Fed. Sec. L. Rep. P 95,642 Miguel A. Gargallo v. Merrill Lynch, Pierce, Fenner & Smith, Inc. And Larry W. Tyree

RYAN, Circuit Judge.

This case presents the interesting dual questions 1) whether a federal court must apply federal or state claim preclusion law in deciding 2) whether a prior state court judgment upon subject matter over which only a federal court has jurisdiction is a bar to a subsequent federal court claim upon the identical cause of action. Plaintiff Miguel A. Gargallo sued defendants Merrill Lynch, Pierce, Fenner, & Smith, Inc. (“Merrill Lynch”) and Larry W. Tyree, a security salesman for Merrill Lynch, in the United States District Court for the Southern District of Ohio alleging…