The Ninth Circuit US Court of Appeals ruled that the Federal Trade Commission (FTC) did not sufficiently prove that Microsoft's acquisition of Activision Blizzard would restrict the availability of the Call of Duty franchise on competing platforms. The court upheld a previous ruling that blocked the FTC's attempt to halt the merger, stating that the FTC's case lacked adequate evidentiary support and did not raise substantial questions about reduced competition. The merger, initially announced in 2022, received approval in 2023, allowing Microsoft to integrate Activision Blizzard into its portfolio.