Liquidity heatmap
Also called: Order book heatmap, Bookmap-style heatmap, Depth heatmap, DeepDom
In short. A liquidity heatmap paints the history of the order book on the chart: at each price and each moment, the resting size is drawn as a colour, from dark (little) to bright (a wall). It shows where large limit orders sat, when they were pulled, when they were refilled, and how price reacted, which a live DOM cannot show once the moment has passed.
Patterns to learn first: a bright wall that holds (support or resistance, and a stop level), a wall that is pulled as price approaches (a trap, price usually goes through), a wall that refills after being hit (an iceberg, absorption). With the footprint, the heatmap tells you whether the aggression met a wall or empty air.
The heatmap needs a feed that provides full depth; the data behind it differs between platforms and prop firms. The article 'Reading the liquidity heatmap' on this site covers the three patterns with DeepDomOFF screenshots.
Questions traders ask
What is Liquidity heatmap?
A liquidity heatmap paints the history of the order book on the chart: at each price and each moment, the resting size is drawn as a colour, from dark (little) to bright (a wall). It shows where large limit orders sat, when they were pulled, when they were refilled, and how price reacted, which a live DOM cannot show once the moment has passed.