Bitcoin’s Biggest Monthly Options Expiry Lands Right at the $66,000 Level

A single monthly options expiry on July 31 is turning into a tug-of-war between longs and shorts, right at the level that matters most.

Bitcoin’s largest monthly derivatives expiration of the summer lands on July 31, 2026, with open interest clustered tightly around the $66,000 level. Traders on both sides have positioned aggressively into the date, turning it into a genuine tug-of-war rather than a routine settlement.

The setup follows a sharp reversal earlier in the week: Bitcoin had briefly dipped after the Fed’s FOMC meeting left rates unchanged at 3.50%-3.75%, then rebounded as spot Bitcoin ETFs logged five straight days of net inflows exceeding $600 million combined.

Large options expiries tend to create a magnet effect toward the strike price with the most open contracts — sometimes called the “max pain” point — as market makers hedge their exposure. With so much open interest concentrated near $66,000, price action around the expiry window is likely to be choppier than usual, even if the move doesn’t hold once contracts settle.

None of this changes the underlying picture on its own — expiry-driven volatility is typically short-lived, and the ETF inflow trend matters more for where price goes over the following weeks than a single settlement date does.

New to how options and expiries affect crypto prices? Explore the Bitcoin Academy.