A $22.3 Billion Crypto Options Expiry Reset Quarter-End Positioning

Deribit’s quarter-end bitcoin and ether options expired at 08:00 UTC on September 26, 2025 with a reported combined notional value of about $22.3 billion. The concentration made the settlement one of the largest crypto-options expiries then recorded and put derivatives positioning at the center of a week in which both assets had been under pressure.

A contemporaneous Decrypt report, citing Deribit’s official notice, put expiring bitcoin options at $17.06 billion. Subtracting that figure from the reported $22.3 billion combined total implies approximately $5.24 billion for ether; that second figure is a Coinburn calculation, not a separately reported exchange total. Because notional value moves with the underlying assets’ prices and traders can close or roll positions before expiry, the headline amount should be read as a pre-settlement snapshot rather than an immutable cash transfer.

What actually expired

Deribit’s rulebook in force during 2025 described its bitcoin and ether options as European-style and cash-settled. European-style meant they could be exercised only at expiry. The rulebook set daily settlement at 08:00 UTC and said an expiring derivatives position was settled at the applicable settlement price, with profit or loss credited to or deducted from the member’s account.

That mechanism matters for interpreting the $22.3 billion figure. It represented the face value of outstanding contracts, not $22.3 billion of bitcoin and ether changing hands, not the premium originally paid for those options and not the amount won or lost. Out-of-the-money options could expire without a payout, while in-the-money contracts generated settlement gains and losses based on their terms.

The reported mix was weighted toward bitcoin: $17.06 billion equaled about 76.5% of the $22.3 billion combined estimate, another Coinburn calculation. Decrypt described the bitcoin batch as the largest expiry then visible on Deribit’s board. That characterization was contemporaneous, but Coinburn did not locate a preserved contract-level export that independently reconstructs the complete open-interest book immediately before settlement.

Prices stabilized after an unsettled week

The expiry did not produce a simple event-day collapse in the surviving end-of-day data. CoinMarketCap’s September 26 historical snapshot, which its API documentation describes as an end-of-UTC-day reading, placed bitcoin at $109,712.83. The provider showed BTC up 0.61% over 24 hours but down 5.17% over seven days. Ether was $4,035.89, up 4.33% over 24 hours and down 9.73% over seven days.

Those figures describe CoinMarketCap’s aggregated snapshot, not a universal close; crypto trades continuously across venues. Contemporaneous intraday reports recorded bitcoin below $109,000 before the snapshot. The difference is a reminder that a timestamp and measurement window are essential when describing a 24-hour market.

Macro data arrived after Deribit’s settlement. At 08:30 Eastern time, or 12:30 UTC, the U.S. Bureau of Economic Analysis reported that the August personal consumption expenditures price index had risen 0.3% from July and 2.7% from August 2024. Excluding food and energy, it rose 0.2% month over month and 2.9% year over year. The release was part of the risk backdrop, but its timing means it could not have caused the 08:00 UTC expiry.

A market-structure milestone, not a forecast

The consequential fact on September 26 was the scale of short-dated risk reaching one settlement point. Large expiries can alter dealer hedging and remove outstanding exposures, but open interest alone does not reveal whether every holder was bullish, bearish or hedged elsewhere.

The defensible conclusion is therefore limited: Deribit processed a roughly $22.3 billion quarter-end options expiry while bitcoin and ether remained down over CoinMarketCap’s seven-day window. The expiry documented the growing institutional scale of crypto derivatives; it did not, by itself, establish the market’s next direction or prove that options caused the preceding week’s losses.