Stocks that moved substantially or traded heavily Tuesday on the New York Stock Exchange and Nasdaq Stock Market:
Barnes & Noble Inc., up $1.70 at $13.13
The bookseller narrowed its quarterly loss as sales if its Nook e-book reader and e-books helped offset lower physical book sales.
Dollar General Corp., up $1.97 at $35.76
The discount store operator said that its second-quarter earnings rose as thrifty consumers bought more candy and groceries.
Ryder System Inc., up $1.22 at $46.67
A Morgan Keegan analyst said that the truck rental and leasing company will do well even during a slowing economy.
LDK Solar Co., down 19 cents at $5.99
After the solar company released disappointing earnings, a Collins Stewart analyst maintained his "Sell" rating on its stock.
Winn-Dixie Stores Inc., down 15 cents at $7.45
The grocery store operator said that its fourth-quarter net income fell 48 percent as it faced tougher competition.
Limelight Networks Inc., up 14 cents at $2.62
The content delivery network provider sold its EyeWonder video and media advertising unit for about $66 million to DG FastChannel.
AEterna Zentaris Inc., up 14 cents at $2.03
The Canadian drug company said it got positive results from a study of its adult growth hormone deficiency diagnostic test.
1-800-Flowers.com Inc., down 8 cents at $2.66
The flowers and gourmet food basket retailer said its fiscal fourth-quarter loss narrowed as its flower business grew.