Shares of the following companies had unusual moves in U.S. trading. Stock symbols are in parentheses. Prices are as of 4 p.m. in New York.
Acacia Research Corp. (ACTG US) rose 19 percent to a record $25.79. The patent-licensing company said it earned 70 cents a share in the third quarter. Craig Hallum Capital Group LLC estimated a loss of 2 cents a share.
Align Technology Inc. (ALGN US) fell 12 percent, the most since November 2008, to $18.15. The maker of a system to straighten teeth said fourth-quarter earnings will be 15 cents to 17 cents a share, trailing the 19-cent average analyst estimate.
American Express Co. (AXP US) slid 3.1 percent to $39.03 for the biggest decline in the Dow Jones Industrial Average. The biggest credit-card issuer by purchases said it remains “cautious” in its view of the economic outlook.
Anadarko Petroleum Corp. (APC US) rose 6.3 percent to $61.51, the highest price since May 4. Cnooc Ltd. of China and Ghana National Petroleum Corp. made a $5 billion bid for the assets of Kosmos Energy LLC in Ghana, including its stake in the Jubilee field in which Anadarko is an investor.
Athenahealth Inc. (ATHN US) climbed 23 percent, the most since August 2008, to $37.42. The provider of Internet-based services posted third-quarter profit excluding some items of 18 cents a share, beating the average analyst estimate by 34 percent, according to Bloomberg data.
BJ’s Restaurants Inc. (BJRI US) jumped 18 percent to $33.94, the highest price since it went public in October 1996. The operator of pubs and pizzerias posted third-quarter earnings excluding some items of 22 cents a share, topping the average analyst estimate by 44 percent.
Brookdale Senior Living Inc. (BKD US) rose the most in the Russell 1000 Index, surging 19 percent to $19.77. Ventas Inc.’s (VTR US) agreement to buy Atria Senior Living Group’s real estate assets for $3.1 billion “demonstrates how undervalued BKD is in the market,” Frank G. Morgan, an analyst with RBC Capital Markets Corp., wrote in a note.
Cheesecake Factory Inc. (CAKE US) rose 7.9 percent, the most since May 2009, to $29.20. The restaurant chain said third-quarter earnings were 37 cents a share, which topped analysts’ average estimate of 34 cents.
Chipotle Mexican Grill Inc. (CMG US) gained 15 percent to $205.77, the highest price since it went public in January 2006. The burrito chain spun off from McDonald’s Corp. in 2006 reported third-quarter adjusted earnings of $1.52 a share, topping analysts’ average estimate of $1.31.
Clarient Inc. (CLRT US) rose the most in the Russell 2000 Index, surging 33 percent to $4.98. The provider of technologies and services for cancer treatment agreed to be bought by General Electric Co.’s health-care unit in a deal that values the company at about $580 million.
Compuware Corp. (CPWR US) had the biggest gain in the Standard & Poor’s 500 Index, climbing 12 percent to $9.92. The business software maker reported second-quarter profit of 12 cents a share, beating the average analyst estimate by 1 cent.
Cytec Industries Inc. (CYT US) declined 15 percent, the most since September 2001, to $51.67. The U.S. chemical manufacturer reported third-quarter profit excluding some items of 80 cents a share, trailing the 85-cent average estimate from a Bloomberg survey of analysts.
Dover Corp. (DOV US) fell 2.9 percent, the most since Aug. 11, to $53.18. The parent of more than 30 companies that make products from hearing-aid components to gasoline nozzles boosted its 2010 adjusted earnings forecast to $3.50 to $3.55 a share, higher than the average analyst estimate of $3.24. The company said full-year revenue will grow 20 percent to 21 percent.
FirstEnergy Corp. (FE US) fell 4.6 percent, the most since May 2009, to $37.52. The Akron, Ohio-based electric utility may experience declines in prices paid for electricity after results from a power auction were below some estimates, Marc De Croisset, an analyst at FBR Capital Markets, said in a report.
Allegheny Energy Inc. (AYE US), whose takeover by FirstEnergy is pending, fell 4.9 percent to $23.74.
Fortinet Inc. (FTNT US) advanced 20 percent to $29.63, the highest price since its initial public offering in November 2009. The network-security systems maker posted third-quarter profit excluding some items of 17 cents a share, beating the average analyst estimate by 60 percent, according to Bloomberg data.
Great Atlantic & Pacific Tea Co. (GAP US) rose 15 percent, the most since July 29, to $3.35. The grocer said during a conference call with analysts that it will take “weeks, not months” to complete negotiations on a new term loan.
Leggett & Platt Inc. (LEG US) fell the most in the S&P 500, dropping 8.6 percent to $21.01. The maker of lumbar supports for car seats cut the high end of its profit forecast, saying it expects to earn $1.20 a share at most this year. Analysts, on average, estimated $1.27, according to a Bloomberg survey.
Nvidia Corp. (NVDA US) rose 6.4 percent to $11.80 for the third-biggest gain in the S&P 500. The second-largest maker of graphics chips rallied on speculation it is a takeover target, said analysts including Patrick Wang of Wedbush Securities and Nicholas Aberle of Janney Montgomery Scott LLC.
Polycom Inc. (PLCM US) advanced 11 percent, the most since October 2008, to $32.53. The largest independent maker of videoconferencing systems said third-quarter adjusted earnings were 38 cents a share, versus the 36 cents estimated by analysts.
Riverbed Technology Inc. (RVBD US) gained 18 percent to $54.27, the highest intraday price since it went public in September 2006. The maker of computer backup and networking equipment reported third-quarter adjusted earnings of 34 cents a share, beating the 28-cent average analyst estimate. The company was raised to “outperform” from “neutral” at Wedbush Securities Inc.
Schlumberger Ltd. (SLB US) rose 5.4 percent, the most since June 10, to $67.77. The largest oilfield services provider is considering buying back some of the 176 million shares it issued to buy Smith International Inc. this year, its chief executive officer said today.
Wilmington Trust Corp. (WL US) gained 8.6 percent, the most since September 2009, to $8.76. The Delaware bank founded by the du Pont family, has been contacting bigger lenders in recent weeks to gauge their interest in buying the company, people with knowledge of the matter said.