Bitcoin futures OI totals about $42.6B on 11 exchanges as of May 31, 2026

As of May 31, 2026, bitcoin traded at $73,600 while BTC futures open interest across 11 venues totaled about $42.6B and BTC options OI hovered near $40B. Binance led futures OI with 141,100 BTC ($10.40B) and CME followed with 102,330 BTC ($7.55B), while Deribit's June 26 expiry carried roughly $8.5B notional with max pain around $77,500.