GEXRADAR
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About

What is GEXRADAR?

GEXRADAR is a professional-grade options analytics dashboard that surfaces dealer gamma exposure, unusual flow, and key structural levels across equities and indices. It is built for traders who want to understand the mechanical forces that shape intraday price action.

12+
Assets tracked
60s
Data refresh rate
5
Analytics modes
100%
Client-side charts

How it works

Options market makers (dealers) are the counterparty to most retail and institutional options trades. To remain delta-neutral they continuously buy and sell the underlying — creating mechanical, predictable flows that move price.

Gamma Exposure (GEX) measures how aggressively dealers must hedge as price moves. High positive GEX near a strike means dealers must sell rallies and buy dips — compressing volatility and pinning price. Negative GEX means the opposite: dealers amplify moves, expanding volatility.

GEXRADAR computes GEX, DEX, and VEX from live options chain data, then visualises the landscape across all strikes and expirations so you can see where the structural forces are strongest before the session opens.

Glossary

Gamma Flip (Zero GEX)
The strike price at which dealer net gamma crosses zero. Above it dealers are long gamma (stabilising), below it they are short gamma (amplifying moves).
Call Wall
The strike with the highest positive call GEX. Heavy dealer hedging activity creates a natural resistance zone near this level.
Put Wall
The strike with the most negative put GEX. Dealers short puts must sell into declines here, creating a support/magnet level.
Max Pain
The strike at which the aggregate dollar value of expiring options is minimised — where the most contracts expire worthless.
Vol Trigger
The price level at which realised volatility historically accelerates. A move through this level often precedes a vol expansion event.
DEX (Delta Exposure)
Net dealer delta in dollar terms. Positive DEX means dealers are net long delta and must sell to hedge; negative means they must buy.
VEX (Vega Exposure)
Net dealer vega. Indicates directional sensitivity to implied volatility changes across all open positions.
Flow Ratio
Call premium / (Call + Put premium) from unusual prints. > 0.5 is call-skewed (bullish flow), < 0.5 is put-skewed (bearish flow).
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