Shares of the following companies may have unusual moves in U.S. trading. Stock symbols are in parentheses, and prices are as of 8:51 a.m. in New York.
Post Holdings Inc. (POST-W) (POST-W US) will replace Comstock Resources Inc. (CRK) in the S&P MidCap 400 Index, and Comstock will take THQ Inc. (THQ)’s (THQI US) place in the S&P SmallCap 600 Index, after trading closes on Feb. 3, S&P said.
The change is being made because Ralcorp Holdings Inc. (RAH) is spinning off Post in a transaction expected to be completed on or about Feb. 3, S&P said in a statement.
Align Technology Inc. (ALGN) fell 7.4 percent to $23.50. The maker of a teeth-straightening product forecast first- quarter profit excluding some items of no more 21 cents a share, below the average analyst estimate of 22 cents in a Bloomberg survey.
Archer-Daniels-Midland Co. (ADM) declined 4.2 percent to $28.45. The world’s largest grain processor posted a second- quarter profit that missed analysts’ estimates after oilseed earnings fell and corn costs rose.
Biogen Idec Inc. (BIIB) retreated 1.3 percent to $115.02. The world’s largest maker of multiple sclerosis medicines said it sees earnings in 2012 of no more than $6.20 a share, excluding some items, missing the average analyst estimate of $6.31.
Ceva Inc. (CEVA) rose 6.8 percent to $30.01. The chip designer reported fourth-quarter adjusted earnings of 26 cents a share, surpassing the average analyst estimate by 4 cents.
Eli Lilly & Co. (LLY US) advanced 2.8 percent to $40.35. The pharmaceutical company whose schizophrenia drug Zyprexa lost patent protection in October said fourth-quarter profit excluding some items was 87 cents a share, beating the 81-cent average of 17 analyst estimates compiled by Bloomberg.
Hologic Inc. (HOLX) added 5.5 percent to $20.25. The Bedford, Massachusetts-based maker of X-ray systems raised its 2012 profit forecast to as much as $1.38 a share, more than the average analyst estimate of $1.36 a share.
Kulicke & Soffa Industries Inc. (KLIC US) lost 7.9 percent to $10.33. The maker of semiconductor assembly equipment forecast second-quarter sales to be no more than $135 million, falling short of the average analyst estimate of $138 million.
Mattel Inc. (MAT) gained 3.1 percent to $30.45. The maker of Barbie dolls reported fourth-quarter profit of $1.07 a share, excluding some items, beating the $1 average analyst estimate.
Paccar Inc. (PCAR) gained 5.6 percent to $46.65. The truckmaker reported fourth-quarter earnings of 91 cents a share, exceeding the 79-cent average estimate by analysts.
Parexel International Corp. (PRXL) : The tester of experimental medicines for drugmakers forecast third-quarter earnings of as much as 32 cents a share excluding some items, above the average analyst estimate of 30 cents a share, according to a Bloomberg survey.
Pfizer Inc. (PFE) gained 0.3 percent to $21.65. The world’s largest drugmaker beat analysts’ earnings estimates as the company’s non-pharmaceutical divisions helped make up for sales losses from generic competition to its best-seller Lipitor. The company lowered its 2012 forecast.
RadioShack Corp. (RSH) plunged 32 percent to $7. The consumer-electronics retailer suspended share repurchases and reported preliminary fourth-quarter earnings that trailed analysts’ estimates. Earnings fell to 11 cents to 13 cents a share last quarter. Analysts projected 37 cents, the average of 19 estimates compiled by Bloomberg. RadioShack cited “underperformance” in the Sprint Nextel Corp. (S) postpaid wireless business.
Rent-A-Center Inc. (RCII) (RCII US) slumped 6.2 percent to $34.90. The biggest U.S. rent-to-own retailer forecast earnings for 2012 to be no more than $3.20 a share, missing the average analyst estimate of $3.22.
Rex Energy Corp. (REXX) erased 8.6 percent to $9.70. The oil and gas company with operations in the Illinois and Appalachian basin announced plans for a public offering of 7 million ordinary shares. Additional stock may dilute the value of existing shares.
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