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.
American Medical Systems Holdings Inc. (AMMD US) rose 23 percent, the most since July 2002, to $21.47. The supplier of medical devices to physicians specializing in the treatment of urological disorders was upgraded to “buy” from “hold” at Stifel Nicolaus and to “strong buy” from “outperform” at Raymond James. The company reported first-quarter profit yesterday that beat analysts’ expectations.
Central European Media Enterprises Ltd. (CETV US) slid 21 percent, the most since November 2008, to $26. The owner of television stations in central and eastern Europe reported a first-quarter loss excluding some items of 57 cents a share, 74 percent wider than the average analyst estimate in a Bloomberg survey.
Cliffs Natural Resources Inc. (CLF US) rose 7.7 percent to $58.73 for the biggest advance in the S&P 500. Prices for iron ore pellets, the company’s main product in North America, are likely to increase 130 percent from the 2009 price for the April-to-June period, Michael Gambardella, an analyst at JPMorgan Chase & Co. in New York, said in a report today.
Comfort Systems USA Inc. (FIX US) slumped 15 percent, the most since August 2002, to $12.10. The maker of commercial heating, ventilation and air-conditioning systems posted first-quarter profit excluding some items of 13 cents a share, trailing the average analyst estimate by 77 percent.
Cray Inc. (CRAY US) fell 12 percent, the most since March 5, to $5.90. The Seattle-based maker of supercomputers forecast second-quarter sales of $30 million, missing the average analyst estimate of $47.6 million in a Bloomberg survey.
DG Fastchannel Inc. (DGIT US) jumped 13 percent to $40.50, the highest price since June 2001. The operator of an electronic network linking advertising agencies with television and radio stations reported first quarter profit excluding some items of 41 cents a share, topping the 19-cent average analyst estimate compiled by Bloomberg.
Esco Technologies Inc. (ESE US) advanced 13 percent, the most since December 2008, to $32.40. The provider of special-purpose communication systems for utility services was raised to “accumulate” from “hold” at Ardour Capital.
Garmin Ltd. (GRMN US) dropped 8.8 percent, the most since Nov. 4, to $34.19. The maker of portable navigation devices reported first-quarter profit excluding some items of 38 cents a share. Analysts on average predicted 42 cents, according to a Bloomberg survey.
Guess? Inc. (GES US) declined 4.9 percent to $41.68, falling for a second day. The clothing maker said President and Chief Operating Officer Carlos Alberini will step down from the posts, effective June 1. Alberini will become co-chief executive officer of Restoration Hardware.
Intercontinental Exchange Inc. (ICE US) rose 4.9 percent, the most since Oct. 16, to $118.98. The second-largest U.S. futures market said first-quarter profit rose 40 percent on record volume led by energy contracts. Net income climbed of $1.36 a share compared with an average analyst estimate of $1.31 in a Bloomberg survey.
InterMune Inc. (ITMN US) plunged 75 percent to $11.38 for the biggest retreat in Russell 2000 Index. The drugmaker said it failed to win U.S. approval for a lung treatment that analysts estimated would bring in more than $1 billion in annual sales.
Kforce Inc. (KFRC US) rose 5.9 percent, the most since Jan. 7, to $14.79. The recruitment company forecast profit of as much as 13 cents a share in the second quarter. Analysts, on average, estimated 10 cents, according to a Bloomberg survey.
Lance Inc. (LNCE US) declined 15 percent, the most since at least 1980, to $19.97. The maker of Cape Cod potato chips reduced its full-year forecast after first-quarter results trailed analysts’ estimates. BB&T Capital Markets and Janney Montgomery Scott LLC downgraded the stock.
Myriad Genetics Inc. (MYGN US) lost 23 percent, the most since July 1, to $18.49. The maker of a test for detecting inherited breast cancer forecast 2010 profit of 1.35 a share at most, trailing the average analyst estimate of $1.49.
Neutral Tandem Inc. (TNDM US) fell 13 percent, the most since its initial offering in 2007, to $14.09. The provider of tandem interconnection services for wireless and cable telephone carriers reported first-quarter profit of 25 cents a share, trailing analysts’ estimates.
News Corp. (NWSA US) had the third-biggest drop in the Standard & Poor’s 500 Index, erasing 5.2 percent to $14.60. The owner of the Twentieth Century Fox film studio predicted fiscal fourth-quarter operating income will be lower than a year ago.
RehabCare Group Inc. (RHB US) climbed 7.8 percent, the most since Nov. 4, to $30.37. The rehabilitation-services provider reported first-quarter earnings excluding some items of 61 cents a share, topping the average analyst estimate by 22 percent.
R.R. Donnelley & Sons Co. (RRD US) gained 1.7 percent to $21.37, the biggest gain since April 29. North America’s largest printer reported first-quarter profit excluding some items of 33 cents a share, beating the average analyst estimate by 11 percent.
Spongetech Delivery Systems Inc. (SPNG US) plunged 83 percent to less than 1 cent. Two top officers of the maker of SpongeBob SquarePants soap-filled bath sponges for children were arrested and charged with conspiracy to commit securities fraud. The men were also charged with obstruction of justice and were sued separately by the U.S. Securities and Exchange Commission. The company didn’t immediately respond to a voice-mail message seeking comment.
Syniverse Holdings Inc. (SVR US) gained 4.9 percent, the most since March 29, to $20.50. The provider of technology to mobile-phone companies boosted its full-year forecast after first-quarter profit exceeded analysts’ estimates.
Wabco Holdings Inc. (WBC US) had the third-biggest gain in the Russell 1000 Index, climbing 5.5 percent to $35. The supplier of truck braking and suspension systems increased its 2010 sales forecast, saying it expects revenue to grow as much as 28 percent.
Williams Cos. (WMB US) fell 4.8 percent, the most since Feb. 4, to $22.22. The natural-gas producer lowered the midpoints of its profit forecasts for 2010 and 2011 profit mainly because of lower natural gas price assumptions, Jonathan LeFebvre, an analyst at Wells Fargo Securities LLC in New York, said.
XL Capital Ltd. (XL US) rose 4.8 percent, the most since Oct. 29, to $17.99. The Bermuda-based insurer said first-quarter profit surged more than analysts expected on improved investment results.