BP, Western Union, Costco, Yahoo, Tiffany among big market movers Thursday

BP, Western Union, Costco, Yahoo among big movers

NEW YORK — Stocks that moved substantially or traded heavily Thursday on the New York Stock Exchange and Nasdaq Stock Market:

NYSE:

BP PLC, up $2.97 at $45.38

The Coast Guard and BP said an untested procedure to stop the massive Gulf oil spill by injecting mud seemed to be working.

Western Union Co., up 60 cents at $16.26

Western Union will slash its executive ranks and book $80 million in restructuring charges through next year.

Tiffany & Co., up $3.27 at $46.86

The jewelry and gift seller’s net income more than doubled as its revenue rose in the U.S. and soared 50 percent in Asia.

AU Optronics Corp., up 50 cents at $9.75

SunPower Corp. plans to form a joint venture with AU Optronics that will own and operate a solar cell manufacturing plant in Malaysia.

Genesco Inc., up 93 cents at $29.91

The retailer that runs thousands of stores under a variety of names returned to a first-quarter net profit as its revenue increased.

Borders Group Inc., down 15 cents at $2.14

Cutting costs helped Borders narrow its fiscal first-quarter loss even as its revenue fell 16 percent.

NASDAQ:

Costco Wholesale Corp., up $2.76 at $58.74

The company saw stronger sales as shoppers picked up a few modest extras like doormats and coffee makers along with their food.

Yahoo Inc., up 24 cents at $15.69

The search giant expects to report higher-than-expected revenue growth through 2013, but analysts said the company still faces risks.