Market Depth

Glossary · Market Structure

Market depth measures how much resting order volume sits at each price level around the current price — how big an order the market can absorb before price moves. Deep markets swallow size with little slippage; shallow ones gap on modest orders. Depth charts and heatmaps show it as stacked bids and asks.

"Depth is how much the market can eat before it burps — size up in a shallow book and you are the move."

Depth is usually quoted as volume within a band around mid — '2% depth' being the dollar value of bids and asks within 2% of price. BTC carries hundreds of millions in 2% depth across major venues; a rank-300 alt might carry $200k, meaning one impatient whale is a 5% candle. Depth is also time-of-day dependent: it thins in off-hours and vanishes around big news.

The costly misread is treating displayed depth as real. Market makers pull quotes in milliseconds when volatility hits, so the book that looked thick at your entry is gone at your exit — that's how flash crashes wick 10% on modest volume. Judge a market by its depth under stress, not depth at rest, and remember your stop-loss fills against whatever depth remains when everyone runs for the same door.

Best bid and ask on nine exchanges — top of book, not depth

Related jargon

Questions

What is Market Depth in crypto trading?

Market depth measures how much resting order volume sits at each price level around the current price — how big an order the market can absorb before price moves. Deep markets swallow size with little slippage; shallow ones gap on modest orders. Depth charts and heatmaps show it as stacked bids and asks.

How would a trader say it?

Depth is how much the market can eat before it burps — size up in a shallow book and you are the move.

Part of the Crypto Jargon glossary — every term, decoded the way a trader would say it.

Crypto Jargon

Live numbers load with JavaScript and refresh every few minutes; the text above is the page at build time.