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Bitcoin (BTC) is trading at $75,889 on April 30, consolidating after Powell’s final FOMC press conference delivered a rate hold at 3.50-3.75% and cautious language on inflation, as per data from CoinGecko.
The pullback from $78,000 fits a familiar pattern: BTC has now dropped within 48 hours of 9 of the last 10 FOMC meetings. But the force controlling the next four weeks is not the Fed. It is the options market.
Analyst David Eng’s April 30 analysis lays out the derivatives structure with precision. Net dealer gamma exposure (GEX) sits at -$76M, with the gamma flip level at $70,933. The call/put gamma asymmetry reads 1.68x, meaning call-side gamma outweighs puts by nearly two to one. Realized volatility is at 37.2%.
His key framing: ‘This is still pinned price action, not broken price action.’
80K Is Still the Magnet. 70K Is the Support.
BTC spot: $76,210
Net dealer GEX: -$76M
Gamma flip: $70,933
Call/put gamma asymmetry: 1.68x
Realized vol: 37.2%This is still pinned price action, not broken price action.
80K key level:
75K is still local support.
70K is now the… pic.twitter.com/x7Px3XSB6J— David (@david_eng_mba) April 29, 2026
Bloomberg confirmed the same thesis on April 29, reporting that options traders have built an ‘electric fence’ around $80,000 through concentrated call selling.
Dealers short call options near $80K must sell Bitcoin as the price approaches that level to stay delta-neutral, creating an artificial supply that caps rallies. On the downside, gamma around $75K forces dip buying. The result is a hedging-driven range, not conviction.
BTC has tested $79K–$80K five times since April 17 without a single close above $79.5K – each move was mechanically sold. $80K isn’t traditional resistance; it’s a call wall where dealer flows create an artificial ceiling.
The lid has a clear expiry. $108M in gamma, 33.6% of total, rolls off May 29. As that dealer positioning unwinds, the hedging that’s pinning Bitcoin between $75K–$80K fades, shifting the market from suppressed to flow-driven.
Eng’s December 2025 framework provides the precedent. In that instance, $415M in gamma expired over eight days (December 19-26), removing the mechanical ceiling at $90,000. BTC broke out to $96,000 within 48 hours of the final expiry. The current gamma load of $108M is smaller in absolute terms.
The $415M Gamma Flush: Why The Next 8 Days Define The Cycle
The narrative isn't just about tomorrow. We are staring down the barrel of a "Double-Barreled" Liquidity Event that will wipe 67% of the entire derivatives board clean by December 26th.
Bitcoin is trading at $88,752,… pic.twitter.com/129fNnUxjs
— David (@david_eng_mba) December 18, 2025
Eng frames it clearly. $80K is resistance, $75K is local support, and $70K is the regime line. A close below $70K signals a true trend break, not just another dip. The gamma flip near $70.9K reinforces this floor. Below it, dealer hedging shifts from stabilizing to amplifying moves in Bitcoin.
The 1.68x call to put gamma skew adds a bullish tilt. With more gamma above spot than below, the unwind of call side hedging after expiry creates more upside room than downside. This does not guarantee a breakout, but it does shift the mechanical bias higher.
The gamma framework exists within a macro context that is pulling in the opposite direction. Powell’s final FOMC acknowledged that Brent crude above $110, driven by the UAE’s OPEC exit and ongoing Hormuz disruptions, poses a persistent inflation risk.
The March FOMC precedent is instructive: hawkish language produced a 5% BTC decline and $708M in single-day ETF outflows. If the post-FOMC selloff deepens toward the $70,933 gamma flip level before May 29, the mechanical floor weakens before the ceiling comes off, an asymmetrically bearish setup.
The structural bid provides the counter. Spot BTC ETFs recorded 9 consecutive inflow days through April 24, totaling $2.12B, as per data from SoSoValue. The 9-day streak broke on April 27 with a $263M outflow. Whether flows resume positively this week determines whether the $75K local support holds through to the May 29 gamma release.
Data and charts from TradingView show that BTC at $75,889 prints a narrow-range candle, consistent with Eng’s pinned price action thesis.
$78K has flipped to resistance after failing to hold above it. Higher lows remain intact as long as $70,933 holds. Below that gamma flip, dealer hedging amplifies moves and the structure in Bitcoin breaks.
Resistance: $78,000 (dotted line), $80,000 (call wall/pin target), $82,500 (EMA200). Support: $75,478 (today’s low), $74,395 (Strategy cost basis), $70,933 (gamma flip/regime line).
The next 29 days resolve the setup. Price is pinned, not broken. The pin expires May 29 when 33.6% of total gamma rolls off. Until then, every rally toward $80K is sold mechanically, and every dip toward $75K is bought mechanically.
After May 29, BTC moves on fundamentals. The question is which side of $75,889 the fundamentals favor when the options market finally lets go.
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