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Acura, PNM, Ralcorp, Vanguard Health Systems: U.S. Equity Movers

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.

Mobile stocks reacted to Google Inc. (GOOG)’s announcement that it will purchase Motorola Mobility Holdings Inc. (MMI US) for about $12.5 billion. Motorola Mobility, the handset maker spun off from parent Motorola Inc., surged 56 percent to $38.13 for the biggest gain in the Standard & Poor’s 500 Index. Google, the maker of the Android mobile-phone software, fell 1.2 percent to $557.23. Nokia Corp. (NOK US) jumped 17 percent to $6.29. InterDigital Inc. (IDCC US), the owner of mobile-phone patents that’s considering a sale, tumbled 14 percent to $64.96 for the biggest decline in the Russell 2000 Index. Apple Inc. (AAPL) advanced 1.7 percent to $383.41.

Acura Pharmaceuticals Inc. (ACUR) jumped 26 percent, the most since Dec. 21, to $3.24. Seeking Alpha contributor Brian Nichols said the pharmaceutical company may gain as partner Pfizer Inc. distributes their commonly developed painkiller Oxecta.

Bank of America Corp. (BAC) rose 7.9 percent, the most in the Dow Jones Industrial Average, to $7.76. The Charlotte, North Carolina-based bank agreed to sell an approximately $8.6 billion Canadian card unit to Toronto-Dominion Bank and exit U.K. and Irish card markets as the firm limits international consumer lending.

Estee Lauder Cos. (EL US) erased 6.5 percent to $94.27 for the biggest decline in the S&P 500. The maker of Clinique and Bobbi Brown makeup lines forecast adjusted earnings in 2012 to be no more than $4.20 a share, below the average analyst estimate of $4.35.

Impax Laboratories Inc. (IPXL) gained 14 percent, the most since March 15, to $19.11. The experimental Parkinson’s disease drug being developed by the Hayward, California-based company and GlaxoSmithKline Plc (GSK) helped patients in a clinical trial more than a generic product, the companies said in a statement. GlaxoSmithKline rose 2 percent to $42.11.

PNM Resources Inc. (PNM) climbed 6.5 percent, the most since March 1, to $15. The New Mexico electricity distributor was raised to “buy” from “hold” at Jefferies & Co. with a 12-month price estimate $16 a share.

Ralcorp Holdings Inc. (RAH) jumped 5.4 percent, the most since May 2, to $83.32. ConAgra Foods Inc., the maker of Chef Boyardee pasta, said the maker of Post cereals took less than 24 hours to reject its $5.18 billion takeover offer and did so without discussion between the two firms.

Vanguard Health Systems Inc. (VHS US) rose 8.6 percent, the most since its initial public offering in June, to $14.37. The hospital operator controlled by Blackstone Group LP was added to Deutsche Bank AG’s short-term buy list.

Zagg Inc. (ZAGG) climbed 6.4 percent to $15.67, the highest price since Aug. 3. The distributor of electronics accessories forecast 2011 revenue of at least $160 million, more than the average analyst estimate of $147 million.

To contact the reporter on this story: Nikolaj Gammeltoft in New York at ngammeltoft@bloomberg.net.

To contact the editor responsible for this story: Michael P. Regan at mregan12@bloomberg.net

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