Bookmap GEX Indicator
Gamma lines and distribution on the Bookmap price axis — one jar also includes Big Trades 3D.
Why use HermesGEX on Bookmap
The HermesGEX Bookmap plugin overlays Zero / Long / Short Gamma lines and per-strike distribution dots on the price axis — stronger strikes render wider, and only ±5% around price is drawn to avoid clutter. The same .jar also carries Big Trades 3D, rendering each large print as a glowing bubble, sharing one launcher authorization with GEX.
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 as three core indicators
- Call Wall / Put Wall
- Top 15 strongest distribution dots by default; toggle Profile / GEX mode
- Draws only ±5% around price to avoid clutter
- Dashboard-window Tactical HUD: regime/playbook call + vol microstructure + EOD magnet + reading ladder (off by default)
- Same jar includes Big Trades 3D; authorize only once
How to install
- 1Download Hermes-Bookmap.jar (GEX + Big Trades 3D)
- 2Remove any old Hermēs Bookmap jar to avoid double-loading
- 3Bookmap → Settings → Api plugins → Add, select the .jar and enable it
- 4Enable the Hermēs studies in the chart Studies list
- 5Sign in to Hermēs → click “Authorize” (shared across charts)
Supported instruments
ES · NQ futures alongside Bookmap’s order-book microstructure; Big Trades 3D flags outsized prints trade by trade.
Frequently asked questions
How do I add the GEX plugin to Bookmap?
Settings → Api plugins → Add, select Hermes-Bookmap.jar and enable it, then tick the Hermēs studies in the chart. Authorize once in the browser. Remove old jars first.
Does this jar also include Big Trades 3D?
Yes. The single Bookmap jar contains both GEX and Big Trades 3D, sharing one launcher authorization — no double install, no double auth.
Which Bookmap versions are supported?
Big Trades 3D supports Bookmap 7.4–7.7; the GEX overlay works on recent mainstream versions. If loading misbehaves, remove old jars and restart Bookmap.
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
Bookmap 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.