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Options dealers don't trade on conviction — they hedge. Gamma exposure tells you which direction that hedging flow pushes BTC and ETH, and whether the market ahead is likely to grind sideways or move fast.
When someone buys or sells a BTC or ETH options contract, the other side of that trade is usually an options dealer or market maker. To stay directionally neutral, dealers hedge their book in the underlying spot or futures market — buying or selling BTC/ETH to offset the changing sensitivity (delta) of their options positions as price moves.
Gamma is the rate at which that sensitivity changes for every $1 move in spot price. Gamma exposure (GEX) aggregates the net gamma dealers are holding across every open strike and expiry into a single number: how much hedging flow the market should expect, and in which direction, as price moves.
The most-watched number in GEX analysis is the flip level — the spot price at which aggregate dealer gamma crosses from positive to negative.
Dealers are net long gamma and hedge against the move — buying dips, selling rips. This tends to suppress volatility and pin price toward large open-interest strikes.
Dealers are net short gamma and hedge with the move — selling declines, buying rallies. This amplifies volatility and tends to produce faster, more trending conditions.
Spot crossing the flip level is itself a regime signal: it often marks the transition between a range-bound, mean-reverting market and a fast, trending one — independent of any other indicator.
Strikes carrying unusually large open interest act like magnets or barriers, depending on which side dominates:
These levels matter most around large expiries — monthly and quarterly BTC/ETH options expiries in particular — since open interest concentrated at specific strikes tends to unwind quickly once those contracts settle, often producing a volatility pickup in the days that follow.
AEON aggregates open interest and implied volatility across listed BTC and ETH options strikes and expiries, converts each into Black-Scholes gamma, and weights it by open interest to produce net dealer GEX — expressed as expected hedging flow per 1% move in spot. The panel plots this by strike alongside current price, marks the zero-gamma flip level, and highlights the largest call/put open-interest clusters as wall levels.
This feeds into the same conviction framework as the rest of the terminal: a spot price sitting well below the flip level with a large put wall close by reads differently — and factors differently into signal conviction — than the same setup happening comfortably above the flip.
Crypto options markets are smaller and less liquid than equity index options, concentrated on a handful of venues, so GEX effects can be outsized relative to notional size but also noisier — a single large block trade can shift the picture. GEX also describes dealer hedging *pressure*, not a guaranteed price target: dealers can hedge with futures instead of spot, hedge asymmetrically, or simply not hedge perfectly. Treat it as a structural bias on volatility, not a precise price prediction.
GEX regime (above/below the flip) is one of the macro-structure inputs behind the signal engine's conviction score — it's read alongside momentum, CVD and funding rather than checked separately.
GEX is a probabilistic structural read, not a certainty. Open interest shifts intraday, dealers don't all hedge identically, and large expiries can invalidate a flip level overnight. Use it as context for position sizing and risk, not as a standalone entry signal.