NYSE:

USEC Inc., down $2.14 at $4.05

The Department of Energy denied a $2 billion loan guarantee the company needed to finance the construction of an Ohio uranium plant.

Interpublic Group of Cos., down 78 cents at $5.41

The advertising and marketing conglomerate said its profit tumbled by more than three-fourths in the second quarter as sales slid.

Office Depot Inc., down 97 cents at $4.38

The office supply chain said its second quarter loss widened as it closed stores and consumers and small businesses cut purchases.

Virgin Mobile USA Inc., up $1.07 at $5.28

Telecom Sprint Nextel is buying the wireless carrier for $5.50 in stock, or $483 million, so it can build its prepaid market presence.

Textron Inc., up $1.96 at $13.11

Big restructuring charges drove the maker of Cessna planes and Bell helicopters to a loss, but adjusted results were better than expected.

Tenet Healthcare Corp., up 47 cents at $4.07

The hospital operator boosted its profit guidance for the year, saying growth in outpatient procedures were fueling revenue.

NASDAQ

Mylan Inc., up 46 cents at $12.56

The FDA said there was not yet a conclusion to its investigation into quality control issues at the drug developer's West Virginia factory.

SPSS Inc., up $14.36 at $49.45

IBM Corp. said it would buy the Chicago-based business and trends research software company for $50 per share, or $1.2 billion.

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