In crypto, the term buy wall refers to a situation where there is a large pool of buy orders placed at the same price or close to the current market price on a trading platform.

The visualization of a buy wall resembles a wall as it displays the buildup of a large number of buy orders at a certain price level in the order book chart. When there are many buy orders placed in significant amounts at a certain price level, it creates a wall-like appearance on the chart. A buy wall may appear as a thick horizontal line on the order book chart indicating high demand at that price.