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.
Aecom Technology Corp. (ACM:US) slumped 13 percent, the most since October 2008, to $19.60. The Los Angeles, California- based architectural and engineering company reduced its full- year profit forecast to $2.45 a share at most. Analysts, on average, estimated $2.53, according to a Bloomberg survey.
Allstate Corp. (ALL:US) rose 4 percent to $34.23, the highest price since May 2011. The largest publicly traded U.S. home and auto insurer said first-quarter profit rose 46 percent as costs tied to natural disasters declined.
Apache Corp. (APA:US) fell 3.8 percent, the most since Dec. 14, to $91.96. The largest U.S. independent oil and natural-gas producer by market value reported first-quarter earnings excluding some items of $3 a share, missing the average analyst estimate of $3.07.
Atlantic Tele-Network Inc. (ATNI:US) gained 18 percent, the most since June 2009, to $39.71. The telecommunications services provider reported first-quarter net income per share that beat the average analyst estimate by 36 percent.
Atmel Corp. (ATML:US) fell 13 percent, the most since Aug. 4, to $7.79. The maker of chips for household appliances forecast second-quarter sales will grow 6 percent at most. Analysts estimated an increase of 8 percent.
Cablevision Systems Corp. (CVC:US) fell 7.9 percent, the most since Feb. 28, to $13.54. The fifth-largest U.S. cable provider by subscribers said discounting led to bigger drop in cash flow than some analysts estimated.
CACI International Inc. (CACI:US) slid 16 percent, the most since April 2002, to $51.52. The provider of professional services and technology consulting to the U.S. government reduced its annual sales forecast.
Callidus Software Inc. (CALD:US) fell 21 percent, the most since June 2004, to $6.10. The Pleasanton, California-based software company reported a first-quarter loss wider than analysts projected and said second-quarter revenue would be $22.5 million to $23.5 million. Analysts project $23.52 million on average, according to data compiled by Bloomberg.
Green Mountain Coffee Roasters Inc. (GMCR:US) plummeted 48 percent, the most in the Russell 1000 Index, to $25.87. The maker of Keurig coffee machines said profit this year will be less than it previously expected amid the slowest sales growth in five years.
Health Net Inc. (HNT:US) tumbled 25 percent, the most since 1992, to $27.26. The insurer said 2012 earnings would be lower than forecast as a change in the way claims are processed required that more money be set aside to pay them.
Kensey Nash Corp. (KNSY:US) surged 32 percent to $38.33, the highest price since it went public in 1995. The medical device maker agreed to be bought by Royal DSM NA for $360 million in cash, or $38.50 a share.
Kit Digital Inc. (KITD:US) tumbled 30 percent to $4.42, the lowest price since December 2008. The maker of online video software reported first-quarter sales of $59 million, trailing the average analyst estimate of $72.4 million in a Bloomberg survey.
MicroStrategy Inc. (MSTR:US) rose 10 percent, the most since January 2011, to $156.24. The maker of analytical software reported first-quarter sales that exceeded analysts’ estimates.
Multimedia Games Inc. (MGAM:US) rallied 17 percent to $13.71, the highest price since May 2006. The slot machine maker boosted its full-year earnings forecast to at least 72 cents a share. Analysts estimated 46 cents, according to the average estimate in a Bloomberg survey.
Prudential Financial Inc. (PRU:US) lost 10 percent, the most since Aug. 8, to $54.81. The second-biggest U.S. life insurer posted a first-quarter loss as the value of the company’s derivative contracts fell.
Rofin-Sinar Technologies Inc. (RSTI:US) fell 10 percent to $23.12, the lowest price since Dec. 30. The developer of laser- based cutting and welding tools projected third-quarter earnings of no more than 30 cents per share. The average analyst estimate is 37 cents.
Scripps Networks Interactive Inc. (SNI:US) jumped 7.5 percent, the most since Aug. 9, to $54.53. The owner of Food Channel reported first-quarter earnings of 73 cents a share, beating the average analyst estimate by 21 percent, according to data compiled by Bloomberg.
Teradata Corp. (TDC:US) advanced 6.9 percent to $77.14, the highest price since at least September 2007. The data-storage software company increased its 2012 sales and earnings forecasts.
ValueClick Inc. (VCLK:US) declined 22 percent, the most since August 2004, to $16.80. The Internet advertising company forecast second-quarter sales of no more than $160 million, falling short of the average analyst estimate of $167.9 million.
Viacom Inc. (VIAB:US) rallied 3.4 percent, the most since Feb. 3, to $49.02. The owner of the Paramount film studio and MTV, Nickelodeon and Comedy Central cable channels reported fiscal second-quarter earnings that exceeded analysts’ estimates on higher fees from pay-TV systems.
Weight Watchers International Inc. (WTW:US) plunged 18 percent, the most since its initial public offering in 2001, to $62.29. The diet center reported quarterly profit that missed analysts’ estimates, citing challenges in its core meetings business.
Whole Foods Market Inc. (WFM:US) increased 7.6 percent to $90.69 for the biggest gain in the Standard & Poor’s 500 Index. The largest U.S. natural-goods grocer posted second-quarter profit that topped analysts’ estimates on increased demand for organic foods.
Zillow Inc. (Z:US) climbed 12 percent, the most since Aug. 25, to $40.40. The real estate website forecast second-quarter revenue of at least $25.5 million, surpassing the average analyst estimate of $24.8 million.
To contact the reporter on this story: Whitney Kisling in New York at email@example.com.
To contact the editor responsible for this story: Nick Baker at firstname.lastname@example.org