Stocks that moved substantially or traded heavily Thursday on the New York Stock Exchange and Nasdaq Stock Market:
Kraft Foods Inc., down 52 cents at $33.78
The country's largest food maker will divide into two: an international snacks company and a North American groceries seller.
Emdeon Inc., up $2.10 at $18.35
Private equity firm Blackstone Group will buy the health care payments technology company for about $2.2 billion.
Alpha Natural Resources Inc., down $6.84 at $33.24
The coal producer posted a quarterly loss on charges related to its acquisition of rival Massey Energy, although revenue rose.
Aeropostale Inc., down $3.99 at $12.53
The teen retailer cut its profit outlook after increased markdowns in its most recent quarter led to declining revenues.
SolarWinds Inc., up 93 cents at $22.22
The IT software provider was a rare gainer. Its quarterly profit jumped 64 percent, and its revenue forecast topped expectations.
Chiquita Brands International Inc., down $2.47 at $8.88
The produce company posted a second-quarter profit that fell short of the average estimate by Wall Street analysts.
Dendreon Corp., down $24.15 at $11.69
Problems plaguing the company's only marketed drug, Provenge, may be deeper than it is acknowledging, industry analysts said.
Leap Wireless International Inc., down $3.39 at $6.65
The low-cost wireless carrier's shares fell to a record low after it reported a loss of subscribers in the second quarter.