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.
Video-game companies declined after NPD Group Inc. reported retail sales of game hardware, software and accessories tumbled 34 percent in January.
Amtech Systems Inc. (ASYS) tumbled 18 percent, the most since Aug. 10, to $9.28. The maker of products for manufacturing computer chips and solar cells forecast second-quarter sales of $22 million at most, trailing the average analyst estimate of $25.7 million in a Bloomberg survey.
Amyris Inc. (AMRS) fell 28 percent, the most since it went public in September 2010, to $6.99. The renewable products company withdrew its 2012 forecast for production and cash flow and said it will raise as much as $60 million in a stock offering.
Arch Coal Inc. (ACI) slid 7.6 percent, the most since Jan. 13, to $14.39. The coal mining company said it will cut jobs in eastern Kentucky and 2012 output will be 5 million tons lower after U.S. power utilities reduced demand for the fuel.
Brooks Automation Inc. (BRKS) rallied 6.8 percent to $12.06, the highest price since May 12. The supplier of equipment for microchip factories forecast second-quarter earnings excluding some items of at least 15 cents a share, beating the average analyst estimate of 12 cents.
CBOE Holdings Inc. (CBOE) added 6 percent, the most since Sept. 7, to $28.07. The biggest U.S. options market by volume will replace Temple-Inland Inc. (TIN US) in the Standard & Poor’s MidCap 400 index on a date to be announced, S&P said.
Cobalt International Energy Inc. (CIE) surged 33 percent, the most in the Russell 1000 Index, to $31.68. The Houston-based deep-water oil explorer, whose biggest investors include Goldman Sachs Group Inc., said test results at an oil discovery off Angola were better than the company expected.
Exide Technologies (XIDE) dropped 24 percent the most since Nov. 8, to $3.03. The producer of lead-acid batteries said its 2012 operating income will be less than previously forecast because of an economic slowdown.
First Solar Inc. (FSLR) had the biggest retreat in the Standard & Poor’s 500 Index, tumbling 10 percent to $43.91. The biggest maker of thin-film solar panels was cut to “neutral” from “buy” at Collins Stewart LLC after permitting issues delayed a U.S. loan guarantee for a power plant in California.
GSE Holding Inc. (GSE) (GSE US) surged 24 percent to $11.50 in its first day of trading. The manufacturer of containment products for environmental protection priced 7 million shares at $9 in an initial public offering.
GSV Capital Corp. (GSVC) (GSVC US) slumped 22 percent, the most since it went public in April, to $15.30. The Woodside, California-based investment company doubled a planned stock offering to 6 million shares, according to a regulatory filing.
LinkedIn Corp. (LNKD) (LNKD US) jumped 18 percent, the most since May 19, to $89.96. The biggest professional-networking website reported fourth-quarter sales that more than doubled and profit that topped analysts’ estimates as advertising and subscription revenue increased.
Nuance Communications Inc. (NUAN) dropped 13 percent, the most since August 2006, to $26.50. The developer of voice- command technology reported first-quarter earnings and revenue that trailed analysts’ estimates on deferred sales in its mobile segment.
NYSE Euronext (NYX) rallied 4.5 percent to $28.94 for the biggest advance on the S&P 500. The operator of the New York Stock Exchange, which was prevented last week from merging with Deutsche Boerse AG, reported fourth-quarter earnings of 50 cents a share, excluding some items, beating the 48-cent average estimate of 16 analysts surveyed by Bloomberg.
Overseas Shipholding Group Inc. (OSG) decreased 14 percent, the most since Nov. 22, to $10.18. The largest U.S. crude-tanker owner suspended its dividend and said the pool in which its ships operate will no longer go to Iran after the European Union agreed to an embargo on oil from the Persian Gulf nation.
RPX Corp. (RPXC) (RPXC US) surged 11 percent, the most since May 4, to $19.13. The licensing syndicate will offer access to the patents of Alcatel-Lucent, France’s largest telecommunications- equipment maker and the latest technology company to announce plans to make money from its patents.
True Religion Apparel Inc. (TRLG) plunged 28 percent, the most since May 2003, to $26.61. The seller of jeans’ 2012 earnings and revenue forecasts missed the average estimate of analysts surveyed by Bloomberg.
XL Group Plc (XL) slid 8.3 percent to $19.27 for the second-biggest loss in the S&P 500. The insurer and reinsurer reported a fourth-quarter loss of 25 cents a share, compared with the average analyst estimate for a profit of 15 cents, data compiled by Bloomberg show.
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