Shares of the following companies had unusual moves in U.S. trading. Stock symbols are in parentheses and prices are as of 4 p.m. in New York.
Boeing Co. (BA US) had the biggest gain in the Dow Jones Industrial Average, climbing 1.5 percent to $67.94. The company secured the biggest order yet in its almost 100-year history after signing a $26 billion agreement with Emirates for as many as 70 777 aircraft that extends the Middle East carrier’s already dominant fleet.
BYD Co. (BYDDY US) surged 19 percent, the most since May 2009, to $5. The maker of the E6 electric car rose after Xinhua News reported China will support the use of alternative-energy vehicles.
Cadence Pharmaceuticals Inc. (CADX US) fell 22 percent to $3.97 for the biggest retreat in the Russell 2000 Index. The biotechnology developer of products for hospitals said it will sell $75 million in shares in a public offering.
Career Education Corp. (CECO US) advanced 7.3 percent to $8.26 for the second-biggest advance in the Russell 1000 Index. The for-profit college that operates Le Cordon Bleu North America cooking schools approved adding $100 million to its buyback program.
Cray Inc. (CRAY US) gained 8.4 percent, the most since Aug. 9, to $6.02. The company won a $188 million contract to build a supercomputer for the University of Illinois. Cray said 2012 revenue will be $340 million to $360 million, compared with Needham & Co.’s estimate of $320 million.
Ctrip.com International Ltd. (CTRP US) dropped 12 percent to $30.07, the lowest price since November 2009. China’s biggest online travel agency reported a third-quarter operating margin and gave a fourth-quarter sales forecast that missed analysts’ projections.
First Marblehead Corp. (FMD US) climbed the most in the Russell 2000 Index, advancing 9.9 percent to $1. The Boston-based private education lending services company sold its variable interests in its National Collegiate Student Loan Trusts to VCG Special Opportunities Master Fund Ltd. for $13 million in cash.
Green Mountain Coffee Roasters Inc. (GMCR US) slipped 3.6 percent to $42.14, resuming its retreat after rebounding for a day following its 39 percent plunge Nov. 10. The biggest U.S. seller of single-serve brewers was cut to “hold” from “buy” at Argus Research Corp., which cited the company’s disappointing earnings and the outlook for future quarters.
QEP Resources Inc. (QEP US) fell the most in the Standard & Poor’s 500 Index, erasing 7.6 percent to $34.21. The oil and gas exploration company forecast 2012 earnings before interest, taxes, depreciation and amortization of no more than $1.55 billion, missing the average analyst estimate of $1.62 billion.
Salesforce.com Inc. (CRM US) increased 2.8 percent to $133.52 in the biggest advance for the S&P 500. The supplier of online customer-management software was raised to “buy” from “neutral” at Citigroup, which cited “increasing confidence in long-term profitability.”
Salix Pharmaceuticals Ltd. (SLXP US) fell 9.8 percent, the most since Feb. 24, to $33.85. A Food and Drug Administration staff report questioned whether Salix is studying the proper dose and patient population for Xifaxan, “issues we didn’t think were on the table,” Jefferies Group Inc.’s Corey Davis wrote in a report. The drug is a potential treatment for irritable bowel syndrome.
VeriFone Systems Inc. (PAY US) climbed 9 percent, the most since May 2010, to $44.44. The largest maker of credit-card terminals obtained a $1.6 billion financing commitment to support its purchase of Swedish payment services provider Point.