Appeal from a decision of the United States District Court for the Southern District of New York (Shira A. Scheindlin, Judge) granting a petition to vacate an arbitral award under the Federal Arbitration Act on the basis of "evident partiality." 9 U.S.C. § 10(a)(2). The district court concluded that vacatur was warranted because two of the three members of the arbitral panel failed to disclose their simultaneous service as arbitrators in another proceeding in which a common witness, similar legal issues, and a related party were involved. We conclude that there was insufficient evidence before the district court on which to base a finding of "evident partiality." We therefore reverse and remand with instructions to confirm the arbitral award.