Roughly $16 billion in Bitcoin options expire on Deribit at 08:00 UTC Friday, Sept. 25, with calls making up about 60% of the open interest. Bitcoin trades near $86,300 heading into settlement, and three more events — durable goods data, consumer sentiment, and CME futures settlement — follow within seven hours. The outcome hinges on whether real buyers hold the rally once the expiry's hedging flows unwind.
$16 billion book expires Friday
Bitcoin options carrying roughly $16 billion in notional value expire on Deribit at 08:00 UTC on Friday, Sept. 25. Calls account for about $9.6 billion of that open interest and puts for about $6.4 billion.
The asset trades near $86,300 heading into the settlement, after climbing above $85,000 this week. Two US economic releases and the expiry of CME's September Bitcoin futures follow within seven hours, stacking three separate tests into one trading day.
Ledn co-founder Mauricio Di Bartolomeo frames Friday as the second half of an expiry cycle that began on Wall Street, according to a note he sent to CryptoSlate. Options on BlackRock's iShares Bitcoin Trust expired last week in IBIT's largest single expiration on record, and he described that book as heavily tilted toward calls. In his account, Bitcoin's rally through $80,000 pushed many of those calls into the money, and dealers short those contracts bought IBIT shares to stay hedged. He expects a similar dynamic to repeat on Deribit's book at the $85,000 and $100,000 call blocks if the move continues.
Gamma model points to a stabilizing zone
ByKaranteli's open-source gamma model places the largest call wall at $95,000 and the largest put wall at $60,000, with the zero-gamma level near $71,000. Above that level, dealers who are net long gamma sell into rallies and buy dips, damping moves; below it, they buy as price climbs and sell as it falls, amplifying whatever move is underway. With Bitcoin trading in the $86,000 zone, the model places the market comfortably inside the zone it treats as stabilizing.
Deribit's DVOL index stood at 38.1 on Sept. 22, a reading ByKaranteli classifies as very low across five years of history. A one-standard-deviation move through Friday works out to about $2,720, or 3.15%, placing a rough band between $83,600 and $89,100 — leaving the $95,000 call wall as a distant target.
Macro data follows the reset
Once Deribit's contracts settle, the hedges tied to them unwind or roll into October and December expiries. US durable goods orders arrive at 12:30 UTC, the University of Michigan's final September consumer sentiment reading lands at 14:00 UTC, and CME's September Bitcoin futures settle against the CME CF Bitcoin Reference Rate at 15:00 UTC. The Fed raised its target range to 3.75% to 4.00% on Sept. 16, leaving both data points relevant to rate-sensitive assets.
US spot Bitcoin ETFs took in $159.5 million on Sept. 17, $433 million on Sept. 18 and $999 million on Sept. 21, according to Farside Investors. Monday's rally also included about $647.9 million in short liquidations out of $746.6 million in total liquidations over 24 hours, while aggregate crypto open interest climbed 7.59% to $156 billion.
The bull case has Bitcoin climbing toward $90,000 before settlement while ETF inflows continue and funding stays positive at moderate levels. The bear case has Bitcoin stalling between $88,000 and $90,000 as ETF flows slow. In that scenario, Bitcoin slides toward the lower edge of the implied band near $83,600, with $80,000 as the next level beneath it.
Source: CryptoSlate
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