LEARN — STRUCTURAL LEVELS
The gamma flip is the price level where net dealer gamma crosses from positive to negative. It is the dividing line between two fundamentally different market environments — and understanding which side you are on changes how you interpret everything.
Above the gamma flip level, dealers are estimated to have positive gamma exposure. Their hedging dampens price moves, compresses volatility, and tends to keep price range-bound. Below the flip, dealers are estimated to have negative gamma. Their hedging amplifies moves, expands volatility, and tends to let trends run.
The same stock can feel completely different depending on which side of the flip it is trading on. A quiet, range-bound morning can turn into a volatile, trending afternoon if price crosses the flip level — not because the news changed, but because the structural environment changed.
The flip level is the price at which the sum of all positive gamma exposure (from all strikes and expirations) equals the sum of all negative gamma exposure. Above that price, the net is positive. Below it, the net is negative. It is an interpolated zero-crossing — the exact point where the aggregate GEX profile crosses zero.
When price is well above the flip, you are in positive gamma territory. Breakout attempts tend to fail because dealer selling absorbs the momentum. Dips tend to be bought because dealer hedging provides support. Range-trading strategies historically perform better in this environment.
When price is well below the flip, you are in negative gamma territory. Moves tend to accelerate. Trends persist because dealer hedging is adding fuel. The tape feels faster and less forgiving.
When price is near the flip, the environment is unstable. Small changes in positioning or price can shift the regime. This is the structural context Gamma Sonar labels as COMPRESSION — and it is often a precursor to a directional move.
Like call walls and put walls, the flip level is dynamic. It changes as options open and close, as new expirations are listed, and as existing positions roll. A flip level at 6,550 at Monday's open might be at 6,580 by Wednesday. Gamma Sonar recomputes the flip from live data every 60 seconds on major indices and every 5 minutes across the full ticker universe.
The flip level is calculated, not observed. It relies on the same assumptions as all GEX computation — primarily that dealers are net short options. If this assumption is materially wrong for a significant portion of the chain, the calculated flip level may not accurately represent the true structural boundary.
Gamma Sonar recomputes GEX from live greeks every 60 seconds on SPX, SPY, QQQ, and major indices — plus 90+ additional tickers on 5-minute cycles.
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