Visa, Mastercard Keep Antitrust Win as Court Preserves Dismissal

Visa Inc. and Mastercard Inc. prevailed in an antitrust suit claiming they conspired to fix card transaction fees, after a federal judge denied the cardholder plaintiffs’ motion to amend their previously dismissed complaint.

Judge Margo K. Brodie of the US District Court for the Eastern District of New York in a Monday opinion said the plaintiffs failed to identify any facts that she overlooked in her December 2024 ruling, which determined they lacked antitrust standing and didn’t participate in the market where the alleged anticompetitive conduct occurred.

The plaintiffs’ attempt to repackage the relevant market definition is “unpersuasive,” Brodie ...