Burger King Shares keep rising

Shares of Burger King Corp. rose for a second day Friday, after the nation's No. 2 burger chain reported growth in quarterly profit in the face of a difficult consumer environment that slowed sales at its biggest rival, McDonald's.

On Thursday, Burger King said its second-quarter profit rose 29 percent. Worldwide same-store sales, or sales at locations open at least a year, rose 4.5 percent. Same-store sales is a closely watched performance indicator because it measures sales at existing locations rather than newly opened ones.