Roughly 135,000 bitcoin options contracts, worth about $10.9 billion, expire on Deribit at 08:00 UTC on Friday, October 30, closing out a bitcoin options expiry cycle that has traders hedging for a sharp move. The monthly settlement accounts for about a third of all open bitcoin options on the exchange, according to Deribit data cited by CoinDesk and Binance, and it arrives two days after the Federal Reserve held interest rates steady.

The level traders watch most is the max pain price, the strike where the most option value would expire worthless. That level sits at $78,000, below where bitcoin has traded this week, according to Deribit data. The put/call ratio stands at 0.53, meaning roughly one put is open for every two calls, a shape that looks bullish at first glance but hides a catch: most of the open calls sit at strikes well above current prices and would expire worthless if prices hold near current levels.

Bitcoin options expiry pricing points to caution

Pricing tells a more cautious story than the headline ratio. Deribit executive Jean-David Pequignot told CoinDesk that the break below the eighty-thousand-dollar mark pushed short-dated skew heavily toward puts, with puts priced more than 10 volatility points above calls. Puts pay out if prices fall, while calls pay out if prices rise, so the gap means traders are buying insurance against a drop rather than betting on a rally. Pequignot added that short-dated options show a pronounced smile in implied volatility, with the downside side in particular demand as traders scrambled for protection.

Hedging flows around the bitcoin options expiry could move prices on their own. About 70% of gamma in the expiring options is concentrated near current price levels, Adam Hames, head of asset management at Tesseract Group, said, according to Bloomberg. Gamma measures how much dealers must adjust their hedges as prices move. If dealers are short options, Hames said, hedging-related selling on further declines could deepen losses in the zone below current prices.

Ether faces its own settlement on the same morning. Ether options worth roughly $776 million also expire on Deribit, with a max pain level above ether's current price and a put/call ratio of 0.77, according to Deribit data. Ether puts have also traded at a premium to calls, a sign that downside worries extend beyond bitcoin.

A nervous week, and a vote still to come

The expiry caps a week covered in earlier reporting on the Fed meeting slide, in which bitcoin dipped under the eighty-thousand-dollar mark during Asian trading, dragging the wider market lower and triggering $356 million in liquidations of leveraged long positions over 24 hours, according to CoinDesk. The Federal Reserve held its benchmark rate in a range of 3.75% to 4% on Wednesday, with two officials dissenting in favor of a quarter-point increase, and Chair Kevin Warsh declined to signal what comes in December. United States spot bitcoin exchange-traded funds still took in $137 million on Wednesday, a third straight day of inflows, according to Farside Investors data cited by CoinDesk.

Volatility may not fade once the contracts settle. Caroline Mauron, co-founder of Orbit Markets, told Bloomberg she expects option sellers to slow the supply of new contracts until the outcome of the November 3 midterm elections becomes clear, which could leave price swings less cushioned. The election result also matters for momentum behind the Trump administration's crypto-friendly policy push, and a Bloomberg Markets Pulse survey found that surveyed traders saw a higher year-end bitcoin price if Republicans hold Congress than if Democrats take both chambers.

For traders, Friday's bitcoin options expiry clears a month of positions built up around the expiry, and attention then turns to the election and to whether buyers step in near the levels where the most option value sat. Until then, the premium on downside protection shows how traders are positioned: hedged for a drop, with the cost of that insurance still climbing. Full coverage of the expiry pricing is available from CoinDesk, and the week in crypto markets is covered by CoinDesk's market report.