$415 Million Bitcoin Gamma Flush Looms: The Next 8 Days Are Crucial, Says Analyst
Bitcoin’s choices market has a brand new obsession: Christmas week. In a submit Thursday, energy-sector managing associate David Eng argued the following eight days (December 19 by December 26) may outline the near-term cycle for BTC, not due to a macro headline or some sudden ETF stampede, however as a result of a big chunk of dealer gamma exposure is scheduled to roll off the board in two pictures.
At press time, bitcoin traded round $86,928, after swinging between roughly $84,461 and $89,230 intraday. Eng’s framing is blunt and really “choices individuals”: the market is being mechanically pinned, and the pin has an expiry date
The Hidden Force Holding Back Bitcoin Price?
“The narrative isn’t nearly tomorrow. We are staring down the barrel of a ‘Double-Barreled’ Liquidity Event that can wipe 67% of the complete derivatives board clear by December twenty sixth,” Eng wrote. “Bitcoin is buying and selling at $88,752, deep within the -25% Value Zone (Trend Value: $118k). The spring is coiled, however two huge structural weights are holding the lid down.”
Those “weights,” in his telling, are two expiries with significant gamma hooked up: roughly $128 million tied to Dec. 19 (21% of the overall he tracks) and one other $287 million at Dec. 26, which he calls the “boss stage” ceiling. He labels the mixed $415 million a coming “Gamma Flush,” arguing that after it clears, the hedging drag that’s been compressing spot value motion ought to ease.
The sensible level is much less mystical than it sounds. If sellers are sitting on significant gamma round a decent cluster of strikes, their delta-hedging can dampen volatility and maintain spot gravitating round sure ranges till that publicity decays or expires — the form of “why does this tape really feel glued?” frustration merchants know too properly.
Eng’s map is constructed round very particular strains within the sand: $85k–$90k because the “mud” zone the place hedging strain retains snapping value again, and $90,616 because the flip stage he’s watching across the Dec. 19 expiry.
“Stage 1: The Spark (Tomorrow, Dec 19) — $128 Million in Gamma expires tomorrow (21% of whole). This is the ‘Appetizer.’ It removes the instant suppression pinning us under $90k,” he wrote. “Watch the $90,616 flip stage. If we clear this, the intraday shackles fall off.”
But Eng is clearly extra targeted on the week after. “Stage 2: The Floodgate (Next Friday, Dec 26) — $287 Million in Gamma expires subsequent week,” he continued. “A staggering 46.2% of all seller gamma publicity sits on this single date… Dealers have a quarter-billion-dollar incentive to maintain volatility crushed and value pinned close to $85k-$90k by Christmas to reap this premium.”
The declare, principally: pre-Dec. 26 is “thick mud,” post-Dec. 26 is the tape abruptly respiration once more. “When you mix these two dates, $415,000,000 of gamma — two-thirds of the complete market construction — evaporates within the subsequent 8 days,” Eng wrote. “Before Dec 26: The market is preventing by thick mud… After Dec 26: The mud dries up. The suppression mechanism is gone. The Power Law gravity ($118k) takes over with out the seller counter-flow.”
He additionally tossed out a provocative ratio that’s been circulating in derivatives circles all yr: seller mechanics versus ETF demand. “Dealer Gamma forces are at present ~13x stronger than ETF Flows,” he wrote. “Dealer ~$507.6M, ETF ~$38M. This is why the market is obeying the technical gamma ranges ($85k/$90k) and ignoring the ETF quantity.”
Dealer Gamma forces are at present ~13x stronger than ETF Flows
Dealer ~$507.6M
ETF ~$38MThis is why the market is obeying the technical gamma ranges ($85k/$90k) and ignoring the ETF quantity.
— David
(@david_eng_mba) December 18, 2025
And when critics within the replies questioned whether or not “$287M” is even significant, Eng clarified what the determine is — and what it isn’t. “The $287M determine refers to seller gamma publicity (GEX), not whole choices dimension,” he wrote. “GEX measures how a lot spot Bitcoin sellers may have to purchase or promote to remain delta-neutral as value strikes. It displays hedging strain, not notional worth.”
So the tradeable implication of Eng’s thesis is simple: anticipate the pinning video games into Christmas, then watch whether or not a post-expiry regime shift really reveals up in realized volatility — and in value’s potential to cease bouncing off the identical ranges prefer it’s hitting invisible glass.
At press time, Bitcoin traded at $87,953.

(@david_eng_mba)