Glossary · crypto options in plain English
When a market maker sells options, he does not sit on naked risk: he hedges — buying or selling the underlying as price moves. Depending on his aggregate gamma, that hedging does one of two opposite things: it dampens the move or it amplifies it.
The gamma flip is exactly the price where one regime switches into the other: the line between a market that smothers moves and a market that accelerates them.
When market makers are long gamma (positive gamma), their hedging trades against the trend. Price drops — they buy; price rallies — they sell. In effect they keep pushing price back toward the middle.
The result is a calm market: moves get dampened, the range stays tight, and spikes dissolve almost as fast as they appear. The hedging mechanics themselves act as a shock absorber.
When they are short gamma (negative gamma), the logic inverts completely. Now the hedge trades with the trend: price rallies — they have to buy; price falls — they have to sell. Instead of braking the move, they feed it.
That produces an accelerated market: moves get amplified, volatility rises, and a drop can snowball into a deeper drop because the hedges push the same way. This is the regime where the violent moves are born.
Between those two worlds runs a line — the flip point, where aggregate gamma equals zero (zero-gamma). Above it the market leans toward quiet; below it, toward acceleration. It is not a wall and not a magnet — price crosses it without trouble — but the crossing changes the market's character, not just its level.
To know which side you are on right now, traders use a metric — gamma exposure, or GEX. GEX sums the gamma of all open option positions and estimates how market makers will have to hedge at each price level. It is usually expressed in dollars per 1% move — how much of the underlying the hedges would have to buy or sell if price shifted one percent.
The gamma flip is simply the price at which GEX crosses from positive to negative.
Gamma flip at a glance
The gamma flip does not say where price goes — up or down. It says how a move will behave once it happens: in positive gamma, options absorb; in negative gamma, they amplify.
The gamma flip belongs to the same family of reads as option walls and max pain: all of them grow out of open interest and out of how market makers behave around the strikes with the most contracts.
Walls show where options are concentrated; the gamma flip shows which regime price is in relative to that concentration. A wall just above the flip, with price in positive gamma, usually reads as a sticky ceiling; the same wall in negative gamma loses that dampening effect. They read better together than apart.
Every morning we check which gamma regime BTC and ETH are trading in — positive or negative. That answers the question that precedes any strategy: expect quiet or expect acceleration?
Our daily brief publishes the call wall, put wall and zero-gamma for BTC and ETH every day. What stock-market services charge $40+ a month for, we post free every morning. It is not a signal by itself but a regime context that frames everything else: we cross it with the option walls to see where price stands relative to the options structure.
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Educational content and a system decision journal. Not financial or investment advice.