Stocks that moved substantially or traded heavily Tuesday on the New York Stock Exchange and Nasdaq Stock Market:
Chesapeake Energy Corp., up $1.58 at $32.01
The energy company is selling all of its natural gas assets in Arkansas' Fayetteville shale to BHP Billiton Ltd. for $4.75 billion in cash.
Home Depot Inc., down 39 cents at $38.09
The home improvement retailer's quarterly net income jumped, and the company raised its earnings guidance and dividend.
Barnes & Noble Inc., down $2.67 at $15.94
The book seller suspended its dividend and issued no outlook for the year, and its costs for online operations and e-readers dragged on profit.
Office Depot Inc., up 2 cents at $5.49
The office supplies retailer narrowed its quarterly loss and beat analysts' average estimate despite a drop in revenue.
Delta Air Lines Inc., down 76 cents at $10.74
The airline's shares tumbled as political unrest in Libya, a major oil exporter, pushed oil prices to their highest level since October 2008.
Mentor Graphics Corp., up 95 cents at $15.47
Activist investor Carl Icahn offered to buy the software maker for $17 per share in cash, or about $1.9 billion, and he expects higher bids.
Netflix Inc., down $13.91 at $221.60
Amazon.com Inc. launched a streaming TV and movie service that costs $79 a year, ramping up competition with Netflix.
Clinical Data Inc., down $2.69 at $31.21
Forest Laboratories Inc. is buying the specialty pharmaceutical company for $30 per share, a discount from Friday's closing price.