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Free · CBOE delayed (~15 min) · Open methodology

Where options flow,
the market obeys.

Gamma exposure for SPX, NDX, QQQ, SPY, GLD and 6 more — recomputed every 60 seconds from CBOE delayed quotes (~15 min). Open formulas, no paywall on the basic levels. Built for traders who don’t want vendor opinion injected into the numbers.

Data — primary sources, no resellers
CBOEoptions chain
OCCOCC symbology
CMEfutures
FREDrates
YFINANCEintraday OHLC

Capabilities

Gamma Walls

Top-3 call walls + put supports recomputed every 60s

Multi-Expiry Map

0DTE → monthly · per-expiry breakdown, not just blob

Q-Score · 4D

Option · Volatility · Momentum · Seasonality

Vanna · Charm Lab

Closed-form BSM, per-strike, every minute

Live Hero Chart

Candles + heatmap + every level in one frame

01Feature

Gamma walls

Top-3 call resistance, top-3 put support, HVL, gamma flip, max pain — recomputed every 60s from the full CBOE chain.

02Feature

Multi-expiry intelligence

0DTE through monthly — see where dealer hedging concentrates per expiry, not just the cumulative blob everyone else shows.

03Feature

Q-Score · 4 dimensions

Composite signal across Option, Volatility, Momentum and Seasonality — weighted, transparent, every formula documented.

Markets

Pick a symbol

Data: CBOE delayed quotes (~15 min) · Levels recomputed every 60s during market hours · Not financial advice.