OKX scheduled IOSTUSD and STRKUSD UM Expiry Perp (X-Perp) trading to open on September 17, 2026, expanding a product rollout that also included the xMETA/USDC tokenized-stock market and the COHRUSD UM X-Perp. IOSTUSD trading was set to begin at 08:00 UTC and STRKUSD at 08:15 UTC across OKX's web and app interfaces and API, subject to regional availability. The xMETA/USDC market entered pre-open trading from 09:00 to 10:00 UTC before spot trading began at 10:00 UTC. OKX said X-Perps are designed to provide a more flexible and efficient derivatives trading experience and advised users to understand leveraged-trading risks and manage positions accordingly. It also said tokenized stocks provide no direct ownership or shareholder rights and warned that off-hours prices and liquidity can vary.