On Friday, May 22, 2026, more than $17 billion in Bitcoin and Ethereum options contracts expire on Deribit — the largest single-day options settlement in months — arriving on the exact day that Donald Trump's diplomatic window for Iran closes.
The expiry settles at 08:00 UTC. Jean-David Pequignot, Deribit's chief commercial officer, confirmed to Decrypt that the $17 billion total breaks down to more than $14.5 billion in Bitcoin options and the remainder in Ethereum. The Bitcoin portion alone represents nearly 40% of the $36.5 billion in BTC open interest currently sitting on Deribit.
"Bitcoin's recent surge back toward $71k was catalyzed by President Donald Trump's decision to postpone strikes on Iranian power plants for five days," Pequignot said. "This diplomatic window expires almost perfectly in tandem with Friday's options expiry, exacerbating a localized volatility kink in the term structure."
That is the phrase traders are running with. Two major volatility events — one financial, one geopolitical — on the same calendar line.
The Iran overlay
Earlier this week Trump postponed a threatened strike on Iran's power grid after stating that productive talks with Iranian officials had taken place. Iran denied that any talks occurred. The five-day postponement window expires today. A crypto options settlement of this size would be unremarkable on its own. Paired with an unresolved military standoff in the Middle East, it becomes something the market has to price.
Pequignot's note is as direct as statements from exchange executives get. He is not describing a correlation — he is naming a mechanism: the diplomatic uncertainty is compressing and warping implied volatility in a localized way in the term structure, specifically around today's expiry.
Daniel Reis-Faria, CEO of derivatives firm ZeroStack, told DL News bluntly: "This is a huge expiry, large enough to influence spot prices."
What the derivatives data shows
Despite the setup, Deribit's own data is telling a quieter story ahead of the bell. Pequignot noted that the exchange has observed "an implied volatility compression" across both BTC and ETH contracts as the settlement approached. Traders have been steadily de-risking.
"This suggests the market is pricing in a controlled expiry rather than an immediate explosion in volatility," he said.
Iliya Kalchev, an analyst at crypto lender Nexo, agrees. He told Decrypt to expect a "relatively orderly settlement," but added a measured warning about what follows: "The more interesting question is arguably what happens after — once the options overhang clears, price tends to find its own footing, and some additional activity heading into the weekend would not be surprising."
Total Bitcoin open interest across all exchanges reached $112 billion by Wednesday afternoon, according to Coinglass, which aggregates derivatives data from 24 platforms including CME, Binance, OKX, ByBit, and Deribit. The figure had climbed 8% in a single day.
The September 2025 precedent
The September 2025 expiry — $18 billion notional — provides the closest recent analogue. Heading into that settlement, 30-day Bitcoin volatility had dropped to 0.88%, according to data from BitBo. Within a week of the expiry it had jumped to 1.14%. By the end of the month it had peaked above 2%, following a $19 billion liquidation wipeout that triggered a sharp BTC sell-off.
Today's setup differs in one key respect: 30-day Bitcoin volatility is already elevated. As of Wednesday afternoon it stood at 2.23%, well above the depressed pre-expiry reading that preceded September's move. That baseline elevation cuts both ways — it means some of the post-expiry volatility risk is already priced, but it also means the market is entering the settlement in a more excitable state.
Where BTC stands
Bitcoin was trading at $70,912 on Wednesday, up 2.3% on the day, according to CoinGecko. The move was driven in part by Trump's Iran postponement decision, which lifted risk assets broadly. Bitcoin is up roughly 8% since the US and Israel struck Iran on February 28.
Kalchev framed the current price level as structurally significant regardless of today's expiry: "The broader context, however, is Bitcoin's resilience around $70,000. Holding this level through a period of genuine macro uncertainty — geopolitical tensions, equity market softness, and energy market volatility — reflects reasonably solid spot demand and longer-term holder steadiness."
He pointed to ETF inflows and on-chain accumulation as the variables worth watching for any confirmation that fresh capital is entering the market, as opposed to existing holders rotating positions.
Deribit context
Deribit was acquired by Coinbase in a $2.9 billion deal in 2025. The exchange continues to operate under its own name and remains the dominant venue for institutional crypto options. Today's settlement goes through Deribit's standard process: contracts settle to the BTC and ETH reference indices at 08:00 UTC, and positions that are in-the-money are automatically exercised.
The real test comes after
What the September playbook suggests — and what Kalchev is implicitly flagging — is that the expiry itself may be the calm before the test. When the overhang clears and price action is unconstrained by max pain calculations and hedging flows, the market finds its actual level. With an unresolved Iran situation as backdrop and open interest at $112 billion, the weekend could prove noisier than the settlement itself.
For now, the options data says controlled. The geopolitical calendar says otherwise.
Sources: Decrypt (Pequignot quotes, Kalchev quotes, Coinglass OI data, BitBo vol data, CoinGecko price); DL News (Pequignot note, Reis-Faria quote); Coinglass (BTC open interest aggregated from 24 exchanges including CME, Binance, OKX, ByBit, Deribit).