Breaking News

Tweet TWEET

Barnes & Noble, Humana, Sunoco: U.S. Equity Movers

Shares of the following companies are having unusual moves in U.S. trading. Stock symbols are in parentheses, and prices are as of 10:50 a.m. in New York.

Barnes & Noble Inc. (BKS) surged 66 percent to $22.68 for the biggest increase in the Russell 2000 Index. A new subsidiary that combines the bookseller’s Nook digital reader and college businesses will receive a $300 million investment from Microsoft Corp. (MSFT US).

Conceptus Inc. (CPTS) rose 21 percent to $18.34 for the biggest intraday gain since October 2008. The maker of a female- sterilization method boosted its full-year sales forecast.

Demand Media Inc. (DMD) rallied 23 percent to $8.90 after reaching $9.51, the highest intraday price since Aug. 15. A deal by Thomas H. Lee Partners to take private the operator of websites eHow.com and LiveStrong.com for $1.2 billion fell apart, AllThingsD said, without saying where it got the information.

Gen-Probe Inc. (GPRO) climbed 19 percent, the most intraday since April 2011, to $81.85. The developer of testing for sexually transmitted disease agreed to be bought by Hologic Inc. (HOLX) for about $3.7 billion in cash. Hologic slipped 8.9 percent to $19.34.

Harman International Industries Inc. (HAR) increased 11 percent to $52.42 and jumped 12 percent earlier, the most intraday since Oct. 21. The maker of audio equipment for cars and homes reported third-quarter earnings excluding some items of 74 cents a share, exceeding the average analyst estimate of 67 cents.

Humana Inc. (HUM) declined 6.2 percent, the most in the Standard & Poor’s 500 Index, to $82.36. The second-biggest provider of U.S.-backed Medicare insurance said first-quarter profit declined as premiums failed to keep up with rising medical costs.

Imperial Holdings Inc. (IFT) surged 33 percent to $3.91 after rallying as much as 40 percent, the most intraday since it went public in February 2011. The specialty finance company agreed to pay an $8 million penalty to resolve fraud allegations related to its involvement in making misrepresentations on life insurance applications, the Department of Justice said.

Merck & Co. (MRK) rose the most in the Dow Jones Industrial Average, climbing 2 percent to $39.23. The drugmaker’s subsidiaries won a patent-infringement case against Sigma Pharmaceuticals Plc (SIP AU) over the importing of asthma drugs from Poland to the U.K.

Sunoco Inc. (SUN) climbed 19 percent to $48.81 for the biggest advance in the S&P 500. The Philadelphia-based refinery agreed to be acquired for $5.3 billion in shares and cash by Energy Transfer Partners LP (ETP US), which is adding oil transportation and distribution assets.

NYSE Euronext (NYX) had the second-biggest decline in the S&P 500, retreating 4.7 percent to $25.80. The largest U.S. exchange operator reported a 44 percent decline in first-quarter profit, as expenses related to its failed merger with Deutsche Boerse AG combined with a slowdown in trading.

Sohu.com Inc. (SOHU) dropped 8.1 percent to $51.27 after sinking 10 percent earlier, the most intraday since Feb. 6. The operator of China’s third-biggest online video site forecast lower-than-expected growth in revenue this quarter as an economic slowdown weakened online advertising sales.

Tenneco Inc. (TEN) fell 9.6 percent to $33.63 after erasing 11 percent earlier, the most intraday since Oct. 28. The world’s largest maker of vehicle-exhaust systems reported first- quarter earnings and revenue that fell short of the average analyst estimates.

VeriFone Systems Inc. (PAY) slipped 9 percent to $49.54 after sliding 11 percent earlier, the most intraday since May 12. The largest maker of credit-card terminals was cut to sell from hold by Deutsche Bank AG.

Warner Chilcott Plc (WCRX) gained 17 percent to $21.97 after jumping as much as 24 percent, the most intraday since August 2009. The maker of dermatology and women’s health drugs said it is exploring a sale of the company and is in talks with potential buyers.

To contact the reporter on this story: Lu Wang in New York at lwang8@bloomberg.net.

To contact the editor responsible for this story: Nick Baker at nbaker7@bloomberg.net

Bloomberg reserves the right to remove comments but is under no obligation to do so, or to explain individual moderation decisions.

Please enable JavaScript to view the comments powered by Disqus.