Shares of the following companies had unusual moves in U.S. trading. Stock symbols are in parentheses. Prices are as of 4:45 p.m. in New York.
A.H. Belo Corp. (AHC US) rose 12 percent to $6.73, the highest price since September 2008. The publisher of the Dallas Morning News posted its first quarterly profit since it was spun off from Belo Corp. in February 2008.
American International Group Inc. (AIG US) rose 4.6 percent to $27.99. MetLife Inc. (MET US) is asking banks to submit commitments for a $5 billion bridge loan, showing that its delayed plan to acquire an AIG unit is more likely to go through, according to Robert Haines of CreditSights Inc.
Autodesk Inc. (ADSK US) rose the most in the S&P 500, gaining 8.7 percent to $27.89. The maker of engineering-design software reported fourth-quarter earnings excluding some items of 30 cents a share, beating the average analyst estimate by 29 percent.
BGC Partners Inc. (BGCP US) climbed 18 percent, the most since May 14, to $5.03. The broker specializing in over-the-counter trading forecast first-quarter revenue of $340 million at least, topping the $294 million estimated by Raymond James Financial Inc.
Bowne & Co. (BNE US) soared 60 percent to $11.15 for the biggest advance in Russell 2000 Index. R.R. Donnelley & Sons Co. (RRD US) is buying the prospectus and financial-reports printer for $481 million in cash, the companies said. The deal values Bowne at $11.50 a share.
Carnival Corp. (CCL US) increased 6.3 percent to $35.80, the highest price since October 2008. The biggest cruise-line operator said one of its brands will increase prices by as much as 5 percent next month because of record bookings.
Royal Caribbean Cruises Ltd. (RCL US), the second-largest cruise operator, advanced 7.5 percent to $27.71.
Century Aluminum Co. (CENX US) dropped 10 percent, the most since Jan. 21, to $11.42. The second-largest U.S. producer of the metal reported a fourth-quarter loss of 28 cents a share.
Clean Harbors Inc. (CLH US) fell 9.1 percent, the most since October 2008, to $53.49. The provider of waste management services said its profit margin this year will be lower than it previously anticipated.
Dollar Tree Inc. (DLTR US) rose 12 percent to $55.78, the highest price since it went public in March 1995. The biggest retailer of items costing $1 or less forecast first-quarter profit excluding some items of 77 cents to 85 cents a share. Analysts, on average, estimated 75 cents, according to a Bloomberg survey.
Dycom Industries Inc. (DY US) jumped 13 percent, the most since May 20, to $9.31. The provider of contract services to phone and cable companies said it plans to buy back as much as $20 million of its shares.
Genworth Financial Inc. (GNW US) increased 3.3 percent to $15.77, the highest price since September 2008. The mortgage and life insurer will benefit from a drop in delinquency rates and its mortgage-insurance unit may post quarterly profits by mid-2011, Chief Executive Officer Michael Fraizer said.
H&R Block Inc. (HRB US) fell the most in the S&P 500, slumping 12 percent to $17.32. The U.S. tax preparer said its previously announced forecast for fiscal 2010 will not be reached as the number of same-store tax return filings fell through Feb. 15 compared with the prior-year period.
Kindred Healthcare Inc. (KND US) slipped 9.2 percent, the most since May 6, to $17.02. The largest U.S. operator of hospitals for patients needing long-term care was downgraded to “sector perform” from “outperform” at RBC Capital Markets, which cited the “reimbursement risk inherent in any business with high exposure to government-sponsored plans.”
Micron Technology Inc. (MU US) rose 5.6 percent, the most since Dec. 23, to $9.09. The biggest U.S. producer of computer memory may gain after rival Samsung Electronics Co. (005930 KS), said it may not boost output because of uncertainty about demand, JMP Securities LLC analysts wrote in a report.
Millipore Corp. (MIL US) climbed 5.6 percent to $93.84, its highest level since it went public in 1982, for the third- biggest gain in the S&P 500. The supplier of drug-development equipment confirmed it hired Goldman Sachs Group Inc. to solicit bidders for a possible merger or sale, and said it had no “definitive timetable” for the auction.
Pactiv Corp. (PTV US) increased 5.5 percent, the most since July 15, to $23.99. The maker of Hefty garbage bags agreed to acquire PWP Industries for $200 million and said it will increase its share buyback by $10 million.
Papa John’s International Inc. (PZZA US) rose 7.2 percent, the most since Dec. 15, to $24.88. The third-largest U.S. pizza maker posted fourth-quarter earnings excluding some items of 41 cents a share, topping the 38-cent average estimate from analysts in a Bloomberg survey.
Premiere Global Services Inc. (PGI US) plunged 11 percent, the most since July 24, to $7.43. The provider of business communications and data services forecast earnings excluding some items of 75 cents at most for 2010. Analysts had on average estimated 87 cents, according to a Bloomberg survey.
Salix Pharmaceuticals Ltd. (SLXP US) surged 20 percent, the most since Sept. 14, to $29.21. The maker of gastrointestinal disease treatments won a U.S. panel’s backing to expand use of its biggest medicine, Xifaxan, over concerns from regulators that the drug wasn’t tested adequately.
Stec Inc. (STEC US) plunged 23 percent to $10.27 for the biggest drop in Russell 2000 Index. The maker of flash-memory drives forecast a first-quarter adjusted loss of 11 cents to 13 cents a share. On average, the analysts surveyed by Bloomberg estimated profit of 23 cents. JPMorgan Chase & Co. cut the shares to “neutral” from “overweight.”
Verigy Ltd. (VRGY US) fell 5.4 percent to $10.26, the lowest price since Nov. 27. The maker of semiconductor-testing equipment forecast second-quarter results ranging between a loss of 8 cents a share and earnings of 1 cent a share, excluding some items. On average, the analysts surveyed by Bloomberg estimated earnings of 2 cents.
Zale Corp. (ZLC US) increased 8.6 percent to $2.78, the highest price since Jan. 20. The jewelry retailer reported its first quarterly profit in two years, helped by a tax benefit and a smaller sales decline.