Zero Gamma (Gamma Flip) Level Explained
The zero-gamma level — the gamma flip — is the price where dealer gamma exposure changes sign. Above it the market tends to be calm and mean-reverting; below it, volatile and trending. It is the single most important GEX level.
Senzoukria · Learn · Updated June 2026
Of all the gamma exposure levels, one matters more than the rest: the zero-gamma level, also called the gamma flip. It is the price where dealer gamma changes sign — and with it, the entire behavior of the market.
What the flip is
Dealer GEX is positive at some prices and negative at others. The price where it crosses zero is the flip:
- Above the flip: net positive gamma → dealers stabilize → calm, mean-reverting.
- Below the flip: net negative gamma → dealers amplify → volatile, trending.
So the same market has two personalities, split by one line. That is why the flip is the first level many options-aware traders mark each day.
Why hedging reverses at the flip
Above the flip, dealers are long gamma: they buy dips and sell rallies, which pushes price back toward the high-gamma strikes (see gamma walls). Below the flip, they are short gamma: they sell dips and buy rallies, so their hedging now chases price. A selloff that crosses below the flip can therefore feed on itself.
Trading the regimes
- Above the flip (positive gamma): fade extremes, expect ranges, trade mean-reversion. Breakouts often fail.
- Below the flip (negative gamma): trade with momentum, size down, and be careful fading — moves can extend further than they "should".
- At the flip: transition zone. Volatility rises, whipsaws are common; wait for the market to pick a side.
The flip as a regime signal
A clean break below the zero-gamma level is one of the cleaner regime signals in markets: it says "the dampeners are off." Reclaiming it back to the upside often restores the calm, mean-reverting behavior. Watch how price behaves at the level — a decisive break with momentum is different from a brief poke that gets bought back.
Common mistakes
- Buying dips the same way below the flip as above it — below, dips can keep going.
- Treating the flip as a fixed line — it moves as positioning and open interest change, and resets around expiry.
- Ignoring the tape. Confirm the break with order flow — a cumulative delta that supports the move adds conviction.
Key takeaway: the zero-gamma flip splits a calm, mean-reverting market (above) from a volatile, trending one (below). Know which side you are on before you pick a strategy.
Watch the flip in real time
Senzoukria marks the zero-gamma level with the call and put walls, right next to your footprint — so you can see the regime and the tape together. Free preview, no card — start here.
Frequently asked questions
- What is the zero-gamma (gamma flip) level?
- The zero-gamma level is the price at which total dealer gamma exposure (GEX) changes sign. Above it, dealers are net long gamma (stabilizing); below it, net short gamma (destabilizing). It is the pivot between a calm regime and a volatile one.
- Why does the gamma flip matter?
- Because dealer hedging behavior reverses at the flip. Above it, hedging dampens moves (mean-reversion). Below it, hedging amplifies moves (trending, higher volatility). Breaking the flip often marks a regime change, so traders watch it closely.
- How do you trade around the gamma flip?
- Above the flip, favor mean-reversion and fading extremes. Below it, favor momentum and respect that selloffs and rallies can accelerate. Right at the flip, expect a transition zone with elevated volatility and false moves.