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.
Advanced Micro Devices Inc. (AMD US) gained 6.3 percent, the second-most in the Standard & Poor’s 500 index, to $8.25. The second-largest maker of processors for personal computers was moved to buy from hold at Jefferies & Co., which increased the 12-month price estimate to $10.50 from $7.
Alliance HealthCare Services Inc. (AIQ US) surged 17 percent, the most since Dec. 30, to $1.62. The outpatient diagnostic-imaging company affirmed its 2012 sales may be as high as $500 million, beating the $482.7 million average estimate of three analysts surveyed by Bloomberg.
Aixtron SE (AIXG US) rallied 17 percent to $19.15, the highest price since Sept. 14. The manufacturer of equipment for the semiconductor industry was raised to buy from hold at Deutsche Bank AG, citing “early indications of a recovery” in industry demand.
Assurant Inc. (AIZ US) posted the largest decline in the S&P 500, erasing 3.1 percent to $40.85. The insurer of foreclosed properties fell after a California regulator directed insurers to lower their rates for clients who lapsed on their previous residential policies.
CSX Corp. (CSX US) gained 8.5 percent, the most since April 2009, to $21.92. The biggest eastern-U.S. railroad said it expects record first-quarter earnings even with a decline of as much as 30 percent in domestic utility coal shipments.
Eagle Bulk Shipping Inc. (EGLE US) dropped 11 percent, the most since Sept. 16, to $1.60. The world’s second-largest owner of supramax dry-bulk ships was cut to sell from hold at Cantor Fitzgerald LP.
Guess? Inc. (GES US) slid 10 percent, the most in the Russell 1000 Index, to $32.97. The clothing retailer forecast fiscal 2013 earnings of no more than $2.65 a share, below the average analyst estimate of $3.16 a share, according to a Bloomberg survey.
InterMune Inc. (ITMN US) advanced 4.4 percent to $15.45, the highest price since Feb. 8. The Brisbane, California-based company’s lung-disease drug Esbriet offers an additional benefit, Germany’s Federal Joint Committee said.
Kit Digital Inc. (KITD US) fell 8 percent to $8.51, the lowest price since Jan. 5. The provider of software for online video reported fourth quarter net income of 5 cents a share, missing the average analyst estimate by 66 percent, data compiled by Bloomberg show.
Level 3 Communications Inc. (LVLT US) increased 6.7 percent to $26.60, the highest price since Oct. 31. The broadband-services provider was raised to buy from neutral at Bank of America Corp.
Morgan Stanley (MS US) rose 4.9 percent, the most since Jan. 19, to $19.51. The owner of the world’s largest brokerage sued Sterling Stamos funds over $17.6 million in distributions, which it claims were withheld from a hedging affiliate that owned units in a liquidating trust set up by the money management firm.
Newcastle Investment Corp. (NCT US) jumped 5.3 percent to $6.54, the highest price since March 22. The New York-based real estate investment trust said it raised quarterly dividend to 20 cents a share from 15 cents. The dividend is payable on April 30, to shareholders of record on March 26.
Rue21 Inc. (RUE US) fell 5.6 percent, the most since Sept. 21, to $27.12. The teen specialty retailer forecast first-quarter earnings of 42 cents a share to 44 cents a share. That compares with the average analyst estimate of 44 cents a share, Bloomberg data show.
Scholastic Corp. (SCHL US) surged 13 percent, the most since July 2009, to $36.36. The children’s book publisher boosted its full-year forecast, saying it now expects to earn at least $2.60 a share from continuing operations. The company had projected $2.10 at most.
Towerstream Corp. (TWER US) gained the most in the Russell 2000 Index, adding 42 percent to $3.70. The Middletown, Rhode Island-based Internet services company forecast first-quarter revenue would be $7.6 million to $7.7 million, after saying fourth-quarter sales climbed 6 percent to $7.2 million, data compiled by Bloomberg show.
Vera Bradley Inc. (VRA US) slipped 9.6 percent, the most since June 2, to $33.58. The seller of women’s fashion accessories forecast first-quarter earnings per share of no more than 29 cents, missing the average analyst estimate of 32 cents.