NYSE

Barnes & Noble Inc., down $1.07 at $24.67

The nation's largest bookseller said its second-quarter profit dropped 15 percent and warned of weaker sales for the year.

Burger King Holdings Inc., down $1.95 at $25.50

The nation's No. 2 hamburger chain said higher costs are squeezing margins, despite reporting a 42 percent rise in quarterly profit.

Bank of America Corp., down 25 cents at $29.04

The AP reported that New York's attorney general will include the bank in a deeper probe into auction-rate securities.

Stage Stores Inc., up 55 cents at $15.38

The clothing and accessories retailer raised its full-year guidance after reporting a slight slip in second-quarter earnings.

Kinross Gold Corp., up $1.48 at $17.22

The miner gained ground as gold prices appreciated and an RBC Capital Markets analyst raised future production estimates.

Exxon Mobil Corp., up $1.54 at $80.35

Gains in crude oil lifted shares as investors questioned whether tensions with Russia could disrupt energy shipments.

NASDAQ

Children's Place Retail Stores Inc., up $4.05 at $40.81

The clothing retailer said it swung to a profit in the fiscal second quarter, and it easily topped analyst estimates.

Hot Topic Inc., down $1.23 at $5.64

The teen retailer posted a quarterly loss and said same-store sales for August are lagging expectations.