With five days until settlement, Bitcoin's largest near-term derivatives event is coming into focus on Deribit: 80,535 contracts worth $6.25 billion expire on May 29, 2026, and the tug-of-war between where the market wants to go and where max pain sits is already moving volume.
Max pain — the price at which the most contracts expire worthless, maximizing losses for option buyers — sits at $75,000. The largest put concentration is at that level, with $394 million in notional value. Market makers systematically hedge toward max pain as settlement approaches, creating gravitational pull on spot price. Bitcoin was trading near $77,000 as of May 21 when CoinDesk reported on the setup, leaving roughly $2,000 of downward pull between current price and max pain.
The call side tells a different story. The $80,000 strike holds $532 million, the dominant notional level on the call book. But on May 22, the $82,000 call was the single most actively traded instrument across all of Deribit, with approximately 1,600 contracts — roughly $126 million in notional — changing hands in a single session, per CoinDesk. That level is well out of the money at current prices; concentrated buying there signals traders positioning for an upside breakout before expiry, not a consolidation.
The put/call ratio across the full expiry stands at 0.86, computed from 43,184 call contracts against 37,351 puts. A ratio below 1.0 is structurally bullish, but the ratio alone does not override the max pain dynamic in the days immediately preceding settlement.
Behind the expiry sits a structural shift in who holds the most Bitcoin options exposure globally. Deribit's total Bitcoin options open interest reached $31.3 billion on May 21, 2026, overtaking BlackRock's IBIT at $27 billion, according to Checkonchain data. The reversal is notable: IBIT briefly surpassed Deribit in April for the first time since ETF options launched in November 2024. IBIT contracts carry longer average maturities than Deribit's short-dated structure, pointing to different investor profiles across the two venues — institutional duration buyers on the ETF side, active short-term traders on the crypto-native side.
Into May 29, two levels define the range. On the downside, $75,000 is where market-maker hedging activity concentrates and where $394 million in put notional creates structural support for sellers. On the upside, $82,000 is where the most aggressive speculative positioning lives. The $80,000 call wall at $532 million sits between the two as the intermediate resistance. A spot price that holds above $77,000 into Thursday weakens the max pain pull; a drift below $76,000 in the next two sessions would bring the $75,000 gravitational argument back into play.
Sources: CoinDesk, May 21, 2026 — "The $6 billion expiration countdown: Traders pile into $82,000 bitcoin calls ahead of May 29 expiry"; crypto.news, "Bitcoin options hit $31.3B on Deribit ahead of May 29"; Deribit open interest by expiry via Checkonchain/The Block.