Fast food chain Burger King Corp. is scheduled to report its fiscal second-quarter results Thursday morning.
In its fiscal first quarter, Burger King's same-store sales increased 6.6 percent in the U.S. and Canada, and 5.9 percent worldwide.
But in what is possibly a bad sign for Burger King, on Monday rival McDonald's Corp. said its December same-store sales were flat in December, and up only 1.5 percent so far in January.
