In brief

• Deribit data shows roughly 182,000 BTC in open Bitcoin options expiring Friday, Sept. 25—about 106,200 calls against 75,900 puts, worth close to $15.6 billion at current prices.
• Max pain sits at $76,000 on Deribit's own dashboard, and the busiest strike on the board by far is $70,000, where both the largest call and largest put positions sit.
• Once the contracts settle, U.S. durable goods data, consumer sentiment numbers, and a CME futures settlement all land within hours, testing whether Bitcoin's rally can hold without the hedging that's helped drive it.

Bitcoin options worth roughly $15.6 billion expire on Deribit early Friday. That's per Deribit's own strike-by-strike breakdown of the book: about 182,000 BTC in open contracts, split into 106,200 calls and 75,900 puts.

A call option gives the buyer the right, not the obligation, to buy Bitcoin at a set price by a set date. A put works the other way, letting the holder sell at that price instead. Traders buy calls when they expect the price to climb. They buy puts when they expect it to drop.

The put-to-call ratio here works out to 0.71—meaningfully more calls than puts, a bet that prices keep climbing, pretty much in tandem with the “greed” sentiment flooding the markets, according to the Crypto Fear and Greed Index.

None of that $15.6 billion is cash changing hands on Friday. It's a notional figure—the value of Bitcoin the contracts represent, not money moving between accounts.

Options traders watch a level called max pain: the price at which the largest share of contracts expires worthless, with sellers theoretically favoring a push toward it. Deribit's own dashboard puts Friday's max pain at $76,000, roughly $9,000 below Bitcoin's price near $85,000.

Max pain has a mixed record as an actual predictor of where Bitcoin lands, so don't bet the farm on it.

Firms that sold those options have to hedge their exposure by buying or selling real Bitcoin as the price moves. When a dealer is short a call and the price rises, they typically buy Bitcoin to stay hedged, adding fuel to a rally that's already underway. Once the contracts expire, that hedging flow disappears—some of it rolls into the next quarter, some of it just evaporates.

Strike concentration shows exactly where that hedging clusters. By far the busiest strike on the board is $70,000, where Deribit's own numbers show both the largest call position (8,705 BTC) and the largest put position (7,653 BTC)—a level pulling hedging pressure from both directions at once.

On the call side, the next-heaviest positions sit at $90,000 (7,222 BTC), followed by $100,000 (6,950 BTC). On the put side, the biggest remaining defensive bets cluster at $60,000 (5,571 BTC) and $75,000 (4,257 BTC).

Deribit's settlement isn't the day's only test. U.S. durable goods orders and the University of Michigan's final September sentiment reading both land within hours of the expiry, and CME's own September Bitcoin futures settle the same day.

The Federal Reserve raised its target range to 3.75% to 4.00% on Sept. 16, so any surprise in those releases carries extra weight for rate-sensitive assets like Bitcoin.

September has a habit of testing Bitcoin's momentum anyway. The token has closed the month lower in eight of the past 13 years, a pattern Decrypt has tracked as "Red September."

This time, it seems like bulls are set to beat history.

Deribit's book settles at 8:00 UTC Friday. CME's futures close out the day's stretch of tests seven hours later, at 15:00 UTC.