Aug. 4 (Bloomberg) -- Shares of the following companies had unusual moves in U.S. trading today. Stock symbols are in parentheses, and prices are as of 4 p.m. in New York.
Anadarko Petroleum Corp. (APC US) rallied 4.3 percent to $55.42, the highest price since May 27. The Texas oil company that owns a stake in BP Plc’s damaged Gulf of Mexico well reported second-quarter profit of 49 cents a share, beating the average analyst estimate by 34 percent, according to Bloomberg data.
Other oil services companies rose after reporting earnings that beat estimates. Approach Resources Inc. (AREX US) surged 28 percent to $8.95. World Fuel Services Corp. (INT US) climbed 14 percent to $28.99. Stone Energy Corp. (SGY US) gained 14 percent to $13.90. Devon Energy Corp. (DVN US) gained 2.1 percent to $65.68.
Barnes & Noble Inc. (BKS US) surged 19 percent to $15.31 for the second-biggest advance in the Russell 2000 Index. The largest U.S. bookstore chain said that Leonard Riggio, founder and its largest stockholder, may consider participating in an investor group to acquire the company.
DepoMed Inc. (DEPO US) climbed 15 percent, the most since Oct. 5, to $3.26. The Menlo Park, California-based developer of a treatment for hot flashes said it expects “a potential approval” of DM-1796 in the first quarter.
Drugstore.com Inc. (DSCM US) dropped 28 percent to $2.04 for the biggest decline in the Russell 2000 Index. The online health and beauty store reported a second-quarter profit of 1 cent a share excluding some items, missing the average estimate of 2 cents, according to a Bloomberg survey of two analysts.
Electronic Arts Inc. (ERTS US) jumped 7 percent, the most since April 2009, to $17.38. The second-largest video-game publisher posted an unexpected $96 million first-quarter profit on better-than-expected sales of titles including “2010 FIFA World Cup South Africa.”
ESCO Technologies Inc. (ESE US) advanced 13 percent to $34.01 for the biggest gain since July 22. The provider of purpose communication systems was raised to “sector perform” from “underperform” at RBC Capital Markets.
Leap Wireless International Inc. (LEAP US) dropped 14 percent, the most since May 7, to $9.92. The pay-as-you-go mobile-phone carrier reported a second-quarter loss of 22 cents, missing the average analyst estimate of 20 cents, according to a Bloomberg survey.
Lumber Liquidators Holdings Inc. (LL US) slumped 5.1 percent, the most since July 16, to $23.33. The discount seller of hardwood flooring forecast profit excluding some items this year to be between $1.13 and $1.23 a share, compared with the average analyst estimate of $1.21 in a Bloomberg survey.
Motorola Inc. (MOT US) rose 5.8 percent, the most since Feb. 12, to $8.06. Carl Icahn, an activist investor who has called for the breakup of the handset maker, has again raised his stake in the telecommunications and electronics company. Icahn raised his shareholding to 9.99 percent from 8.75 percent in May, according to a U.S. regulatory filing dated yesterday. The billionaire investor held 5.15 percent of Motorola at the end of last year.
Owens Corning Inc. (OC US) dropped 7 percent, the most since May 20, to $29.35. The largest U.S. maker of insulation reported second-quarter profit of 57 cents a share, excluding some items, 3.9 percent short of the average of 9 analysts’ estimates in a Bloomberg survey.
OpenTable Inc. (OPEN US) jumped 8.3 percent to $48.89, the highest price since going public in May 2009. The restaurant-reservation service posted second-quarter profit of 15 cents a share excluding some items. Analysts were expecting 12 cents on average according to data compiled by Bloomberg.
Pitney Bowes Inc. (PBI US) fell the most in the Standard and Poor’s 500 Index, slumping 16 percent to $21. The world’s largest maker of postal meters reduced its full-year forecast, saying it expect earnings excluding some items of $2.30 a share at most.
Polo Ralph Lauren Corp. (RL US) gained 7.8 percent, the most since May 10, to $85.47. The designer of Chaps and Club Monaco clothing had first-quarter earnings of $1.21 a share, beating the average analyst estimate in a Bloomberg survey by 34 percent.
Priceline.com Inc. (PCLN US) jumped 22 percent to $281.30 for the biggest gain in the S&P 500 Index. The second-biggest online travel agency forecast third-quarter earnings excluding some items of at least $4.78 a share, beating the average analyst estimate of $4.18 from a Bloomberg survey.
Expedia Inc. (EXPE US), the biggest Internet travel agency, gained 6.4 percent to $24.32.
Quanta Services Inc. (PWR US) retreated 5.4 percent, the most since Jan. 14, to $20.29. The provider of utility network infrastructure lowered its 2010 earnings forecast to no more than $1.10 a share from the previous projection of as much as $1.16.
RehabCare Group Inc. (RHB US) plunged 13 percent to $18.75, the lowest price since Oct. 30. The rehabilitation-services provider reported second-quarter profit of 60 cents, missing the average estimate by 2.8 percent, according to a Bloomberg survey of seven analysts.
Super Micro Computer Inc. (SMCI US) dropped 25 percent, the most since it went public in 2007, to $10.10. The maker of computer servers and accessories projected first-quarter earnings of as little as 21 cents, below the average estimate of 23 cents in a Bloomberg survey of four analysts.
Schawk Inc. (SGK US) jumped 16 percent, the most since Nov. 10, to $17.20. The provider of digital imaging prepress services reported second-quarter profit of 40 cents, beating the average estimate of two analysts surveyed by Bloomberg by 25 percent.
Titanium Metals Corp. (TIE US) dropped 11 percent to $20.09 for the biggest decline since June 2009. The Dallas-based supplier of the lightweight metal to Boeing Co. reported second-quarter sales of $212 million, missing the average estimate of three analyst estimates by 5.4 percent, according to Bloomberg data.
Westlake Chemical Corp. (WLK US) gained 12 percent to $28.35, the highest price since May 3. The maker of vinyl and plastics posted second-quarter profit excluding some items of 86 cents a share compared with the 50-cent average analyst estimate, according to data compiled by Bloomberg.
Whole Foods Market Inc. (WFMI US) fell 8.4 percent, the most since Nov. 5, to $36.16. The organic-foods grocer predicted fourth-quarter earnings of 27 cents to 29 cents a share. Analysts, on average, estimated 29 cents, according to a Bloomberg survey.
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