Where can you get free GEX levels and charts?
Free gamma exposure (GEX) data does exist, and SpotGamma publishes some of it: the free SPX Gamma Exposure chart shows the current gamma landscape for the S&P 500, updated daily, alongside the free options profit calculator. Beyond that, the free tier of the GEX ecosystem includes academic-style datasets (SqueezeMetrics’ original GEX series), various community dashboards, and screenshots that circulate daily on trading social media. For a trader deciding whether gamma matters to their process, free data is the right way to find out.
What do free GEX levels actually show?
Almost all free GEX data is built the same way: take public open-interest data (which updates once daily, before the open), apply a fixed assumption about who holds the contracts — typically that dealers are short every call and long every put — and sum the result by strike. That produces a daily map of where gamma is concentrated: the big strikes, the aggregate positive/negative reading, and the approximate flip point. It’s genuinely useful context, and it’s why free GEX charts from different sources mostly agree — they’re computed from the same inputs with the same assumption.
What does free GEX data miss?
Three things, in increasing order of importance. Intraday change: open-interest-based GEX is a snapshot from yesterday’s close; large trades during the session — a big collar roll, heavy 0DTE flow — reshape the landscape in real time, and a once-daily chart can’t see it. Single stocks: free GEX is almost always index-level; the same mechanics drive individual names, where positioning is often more extreme. Who actually holds the positions: the “dealers are short all calls, long all puts” assumption is the known weak joint of every free GEX calculation — when it’s wrong for a given name or expiry, the levels are wrong with it. SpotGamma’s paid data exists specifically to close those three gaps: intraday updates, 3,500+ single stocks, real-time hedging flow via HIRO, and SGOI’s estimates of how market makers and buyside are actually positioned rather than assumed to be.
Is there free GEX for SPY, QQQ, or futures?
Index-proxy GEX (SPX) is the standard free offering, and because SPY, QQQ, ES, and NQ all track the same underlying complexes, SPX/NDX gamma levels translate to those products with an arithmetic conversion — most futures traders using gamma levels are using index options data mapped onto their contract. Dedicated per-ticker GEX for SPY, QQQ, or individual stocks is generally where free tools stop and paid platforms begin. (A deeper guide: Gamma Exposure explained.)
When is free GEX enough — and when isn’t it?
Free daily GEX is enough to learn the framework, check the regime (positive or negative gamma), and know the handful of strikes that matter this week on the index. It stops being enough when your process depends on what changed today (0DTE flow now dominates short-dated gamma), on single-stock positioning, or on distinguishing a wall that dealers will actually defend from a pile of open interest they don’t hold. The honest framing: free GEX shows you the map from yesterday; paid positioning data shows you the battle happening on it.
Last updated: August 2026 — Published by SpotGamma. Start with the free SPX GEX chart, and see how to trade GEX levels for the playbook.