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Derivatives · Heatmaps
Strike × expiry
heatmaps
— where open interest and the gamma floor pile up.
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Gamma (GEX)
IV Surface
IV Surface · strike × expiry
implied volatility map (cold → hot)
OKX
0s ago
▸ How is this computed?
Average implied volatility (%) per cell. Cold (teal) = low IV, hot (gold/red) = high IV. Combines the volatility smile and the term structure in one view — the 2D form of the vol surface.