UPDATE 5-McDonald's October same-store sales up, U.S. slips

* U.S. same-store sales fell 0.1 percent

* Worldwide comparable sales rose 3.3 percent

* Europe same-store sales jumped 6.4 percent

* Shares up 1.5 percent (Adds background; updates stock activity)

By Lisa Baertlein and Jessica Wohl

LOS ANGELES/CHICAGO, Nov 9 (Reuters) - McDonald's Corp (MCD.N) said sales at established U.S. restaurants fell 0.1 percent in October, as expected, but its stock ticked up 1.5 percent after sales from the rest of the world buoyed overall results.

McDonald's, which has been outperforming its peers, had signaled last month that U.S. October sales would be weak.

Analysts said that while the world's largest hamburger chain is not invulnerable to price wars and rising unemployment it remains a strong competitor.

The dip in sales at U.S. restaurants open at least 13 months marked the first time McDonald's same-store sales fell in its home market since March 2008, when such sales declined 0.8 percent.