Bitcoin derivatives markets sent mixed signals on May 2, 2026, as total open interest (OI) rebounded to approximately $30 billion while the spot price remained steady at $78,418. Data from Coinglass reveals that call options dominate open interest at 58.69% versus puts at 41.31%, yet 24-hour volume tells a different story—puts accounted for 53.65% of traded volume, indicating short-term hedging activity.
Futures Open Interest: Binance Leads, CME Posts Strongest Gain
Bitcoin futures OI varied across exchanges. Binance held the largest share with 134,620 BTC ($10.55 billion), followed by CME with 117,320 BTC ($9.2 billion). Gate.io had 68,860 BTC ($5.4 billion), MEXC 78,430 BTC ($6.15 billion), and Bybit 59,890 BTC ($4.7 billion). Notably, CME recorded a 24-hour OI increase of 6.16%, the highest among major exchanges, while BingX saw a sharp decline of 54.60% and KuCoin edged up 4.32%. The overall futures OI has recovered from the low of under $25 billion seen in late January and February, signaling renewed participation.
Options Market: Calls Dominate Open Interest but Max Pain Looms
In the options segment, total call OI stood at 241,222.88 BTC versus put OI of 169,755.09 BTC, yielding a call/put ratio of 58.69%/41.31%. However, 24-hour volume favored puts at 53.65% against calls at 46.35%, suggesting traders are hedging against downside in the near term. The largest single option contract on Deribit is the 80,000 call expiring May 29, with open interest of 7,493.7 BTC. The next largest are the December 2026 120,000 call (6,600 BTC) and the June 2026 90,000 call (6,362.7 BTC). The biggest put is the December 2026 60,000 put, holding 5,298.9 BTC.
Max pain levels varied by exchange. Deribit's May 3 expiry max pain sits near $78,000, extremely close to the spot price of $78,418, implying option sellers have a strong incentive to keep the price around this level. Binance's May 29 expiry max pain is around $75,000, while OKX's May 3 expiry max pain is as low as $65,000, reflecting divergent short-term expectations. CME options OI data shows that contracts expiring in one to two months dominate the structure, but total volumes remain significantly below the November 2025 peaks (when CME options OI neared 70,000 contracts). Current levels range from 8,000 to 14,000 contracts per expiry cycle.
Whale Withdrawal and ETF Inflows Add to the Mix
On-chain data revealed that a newly created address withdrew 1,051 BTC ($82.35 million) from Binance in a single transaction, while U.S. Bitcoin ETFs recorded net inflows of $630 million on the same day. Large withdrawals are often interpreted as a bullish long-term holding signal, complementing institutional flows from ETFs.
Overall, the Bitcoin derivatives market is displaying a tug-of-war: call option open interest is dominant, but short-term volume leans bearish, max pain aligns with spot price, and futures OI is recovering unevenly. Traders should watch for price action around the May 3 expiry weekend, as option delta hedging by sellers could become a key force influencing Bitcoin's trajectory.