A measure of how much liquidity exists at different price levels in the order book.
Market Depth
Market Depth refers to the distribution of buy and sell orders across various price levels in the order book. It reflects how much liquidity exists beyond the top bid and ask, revealing how stable or fragile a market is when faced with large trades.
Deep markets can absorb significant buy or sell pressure with minimal price changes, while shallow markets react sharply even to modest orders.
How Market Depth Works
Multiple layers of bids and asks exist at increasing distances from the current price
Large clusters of orders create natural support or resistance
Market makers, arbitrageurs, and active traders contribute to depth
Liquidity is dynamic and changes constantly based on sentiment and volume
Market depth provides a detailed look at the “true liquidity” behind an asset—not just what’s visible at the top of the book.
Why Market Depth Matters
Shows how sensitive prices are to large orders
Helps traders avoid excessive slippage
Assists institutions in planning order execution
Indicates overall market health and liquidity stability
Helps detect spoofing or manipulative order placement
Summary
Market depth measures how much liquidity exists at various price points, helping traders and institutions assess how large trades may affect price movements.