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.
Financial shares in the Standard & Poor’s 500 index fell the most since June 1, as Italian and Spanish government bonds sank. JPMorgan Chase & Co. (JPM US) sank 3.2 percent to $39.43. Bank of America Corp. (BAC US) declined 3.3 percent to $10.35. Citigroup Inc. (C US) slid 5.3 percent to $39.79. Janus Capital Group Inc. (JNS US) lost 6.8 percent to $9.16, the second-biggest retreat in the S&P 500.
Arch Chemicals Inc. (ARJ US) surged 12 percent to $47.37, the second-biggest gain in the Russell 2000 Index. The Norwalk, Connecticut-based producer of dry chlorine for swimming pools agreed to be bought for $47.20 per share, or $1.2 billion by Lonza Group Ltd. (LONN VX).
Fabrinet (FN US) fell 10 percent, the most since March 9, to $21.36. Oclaro Inc. (OCLR US) delivered a notice to the maker of optical telecommunications equipment to terminate a supply agreement, according to a regulatory filing.
Micromet Inc. (MITI US) gained 7.3 percent to $6.18, the highest price since May 31. The biotechnology company said it entered into a collaboration agreement with Amgen Inc. (AMGN US), for research on BiTE antibodies against three undisclosed solid tumor targets, according to a statement. Amgen will have the right to pursue development and commercialization of BiTE antibodies against up to two of these targets selected by Amgen. Payments to Micromet may total as much as 695 million euros ($976 million), excluding development costs.
News Corp. (NWSA US) had the biggest retreat in the S&P 500 Index, sliding 7.6 percent to $15.48. The media company’s 7.8 billion-pound ($12.4 billion) bid for British Sky Broadcasting Group Plc faces a review by the top U.K. competition authority that will take at least six months as a probe into phone hacking widens.
NYSE Euronext (NYX US) fell 5.1 percent, the most since May 16, to $33.64. The New York Stock Exchange owner that Deutsche Boerse AG (DB1 GY) is buying in an all-stock deal slumped along with the Frankfurt-based company. Germany’s benchmark DAX Index slid 2.3 percent, its biggest drop since March 15, helping send Deutsche Boerse down 3.5 percent to 53.05 euros.
SonoSite Inc. (SONO US) gained 3.2 percent to $36.38, the highest price since May 13. The ultrasound-equipment maker will replace Kendle International Inc. (KNDL US) in the Standard & Poor’s SmallCap 600 Index. Kendle, a contract researcher, is being acquired by Avista Capital Partners and Ontario Teachers Pension Plan.
Stillwater Mining Co. (SWC US) tumbled 22 percent, the most intraday since December 2008, to $18.46. The Billings, Montana-based producer of platinum and palladium agreed to buy Peregrine Metals Ltd. (PGM CN) for $487.1 million.
YRC Worldwide Inc. (YRCW US) surged 10 percent, the most since June 27, to $1.27. The trucking company said it obtained commitments for a three-year $400 million asset-based loan to replace its existing asset-backed securitization facility.