Product / 5 min
How to Read the GEX Edge Heatmap
A product-first guide to strike rows, expiry columns, red and green intensity, and what the grid is not saying.
The GEX Edge heatmap is a map of pressure, not a prediction machine.
It shows where net gamma is concentrated across strikes and expirations. The goal is not to memorize every cell. The goal is to see where the market has friction, where it has air, and which expirations are doing the work.
The One-Line Read
Rows are strikes. Columns are expirations. Color shows net GEX intensity. Stronger color means more structural pressure at that strike and expiry.
Green usually means positive net GEX. Red usually means negative net GEX.
Use the grid to find the zones that can slow price down, pin it, or let it accelerate.
What The Rows Tell You
Each row is a strike.
When you scan down the rows, you are asking: where is the options book crowded?
A heavy row near spot matters more than a heavy row far away. Price has to reach the level before the hedge pressure becomes relevant.
The clean read is:
- Heavy positive zone near spot: possible magnet or brake.
- Heavy negative zone near spot: possible acceleration zone.
- Thin zone between heavy areas: possible path of least resistance.
Do not overread a single cell. Look for clusters.
What The Expirations Tell You
The columns show where the exposure lives in time.
Same-day and this-week exposure can shape intraday behavior. Farther expirations can define bigger structural zones but may not control every five-minute candle.
This is the basic hierarchy:
- 0DTE: strongest intraday urgency.
- This week: useful for the current swing and weekly range.
- Full chain: bigger context, less precise for the next candle.
If 0DTE is stacked at one strike, treat the day with more pin awareness. If full-chain structure is heavy but near-term structure is thin, expect the live tape to matter more.
What It Means On GEX Edge
The dashboard gives you the simpler read first: spot, pin, gamma flip, range, and key levels.
The heatmap is where you go when you want to see the "why."
It helps answer:
- Is this level backed by one expiry or the whole chain?
- Are the important strikes clustered or spread out?
- Is the nearest path cleaner above or below spot?
- Does the 0DTE picture agree with the full-chain picture?
When the dashboard says range day and the heatmap shows a thick positive cluster around spot, the read has support. When the dashboard warns of acceleration and the heatmap shows thin air below the flip, the warning has support.
When It Works
The heatmap is most useful before the trade.
Use it during premarket, after the opening range, and before entering around a major level. It is less useful if you stare at it every two minutes and try to make every candle fit the grid.
The best habit is to mark the important zones, then watch how price behaves when it gets there.
When It Fails
The heatmap can lag the live tape if new flow changes the structure intraday. It also does not know whether a macro headline is about to hit.
It shows options pressure. It does not show your stop, your risk, your fill quality, or whether you are revenge trading.
Mistake To Avoid
Do not treat red as bearish and green as bullish.
That is the beginner mistake.
Green can mean resistance above and support below. Red can mean acceleration, but the direction depends on where spot is and how price is moving.
Color tells you hedge behavior, not a buy or sell signal.
Quick Check
Before acting on the heatmap, ask:
- Which expiry is driving the level?
- Is spot close enough for the level to matter?
- Is the zone positive, negative, or mixed?
- Is price rejecting, accepting, or ignoring the zone?
- Does the heatmap agree with the main dashboard read?
If you can answer those five, you are using the heatmap correctly.