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 unless noted otherwise.
Regional banks advanced after Credit Suisse Group AG increased its price estimate for Regions Financial Corp. (RF US) to $8 from $7 and said SunTrust Banks Inc. (STI US) may be a takeover target by overseas financial companies.
Regions rose 4.4 percent to $8.55. SunTrust gained 3.5 percent to $28.71. Zions Bancorporation (ZION US) climbed 4.6 percent to $24.27. Huntington Bancshares Inc. (HBAN US) added 4.7 percent to $5.85. Marshall & Ilsley Corp. (MI US) increased 5.9 percent, the most in the Standard & Poor's 500 Index, to $8.81.
AutoNation Inc. (AN US) gained 3.4 percent to $18.65, the biggest increase since March 23. The largest U.S. new-car dealer said first-quarter profit from continuing operations was as much as 35 cents a share, higher than its previous projection of 32 cents at most.
Bally Technologies Inc. (BYI US) fell 4.3 percent, the most since March 4, to $40.51. The gaming-technology company lowered its annual earnings-per-share forecast excluding some items to between $2.15 and $2.25, from the previous range of $2.30 to $2.55.
CA Inc. (CA US) fell 1.9 percent to $23.40, the biggest decline since Feb. 4. The second-largest maker of software for mainframe computers said its 2010 profit will be at the low end of its forecast range. CA also said it will cut about 1,000 jobs as part of its 2010 restructuring plan.
China Information Security Technology Inc. (CPBY US) rose the most in Russell 2000 Index, rallying 32 percent to $7.00. The software company said it was picked as one of the two suppliers to State Grid Corporation of China to help build out a nationwide electricity grid.
Hertz Global Holdings Inc. (HTZ US) climbed 9.8 percent to $11.84 for the biggest rally in the Russell 1000 Index. The second-largest U.S. rental car company was raised to "buy" from "neutral" at Northcoast Research.
IStar Financial Inc. (SFI US) slid 4.3 percent to $4.67, the first decline in four days. The provider of loans to real- estate investors said James Burns resigned as chief financial officer and it's searching for a replacement.
JDS Uniphase Corp. (JDSU US) climbed 2.4 percent to $13.32, the highest level since April 2008. Royal Bank of Canada boosted its share-price forecast for the maker of fiber-optic equipment to $16 from $12, citing improving demand and cost savings from the acquisition of Agilent Technologies Inc.'s network solutions test unit.
KB Home (KBH US) fell 2.8 percent, the most since Feb. 23, to $16.51. The Los Angeles-based homebuilder that sells to first-time buyers was downgraded to "neutral" from "outperform" at Credit Suisse Group AG.
The brokerage cut Pulte Group Inc. (PHM US) to "underperform" from "neutral." The stock retreated 2.5 percent to $11.16.
Massey Energy Co. (MEE US) dropped 11 percent to $48.45 for the biggest slump in the S&P 500. An explosion at a Massey coal mine in West Virginia killed 25 workers and left four missing, the worst U.S. mine disaster since 1984.
Rogers Corp. (ROG US) jumped 6 percent, the most since Nov. 3, to $32.15. The maker of components used by telephone, technology and defense companies raised its forecast for first- quarter sales to $83 million from a range of $75 million to $80 million. Analysts had expected $78 million.
Teekay Tankers Ltd. (TNK US) declined 6.8 percent, the most since June 19, to $12.15. The owner of crude-oil tankers said it will offer 7 million shares of common stock, and plans to use the proceeds to help finance a $168.7 million acquisition of three oil tankers from its affiliate, Teekay Corp. (TK US)
Virage Logic Corp. (VIRL US) climbed 14 percent, the most since April 2009, to $9.43. The maker of memory products for semiconductors said it probably earned at least 6 cents a share in the fiscal second quarter, surpassing its earlier forecast of 2 cents at most.
Wonder Auto Technologies Inc. (WATG US) jumped 13 percent, the most since Oct. 14, to $12.27. The Jinzhou, China-based auto parts manufacturer said first-quarter revenue exceeded $63 million. That's higher than the average analyst estimate of $58.6 million from analysts in a Bloomberg survey.
To contact the reporter on this story: Jeff Kearns in New York at firstname.lastname@example.org.