A Bitcoin hedge using a put with a $70,000 strike more than doubled in BTC terms between November 12 and 13, even as its reported implied volatility fell. On November 13, Deribit’s broad volatility gauge hovered near 40, showing why a calm index alone cannot reveal the cost of protecting a holding.
Deribit observations from November 12–13 show its November 27 $70,000 put traded at 0.0145 BTC at 11:51 UTC on November 12 and 0.033 BTC at 10:15 UTC on November 13, an increase of 127.6% in BTC terms. Yet the implied volatility reported for those executions fell from 38.97% to 37.67%.
Bitcoin’s index price at the two trades fell from $72,805.71 to $69,320.08, taking it from above the fixed strike to below it. A put provides protection against a fall below that strike at expiry. As Bitcoin falls, that fixed protection can become more valuable even without higher implied volatility.
For a new buyer at 10:40:51 UTC on November 13, the contract’s order book showed a 0.0325 BTC bid and a 0.0335 BTC ask. With the index at $69,245.85, that ask equaled about $2,319.74 for one contract before fees. The 127.6% increase compares executed BTC prices, rather than measuring a change in executable asks.
A fixed strike changes the Bitcoin hedge bill
A protective put’s premium is the price of protection at a specified strike and expiry. Implied volatility is one component of that price. The underlying price, the strike, the forward price and the time remaining also matter. CryptoSlate’s crypto options platform comparison explains how contract design, settlement and execution costs differ across venues.
The two executions do not isolate how much of the premium change came from each pricing input. The contract also had less time remaining at the second trade.
The currency of the quote adds another difference. Deribit’s inverse Bitcoin options are priced in BTC, and one contract represents one BTC. Converting each selected trade at its own contemporaneous index gives about $1,055.68 on November 12 and $2,287.56 on November 13. The increase in those dollar equivalents was 116.7%, smaller than the BTC-denominated increase.
The $70,000 strike also does not promise a $70,000 net sale price. The buyer pays the BTC premium upfront, and trading fees, delivery fees, currency conversion and the settlement reference affect the net result. At expiry, an in-the-money inverse put settles through an immediately settling inverse futures contract into BTC, with the economic result of cash settlement. An out-of-the-money put expires worthless.
A fixed-strike put can cost more as Bitcoin falls, without a rise in its implied volatility.
Different-sized executions, not matched executable bid/ask quotes. Same expiry, different time remaining and moneyness. IV is reported for each trade, not DVOL. Prices exclude fees; the $70,000 strike is not a net sale-price guarantee.
Deribit defines DVOL as forward-looking, annualized implied volatility over 30 days, assembled across strikes and expiries. The November 27 put had roughly 14 days remaining. One broad index and one shorter-dated contract therefore describe different exposures.
The completed November 13 hourly buckets from 00:00 through 09:00 UTC recorded intrahour lows and highs spanning 39.03 to 41.58. The 09:00 bucket closed at 39.93; the 10:00 bucket was still incomplete when captured at 10:40 UTC.
A November 13 analysis by The Daily Digits on CryptoQuant supplies historical context. It reports DVOL of 40.77 against a median of 77.8 across 290 daily closes since March 2021 when Bitcoin was at least 17.4% below its rolling 30-day closing high. Its median for qualifying 2026 observations was 49.9, a closer current-year benchmark.
Those daily observations can overlap within a single selloff. They are not 290 independent crises, and the study does not give an exact intraday timestamp tying its reading to the put quotes. The comparison establishes the study’s historical framing, rather than a fair price for this hedge.
The observations preceded the PPI release window
October’s Producer Price Index was scheduled for November 13 at 08:30 Eastern, or 13:30 UTC, after these market observations. The scheduled inflation release provides a clear checkpoint for observing any repricing; it does not establish a cause for the earlier move.
A useful before-and-after comparison would track the same contract’s bid, ask and implied volatility alongside its forward price and time remaining, then examine pricing across strikes. That separates a change in the cost of buying protection from a change in volatility pricing more clearly than DVOL alone.
For a holder, the immediate consequence is already visible: maintaining a Bitcoin hedge at a fixed dollar strike can become more expensive as Bitcoin falls, even while the broad volatility gauge remains subdued.