share for the third quarter, 34 percent more than the average analyst estimate in a Bloomberg survey.

Moody's Corp. (MCO) rose 6.9 percent to $25.17 and increased earlier to $25.76, the highest intraday price since Sept. 16. the company, whose founder John Moody created credit ratings in 1909, was rated "buy" and given a price estimate of $28 in new coverage at Bank of America Corp., which cited the outlook for growth in credit markets.

Smith & Wesson Holding Corp. (SWHC) dropped 17 percent to $4.40 after slumping as much as 18 percent, the most intraday since December 2008. The gun maker forecast third-quarter sales of $95 million at most, trailing the average analyst estimate of $104.5 million, according to Bloomberg data.

Southwest Airlines Co. (LUV) rose 6.5 percent to $10.13 after jumping as much as 7.1 percent, the most intraday since April 28. The biggest low-fare airline said it flew 5.9 billion revenue passenger miles in November, a 12 percent increase from a year earlier.

Steris Corp. (STE) slumped 20 percent to $26.72 and tumbled 23 percent earlier, the most intraday since April 1999. The company's STERIS System 1 Processor, a sterilization product for use in hospitals, has caused injuries and should be replaced "as soon as possible," the U.S. Food and Drug Administration said on its Web site.

Take-Two Interactive Software Inc. (TTWO) plunged 31 percent to $7.50 and tumbled 36 percent earlier, the most intraday since December 2001. The maker of the "Grand Theft Auto" video games forecast a loss of at least 40 cents a share in the fiscal first quarter. That's wider than the average 26- cent loss estimated by analysts in a Bloomberg survey.

Western Gas Partners LP (WES) dropped 4.6 percent to $18.10 and sank 5.1 percent earlier, the most intraday since Nov. 2. The natural-gas pipeline owner and processor sold 6 million common units at $18.20 each. More units may dilute the value of existing equity.

To contact the reporter on this story: Lu Wang in New York at lwang8@bloomberg.net

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