Key Takeaways:
Bitcoin futures open interest (OI) across 11 exchanges totals roughly $42.6B, with Binance (19.14%) and CME (13.88%) holding the largest shares as of May 31, 2026, according to Coinglass data.Deribit’s June 26 expiry carries approximately $8.5B in notional value, with max pain near $77,500, about 5.3% above the current spot price of $73,600.CME put OI has outpaced calls since November 2025, signaling institutional hedging persists even as Bitcoin recovers from its February 2026 lows.CME’s stacked-by-expiration logs show near-term (1 to 2 months) contracts dominating the current structure, with very limited longer-dated OI compared to the October and November 2025 buildup period.
Max Pain: Deribit, Binance, OKXDeribit max pain for the June 26, 2026, expiry sits near $77,500 to $78,000, with notional value for that date approaching $9 billion. The furthest-dated expiry shown, March 2027, shows max pain collapsing to roughly $70,000, which would represent a roughly 4.9% move lower from the current price.
Binance max pain for June 26 hits around $85,000, well above spot, with notional value for that date reaching approximately $757 million. The curve climbs from $74,000 near-term to a peak near $85,000 before easing back toward $77,500 for later expirations.
OKX max pain tells a different story. The curve runs relatively flat near $74,000 through June 12 before climbing to approximately $78,000 by late June 26. It then holds between $75,500 and $78,000 through late 2026, before jumping sharply to near $80,500 by March 2027, the highest of the three exchanges for far-dated max pain.
What Traders Are WatchingThe June 26 expiry is the largest single settlement date by notional value across Deribit, Binance, and OKX. Deribit alone shows roughly $8.5 billion in notional value tied to that date. How the price behaves in the days leading up to that expiry could determine whether the bulk of open call positions expire in the money or turn to dust.
