[Coinbase to Suspend AI16Z Perpetual Contract Trading in November 2025] Coinbase announced that AI16Z perpetual contract trading will be suspended around 11:30 (UTC) on November 15, 2025. AI16Z-PERP trading will be suspended on the Coinbase Advanced and Coinbase International Exchange platforms, with the final settlement price calculated based on the average index price from the 60 minutes prior to the trading suspension.