Paints net GEX at every strike, snapshot by snapshot, as a coloured heatmap under the candles for the last few sessions.
In plain English
What it shows
- Net gamma exposure at every strike, snapshot by snapshot, painted under the candles. Mint is positive, red is negative, and clear means close to zero.
- A status note shows how many minutes ago the data was updated.
How traders use it
- Look at where the strongest bands sit and how they moved during the session.
- Compare the bands with where price spent its time, to learn how the two relate.
What it does not tell you
- It shows an estimate of exposure, not orders or trades.
- It cannot show changes inside one snapshot, and it only covers the period that was recorded.
Overview
TradeZoro GEX Heatmap shows how gamma exposure was spread across strikes through the session. Each row is a strike and each column is a 2-minute snapshot. Positive net GEX uses a mint and teal ramp, negative uses red and magenta, and values near zero stay clear so the candles show through.
By default it covers the last 3 sessions at 55% opacity, and a status note shows when the data was last updated (for example 'updated 3 min ago').
How it works
The heatmap is built from the recorded GEX history for SPX, SPY and QQQ. ES and MES use SPX strikes; NQ and MNQ use QQQ strikes scaled by the NDX/QQQ ratio. For futures, the price offset is taken per snapshot from the chart's own bar at that snapshot's time, so the heat lines up with the futures candles you see.
You can choose the expiry (0DTE or 1DTE), the number of sessions (1 to 5) and the opacity. In bar replay only snapshots up to the replay time are used, so nothing from later in the day leaks into the replay.
How to use it
- Some traders watch which strikes hold the strongest positive or negative GEX through the day.
- Use it to see whether a big strike stayed in place or faded across snapshots.
- Some traders compare where price paused with where the heat was strongest.
- Use it next to GEX Levels to see how the current walls built up.
These are ways some traders read it, for learning. They are not trade signals.
Settings
| Setting | Default |
|---|---|
| GEX heatmap | |
| Expiry (Pro: 1DTE)Options: 0, 1 | 0 |
| Sessions shown | 3 |
| Opacity | 0.55 |
| Status note | On |
Notes and limits
- Works on SPX, SPY, QQQ, ES, MES, NQ and MNQ charts.
- Data is recorded in 2-minute snapshots, so it cannot show changes inside a snapshot.
- Before the recorded history begins, the chart reads 'No GEX history for this time'.
Education only. Not financial advice. Indicators mark what happened on the chart; they do not predict what price will do. Trading futures, forex, crypto and other markets carries a high level of risk and may not be suitable for everyone.