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.
Amedisys dropped 11 percent, the most since Sept. 3, to $39.34. Almost Family sank 11 percent, the most since February 2009, to $31.05. Gentiva Health Services Inc. (GTIV US) declined 11 percent, the most since February 2009, to $23.93. LHC Group Inc. (LHCG US) lost 12 percent, the most since February 2008, to $24.41.
Arena Pharmaceuticals Inc. (ARNA US) rose 16 percent, the most since June 2009, to $3.56. The company said Eisai Co. (ESALY US), maker of the world’s best-selling Alzheimer’s treatment Aricept, will sell a hunger-curbing pill from Arena in the U.S. if the obesity drug is approved.
AutoNavi Holdings Ltd. (AMAP US) rose 8 percent to $13.50 on the first day of trading. The Beijing-based provider of digital maps and navigation services raised $108 million selling 8.63 million shares at $12.50 each.
Avanir Pharmaceuticals Inc. (AVNR US) jumped 12 percent, the most since June 2009, to $2.87. The drugmaker was rated “buy” in new coverage at Jeffries & Co.
BJ’s Wholesale Club Inc. (BJ US) rose 18 percent, the most since at least 1997, to $43.54. Green Equity Investors V LP said it owns 9.5 percent of the warehouse-club chain, according to a filing with the U.S. Securities and Exchange Commission.
Christopher & Banks Corp. (CBK US) rose 18 percent, the most since Dec. 11, to $7.30. The Minnesota-based women’s clothing retailer reported first-quarter profit excluding some items of 18 cents a share, beating the average analyst estimate by 57 percent, according to Bloomberg data.
Dendreon Corp. (DNDN US) fell 6.8 percent to $30.13, the lowest price since Feb. 10. The U.S. agency supervising Medicare and Medicaid said it would review the effectiveness of the company’s Provenge prostate-cancer treatment.
Harte-Hanks Inc. (HHS US) climbed 7.5 percent, the most since Feb. 3, to $11.23. The publisher of the PennySaver advertising circular was raised to “market perform” from “underperform” at Bank of Montreal.
Hawk Corp. (HWK US) rose 7.7 percent to a record high of $27.40. The maker of products used in brakes and transmissions aid it’s considering possible strategic alternatives, including a sale of the company.
Isle of Capri Casinos Inc. (ISLE US) increased 6.9 percent, the most since June 2, to $9.90. The operator of 14 casinos in six states said it has postponed the proposed public offering of 9 million shares of its common stock, citing recent market conditions.
Pinnacle Airlines Corp. (PNCL US) gained 5.5 percent to $5.74, the highest price since June 7. The Memphis, Tennessee- based holding company bought the regional carrier Mesaba for $62 million from Delta Airlines Inc. (DAL US).