NEW YORK (AP) -- Stocks that moved substantially or traded heavily Monday on the New York Stock Exchange and the Nasdaq Stock Market:
Sprint Nextel Corp., up 84 cents at $7.06
Dish Network Corp. offered $25.5 billion in cash and stock for the wireless carrier, which Dish says beats an offer from Softbank.
Alpha Natural Resources Inc., down 77 cents at $7.14
Shares of the coal company fell on concerns that a slowdown in China's growth could soften global demand for certain kinds of coal.
Freeport-McMoRan Copper & Gold Inc., down $2.65 at $29.27
Shares of the mining company fell as the price of gold plummeted below $1,400 an ounce, its lowest level in more than two years.
Martin Marietta Materials Inc., down $5.17 at $93.56
Shares of the construction materials company fell after a report showed homebuilder confidence fell on concerns about rising costs.
Citigroup Inc., up 9 cents at $44.87
The bank posted first-quarter earnings and revenue that beat analysts' estimates, thanks to its investment banking business.
Life Technologies Corp., up $5.11 at $73.11
Thermo Fisher Scientific Inc. has offered to pay about $13.6 billion in cash to buy the maker of genetic testing equipment.
Theravance Inc., up $4.60 at $28.36
The Food and Drug Administration released a review of the drugmaker's combination inhaler drug with GlaxoSmithKline to treat lung disease.
Discovery Laboratories Inc., down 54 cents at $1.85
The company said the launch of its respiratory drug Surfaxin will be delayed about six more months, to the fourth quarter of this year.