Sierra Chart GEX Indicator
A native Sierra Chart ACSIL study: GEX levels, three distribution columns, a 2D heatmap and cumulative DEX.
Why use HermesGEX on Sierra Chart
HermesGEX ships a native ACSIL study for Sierra Chart — overlaying gamma levels, three right-axis per-strike distribution columns, a 2D gamma heatmap and cumulative DEX lines, plus a top-right read-out HUD. Futures and index CFDs are price-converted automatically, so heavy Sierra users migrate nothing.
Rival tools make you open a separate terminal just to see GEX. HermesGEX doesn't — it overlays institutional-grade gamma exposure, call/put walls and per-strike distribution right on the chart you already trade on. Your execution, risk and data feed stay exactly where they are.
What you get
- Zero / Long / Short Gamma + call/put walls (incl. open-interest version)
- Three right-axis columns: Gamma Profile / GEX by volume / GEX by open interest
- 2D gamma heatmap + three cumulative DEX lines
- Tactical HUD: regime/playbook call + vol microstructure + EOD magnet + reading ladder (off by default)
- Automatic futures / index-CFD price conversion + manual basis calibration
- Browser device authorization to prevent account sharing
How to install
- 1Download and unzip (includes the compiled HermesGex_64.dll + docs)
- 2Copy HermesGex_64.dll into <drive>\Sierra Chart\Data\
- 3Restart Sierra Chart (recommended on first install)
- 4Open a live chart → Chart → Studies → Add Custom Study
- 5Select “Hermes GEX Levels & Distribution” → Add
- 6Sign in to Hermēs → click “Authorize”, and levels appear
Supported instruments
ES · NQ futures and index CFDs with automatic price conversion and manual basis calibration; covers SPX · SPY · QQQ indices/ETFs.
Frequently asked questions
How do I install the GEX study on Sierra Chart?
Copy HermesGex_64.dll from the package into Sierra Chart\Data\, restart, then Chart → Studies → Add Custom Study and pick “Hermes GEX Levels & Distribution” or “Hermes Market Stats”. Authorize once in the browser.
Is it a native ACSIL study or an external overlay?
It is a native ACSIL custom study (.dll) that draws levels, distribution columns, a 2D heatmap and cumulative DEX directly inside Sierra Chart — no external window.
What if futures and index levels do not line up?
It converts futures / index-CFD prices automatically; if the basis drifts, use the built-in manual basis calibration so gamma levels sit exactly on your ES / NQ chart.
Verify for free before you decide
Signing up gives you an ES/NQ GEX preview and the public GEX heatmap — no credit card. The plugin is free to download; live data needs a subscription (Essential and up).
GEX indicators for other platforms
Sierra Chart is a trademark of its owner; HermesGEX is not affiliated with or endorsed by it — this page only indicates compatibility. Market and options data come from official exchange options-chain data and institutional-grade sources; gamma exposure is a model estimate for research only and is not investment advice.