TLDR
On 31 July, around $9.57 billion of Bitcoin (BTC) options expired in a single session, centered near the $64,000 max pain level.
- Roughly 149,000 BTC option contracts worth about $9.579.6 billion expired, making this one of the largest recent single-day Bitcoin options events.
- Positioning was heavily skewed to calls, with a put/call ratio near 0.28 and big upside strikes at $70,000$72,000, many of which expired out of the money.
- BTC spot stayed close to $64,000 and in a 60k66k range; post-expiry flows, new open interest around $60,000 puts, ETF inflows, and August seasonality are the key things to watch.
Deep Dive
1. Size Of The Expiry
On 31 July, about 149,000 Bitcoin options contracts, valued at $9.57 billion, and more than 400,000 Ethereum contracts, valued at roughly $825 million, were set to expire, for total notional near $10.4 billion in one day. This made the BTC leg alone one of the biggest single-day expiries in recent months, clearing roughly 30 percent of outstanding Bitcoin options contracts across venues.
Deribit, the dominant crypto options exchange, settled its monthly BTC and ETH options at 08:00 UTC, with settlement clustering around the $64,000 level for BTC and $1,850$1,900 for ETH.
A large expiry concentrates hedging and liquidity in a narrow window, so short-term volatility can spike even if spot ultimately stays in a familiar range.
2. Positioning And Sentiment
Into expiry, the options book was strongly call-heavy: data showed around $9.6 billion in notional BTC options expiring, with a put/call ratio near 0.280.29, meaning calls were roughly three times as prevalent as puts. Call open interest was concentrated at higher strikes, especially $70,000 and $72,000, while max pain sat at $64,000, close to spot.
This structure signals traders had been positioning for upside over the previous weeks, but with BTC trading near $63,800$64,300, many of those high-strike calls expired out of the money. That reduces speculative upside exposure and can dampen near-term volatility unless new call buying replaces the expired contracts.
3. Impact And What To Watch
Despite the size of the expiry, BTC stayed in its recent band near $63,000$65,000 and the broader crypto market cap slipped modestly, with total derivatives open interest around $384 billion and down slightly over 24 hours. Options data now show a shift: the $60,000 BTC put has become one of the largest remaining open-interest clusters, reflecting hedging against a possible pullback.
Seasonality studies since 2013 suggest that positive Julys for BTC are often followed by weaker Augusts, and macro conditions and ETF flows remain cautious. The key signals to watch are:
- Whether new call buying rebuilds upside exposure above $65,000.
- How aggressively dealers rehedge after expiry, which can drive short-term moves.
- The behavior of spot ETF inflows and macro data, which could reinforce or counter the emerging bearish tilt around $60,000.
The expiry mainly reset positioning rather than breaking BTC out of its range, so the next move likely depends on fresh options flows, ETF demand, and macro catalysts rather than this event alone.
Conclusion
A roughly $9.57 billion Bitcoin options expiry is a big derivatives event, but it has so far reinforced a rangebound market rather than decisively moving price. Call-heavy positioning has been cleared, downside protection around $60,000 is more prominent, and BTC remains sensitive to dealer hedging, ETF flows, and macro data. For crypto users, this expiry is best viewed as a positioning reset; the next few weeks options and spot flows will matter more than the expiry itself in determining whether BTC breaks out or drifts.
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