OKX said it will launch USELESSUSD, SOPHUSD and AEROUSD expiry perpetual contracts, known as X-Perps, across its web and app interfaces and API. Trading for USELESSUSD UM (X-Perp) is scheduled to open at 8:00 UTC on September 9, 2026, followed by SOPHUSD at 8:15 UTC and AEROUSD at 8:30 UTC. OKX said X-Perp is intended to provide a more flexible and efficient derivatives trading experience. The exchange advised users to understand the risks of leveraged trading and manage their positions accordingly. Availability of each token or product may depend on the user's region and can be checked in the app. OKX also directed users to its trading tutorial and said inquiries can be submitted through the OKX Support Center or other platforms.