Gamma Exposure (GEX) Levels

Get gamma exposure levels for any ticker — total GEX, gamma flip, call/put walls, and the full per-strike profile — in one call.

This Actor returns dealer gamma-exposure (GEX) levels for the stocks and ETFs you care about. Feed it a list of tickers and get back a clean, structured record per symbol: the net GEX, the gamma-flip price, the call wall and put wall, and the complete GEX-by-strike profile — ready to drop into a dashboard, alert, or trading model.

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Screenshots

Pass one or more tickers — no code required.

See the dealer gamma-exposure profile with call and put walls.

Get one clean, structured record per ticker — export anywhere.

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What you get

• Total GEX and gamma regime (positive/negative net gamma)
• Gamma flip price — the level where cumulative GEX crosses zero (from the API when available, otherwise estimated)
• Call wall — strike with the largest positive GEX
• Put wall — strike with the largest negative GEX
• Key levels — the most significant GEX strikes by magnitude
• Full per-strike profile (allLevels) — optional, for charting the whole curve
• Spot price and a fetch timestamp

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How to use it

1. Enter one or more tickers (e.g. SPY, QQQ, MU).
2. Optionally set an expiry (YYYY-MM-DD) to focus on a single expiration, or leave it blank to aggregate across all listed expirations.
3. Run. Export as CSV, Excel, JSON, or via API.

{
  "tickers": ["SPY", "QQQ", "MU"],
  "expiry": null,
  "includeAllLevels": true
}

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Input

Field	Type	Default	Description
tickers	string[]	—	Symbols to fetch GEX for (required).
expiry	string	null	Single expiration YYYY-MM-DD, or blank for all.
includeAllLevels	boolean	true	Include the full per-strike GEX profile.
concurrency	integer	5	Tickers fetched in parallel (1–20).
apiBaseUrl	string	FlowAlpha	GEX API base URL.
apiPath	string	/api/gex	GEX endpoint path on the API host.

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Output

One record per ticker:

{
  "ticker": "SPY",
  "expiry": null,
  "asOf": "2026-08-24T15:32:10Z",
  "marketSession": "regular",
  "spotPrice": 763.47,
  "totalGex": -2298352129.45,
  "netGexDollars": -2298352129.45,
  "gexPerOnePctMove": -22983521.29,
  "gammaRegime": "negative",
  "gammaFlipPrice": 761.2,
  "gammaFlipSource": "api",
  "distanceToFlipPct": -0.3,
  "absGammaStrike": 765,
  "putCallGammaRatio": 1.42,
  "callWall": 768, "callWallGex": 118605732.99, "callWallDistancePct": 0.59,
  "putWall": 763,  "putWallGex": -1087062811.25, "putWallDistancePct": -0.06,
  "levels": [ { "strike": 764, "gex": 511579028.15, "type": "positive" } ],
  "allLevels": [ { "strike": 718, "gex": -29727.2, "type": "negative" }, "… full profile …" ],
  "byExpiration": [ { "expiry": "2026-08-28", "totalGex": -523513045.14, "callWall": 768, "putWall": 763 } ],
  "history": { "prevTotalGex": -1850000000, "changeVsPrevPct": 24.2, "percentile20d": 0.88 },
  "fetchedAt": "2026-08-24T05:10:00.000Z"
}

gammaFlipSource is api when the endpoint supplies the flip, estimated when computed client-side, or unavailable. Enriched fields (netGexDollars, byExpiration, history, …) are populated when the API returns them and null otherwise. See API_SPEC.md for the full endpoint contract.

If a ticker can't be fetched, its record contains an error field instead.

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How it works

The Actor queries a GEX API (FlowAlpha by default) for each ticker, then derives the call wall (largest positive-GEX strike), put wall (largest negative-GEX strike), and a gamma-flip estimate (cumulative-GEX zero-crossing, interpolated between strikes) when the API doesn't supply one directly.

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Notes

• Data source: GEX values come from the configured API (apiBaseUrl). The Actor computes only the derived summary fields (walls, flip estimate, regime).
• Not investment advice. This Actor is a data utility. Gamma-exposure figures are estimates that depend on the underlying data and modeling assumptions; use them at your own risk.

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Changelog

1.0.0

• Initial release.
• Multi-ticker GEX fetch with optional expiry filter.
• Derived call wall, put wall, gamma regime, and gamma-flip estimate.
• Dataset + output schemas with a table view.

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About the maker

Built and maintained by Dheeraj Palakurthi — a developer building options-market and trading-data tools. This Actor is actively maintained and improved based on user feedback.

⭐ If it's useful, a rating helps other traders find it.