OKX to List ARXUSD and UBUSD Perpetual ContractsAccording to an announcement from OKX, OKX will officially list ARXUSD and UBUSD-margined perpetual contracts (X-Perp) on its web, app, and API.The ARXUSD perpetual contract will open for trading at 14:30 Beijing time on June 24; the UBUSD perpetual contract will open for trading at 14:45 Beijing time on June 24.