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.
Acme Packet Inc. (APKT US) fell 13 percent, the most since December 2008, to $28.26. The maker of devices to transmit phone calls and video posted second-quarter sales of $53.3 million, in line with analyst estimates in a Bloomberg survey.
Alcatel-Lucent SA (ALU US) increased 15 percent, the most since March 2009, to $2.98. France’s biggest telecommunications equipment maker confirmed its full-year adjusted operating margin target and posted a second-quarter operating profit.
Alcatel-Lucent’s multiyear backhaul deal with AT&T Inc. (T US) could have a “material” impact on Tellabs Inc. (TLAB US), JPMorgan Chase & Co. said.
Tellabs fell 5.6 percent to $6.98.
BioScrip Inc. (BIOS US) sank the most since May 2002, dropping 32 percent to $4.25. The Elmsford, New York-based pharmacy-benefits manager posted second-quarter profit of 7 cents a share excluding some items. Analysts estimated 9 cents on average in a Bloomberg survey.
Chiquita Brands International Inc. (CQB US) climbed 11 percent, the most since Aug. 7, to $14.68. The seller of bananas and other produce reported second-quarter profit excluding some items of $1.40 a share, beating the average analyst estimate by 28 percent, according to Bloomberg data.
Coinstar Inc. (CSTR US) dropped 5.4 percent to $45.50, the biggest decline since June 7. The owner of Redbox movie-rental kiosks said it expects to earn 52 cents a share at most from continuing operations in the third quarter. Analysts, on average, estimated profit of 61 cents, according to a Bloomberg survey.
Conexant Systems Inc. (CNXT US) fell 4.2 percent to $2.06, the lowest price since July 6. The maker of chips for smart phones forecast fourth-quarter core profit of no more than 5 cents a share, compared with the average analyst estimate of 7 cents in a Bloomberg poll.
Constant Contact Inc. (CTCT US) slumped 8.2 percent, the most since April 2009, to $19.49. The seller of e-mail marketing products and online surveys forecast third-quarter profit of 14 cents to 15 cents a share excluding some items. Analysts expect 16 cents on average, according to Bloomberg data.
Expedia Inc. (EXPE US) climbed 7.6 percent, the most in a year, to $22.68. The biggest Internet travel agency reported second-quarter profit excluding some items of 44 cents a share, topping the average analyst estimate by 5.3 percent, according to Bloomberg data.
First Solar Inc. (FSLR US) retreated 7.4 percent, the most since May 6, to $125.45. The world’s biggest maker of solar power modules said second-quarter profit fell as panels were held for use on its own projects, reducing sales to customers, and as the euro declined against the dollar.
Gen-Probe Inc. (GPRO US) rose 6.1 percent, the most since March 2009, to $44.97. The diagnostics test company reported second-quarter earnings excluding some items of 52 cents a share, 5.9 percent more than the average analyst estimate.
Genworth Financial Inc. (GNW US) slumped 14 percent, the most since May 2009, to $13.58. The mortgage guarantor and life insurer is being subpoenaed by New York Attorney General Andrew Cuomo as the state widens a life-insurance fraud probe, said a person briefed on the demands.
Geron Corp. (GERN US) jumped 17 percent, the most since May 2009, to $5.63. The Menlo-Park, California-based biopharmaceutical company said the U.S. Food and Drug Administration lifted a hold it had placed on Geron’s Phase 1 human clinical trial of embryonic stem cell therapy.
Harmonic Inc. (HLIT US) rallied 17 percent, the most since October 2006, to $6.97. The provider of video-delivery systems said it expects sales of at least $95 million in the third quarter. That topped the average analyst estimate of $93.8 million in a Bloomberg survey.
ITT Corp. (ITT US) dropped 5.6 percent, the most since Oct. 30, to $47.12. The maker of military night vision goggles reduced its sales forecast, projecting a 2 percent increase this year.
LodgeNet Interactive Corp. (LNET US) fell 18 percent, the most since June 2009, to $3.60. The provider of television and Internet access for the hotel industry forecast third-quarter sales of $116 million to $120 million, compared with the average analyst estimate of $120.5 million, according to a Bloomberg survey.
Louisiana-Pacific Corp. (LPX US) sank 9 percent to $7.28, for its biggest decline since June 21. The world’s largest maker of pressed-wood panels posted second-quarter profit of 17 cents a share excluding some items compared with the average of 19 cents analysts expected in a Bloomberg survey.
McAfee Inc. (MFE US) gained 9.4 percent, the most since October 2008, to $33.10. The second biggest maker of security software reported second-quarter profit that topped analysts’ estimates and said it agreed to buy Tencube, a provider of the WaveSecure mobile security service.
Merck & Co. (MRK US) had the second-biggest decline in the Dow Jones Industrial Average, losing 1.7 percent to $34.46. The second-largest U.S. drugmaker reported second-quarter revenue of $11.35 billion, trailing the average analyst estimate of $11.42 billion in a Bloomberg survey.
MEMC Electronic Materials Inc. (WFR US) sank 15 percent to $9.56 for the biggest loss in the Standard & Poor’s 500 Index. The maker of silicon wafers for solar modules and semiconductors reported second-quarter profit excluding some items of 2 cents a share, trailing the average analyst estimate by 77 percent, according to Bloomberg data.
Micron Technology Inc. (MU US) fell 6.4 percent to $7.28, the lowest price since Nov. 20. Chief Executive Officer Steve Appleton sold 103,385 shares in the biggest U.S. maker of computer-memory chips this week, according to regulatory filings.
Network Equipment Technologies Inc. (NWK US) slid 17 percent, the most since Oct. 22, to $3.12. The maker of communication equipment posted a second-quarter loss of 23 cents a share excluding some items, compared with the 8 cent loss Needham & Co. Inc. analyst Greg Mesniaeff estimated in a Bloomberg survey.
NutriSystem Inc. (NTRI US) dropped 12 percent, the most since March 2, to $19.56. The provider of prepared meals to help clients lose weight forecast third-quarter earnings of 26 cents a share. That’s lower than the 34-cent average of analyst estimates compiled by Bloomberg.
Power-One Inc. (PWER US) surged 25 percent to $12.43, the highest price since March 2004. The maker of power-conversion products for communications equipment reported second-quarter profit excluding some items of 18 cents a share, exceeding the average analyst estimate by 84 percent.
TeleCommunication Systems Inc. (TSYS US) slumped 17 percent to $3.59, the biggest retreat since September 2002. The maker of satellite systems posted second quarter earnings per share excluding some items that missed the average estimate of analysts in a Bloomberg survey by 47 percent.
TeleNav Inc. (TNAV US) fell the most since it went public in May, sliding 39 percent to $5.44. The provider of navigation and search services for mobile devices that had its initial public offering in May was cut to “neutral” from “overweight” at JPMorgan Chase & Co., which said contract roll-over negotiations with Sprint Nextel Corp. started early and probably will lead to a reduction in revenue.
Thoratec Corp. (THOR US) retreated 14 percent, the most since February 2006, to $36.78. The maker of implantable heart devices forecast full-year sales of $385 million at most, trailing the $399 million average estimate from analysts.
Volcom Inc. (VLCM US) plunged 15 percent, the most since October 2007, to $16.27. The skateboard-apparel maker said it broke even excluding some items in the second quarter, missing the average analyst estimate of a profit of 5 cents a share. The stock was cut to “hold” from “buy” at Needham & Co. Inc.