What Is the Gamma Flip? Zero Gamma Level Explained
The gamma flip is the boundary between a calm market and a volatile one, expressed as a single price.
What is the gamma flip?
The gamma flip is the underlying price at which total dealer gamma exposure crosses from positive to negative. Above the gamma flip, dealer hedging suppresses volatility. Below the gamma flip, dealer hedging amplifies volatility, so the same news produces a far larger move.
Why does the gamma flip matter so much?
The gamma flip separates two different markets that require different tactics. Above the flip, fading extremes and selling premium tends to work. Below the flip, trend following works and mean reversion becomes dangerous, because every decline feeds further dealer selling.
How do you find the gamma flip level?
Finding the gamma flip requires recalculating total gamma exposure at a range of hypothetical spot prices and locating the price where the total crosses zero. The level is not simply the midpoint between adjacent strikes whose bars change sign on a chart.
What happens when price crosses the gamma flip?
Crossing below the gamma flip typically widens the intraday range, increases overnight gap risk, and raises the reliability of breakout continuation. The Obsidian desk reduces mean reversion sizing, widens stops to respect the larger range, and extends profit targets whenever the underlying trades beneath the flip level.
Frequently asked questions
Is the gamma flip the same as zero gamma?
The two terms describe the same level. Gamma flip, zero gamma and volatility trigger are used interchangeably across positioning tools.
Does every ticker have a gamma flip?
Every underlying with a meaningful option chain has one, but the level is only useful where option open interest is large enough for dealer hedging to influence the underlying.