Bitcoin options traders are positioned heavily for downside protection going into Friday's Deribit expiry, where roughly 15,502 BTC in options — worth about $1.29 billion in notional — are set to roll off. The open interest breaks down into 9,128 BTC in puts and 6,373 BTC in calls, a put-to-call ratio of 1.43 that tilts the book decisively toward bearish hedges.
Where the put walls sit
The heaviest put concentration is at the $80,000 strike, with about $188 million in underlying notional. Another $162 million sits at $78,000, and roughly $101 million at $76,000. Together, those three strikes account for nearly 35% of the $1.29 billion expiry. There's also a separate put cluster worth about $89 million at the $83,000 strike — right near where Bitcoin was trading at the time of Sunday's snapshot.
That positioning makes sense given the past week. Bitcoin briefly dipped toward $80,000 during last week's downturn before recovering to around $83,450 at the Oct. 12 snapshot. The put buying is a hedge against a retest, not necessarily a bet that it breaks.
Volatility cools, skew flips
Implied volatility has come off the boil. Bitcoin's seven-day at-the-money IV slipped to 32.01% from roughly 34.5% a week earlier. The 30-day sits at 34.66%, 90-day at 37.29%, and 180-day at 38.24%. A flatter term structure, but still elevated further out.
The more interesting move is in the skew. Bitcoin's seven-day 25-delta options skew flipped from +1.98 to -2.40 over the past week — a 4.38-point reversal. Laevitas described it as an unwind from a call-bid extreme toward nominally put-bid pricing. In plain English: traders spent the past week rotating out of upside bets and into downside protection.
Perpetual-futures open interest fell 1.9% over the same stretch to roughly $29.33 billion, with annualized funding rates at 5.6%. Not a panic, but the leverage is coming off.
The upside bets aren't gone
It's not all puts. Deribit's call exposure for the Oct. 16 expiry includes about $94 million at the $90,000 strike, $70 million at $87,000, and $55 million at $85,000 — $219 million total in outstanding call notional. Those strikes are well above spot, so they're lottery tickets more than core positioning.
Further out, the Oct. 30 expiry carries roughly $4.54 billion in call notional spread across the $90,000, $95,000, and $100,000 strikes. Whoever's holding those isn't looking for a quick flip this week.
$83,000 is the level to watch
Deribit's maximum pain calculation for the Oct. 16 expiry sits at $83,000 — the settlement level that would minimize the aggregate intrinsic value of outstanding options. That's right where Bitcoin was trading Sunday.
Max pain isn't a prediction. It's a magnet that can pull price around as expiry approaches, especially when a large chunk of open interest sits near the money. With $89 million in puts at that same $83,000 strike, the battle line is clear.
CPI lands Wednesday
The macro calendar isn't helping. MarketWatch's Oct. 12 preview cited expectations for September headline inflation to accelerate to about 3.7% annually from 3.4% in August, partly on higher energy costs, with monthly core forecast to rise 0.2%. The CPI report drops Wednesday, Oct. 14, at 8:30 a.m. Eastern — two days before the options expiry.
Rate expectations have already shifted. Laevitas noted an October rate hike is close to priced out, with December pricing around an 85% probability of a hike. If Wednesday's inflation print comes in hot, those December odds firm up and the put-heavy positioning into Friday's expiry starts to look less like hedging and more like conviction.
The next 72 hours — CPI on Wednesday, expiry on Friday — will tell traders whether the $80,000 put wall is a floor or a target.
