Depth Chart

A depth chart is a visual representation of an order book, showing the cumulative amount of buy and sell orders at each price level. Bids are typically drawn as a green slope on the left rising away from the current price, asks as a red slope on the right; the height at any price shows how much total volume rests between there and the current price.

For example, if a depth chart for ETH/USDT shows the green side reaching 500 ETH by $2,900, that means all bids between the current price and $2,900 add up to 500 ETH — a seller could unload that amount before pushing the price below $2,900. A steep wall in the chart marks a price where an unusually large order sits.

Depth charts help traders judge how much slippage a large order would cause and where support or resistance from resting orders might appear. They should be read with skepticism, though: large visible walls can be spoofed — placed to influence sentiment and cancelled before execution — and much real liquidity is hidden in iceberg orders or off-exchange. The chart shows current resting orders, not commitments about what will still be there when price arrives.