Crypto Order Books: Structure, Matching and Trading Uses
Summary
A crypto order book displays outstanding bids and asks for a trading pair. The article explains price, order quantity and cumulative total, along with the best bid and ask, mid-market price and spread. It describes price-time matching in broad terms: an incoming order trades against the best available opposing prices, consuming multiple levels when one level cannot fill the full quantity.
The document suggests using visible depth to gauge liquidity, estimate slippage, price limit orders and identify possible support or resistance areas. Its worked example shows a market buy filling against two sell levels. These are practical interpretations of displayed orders, not reliable predictions: the book covers one exchange, omits historical context, and displayed size can be misleading or withdrawn. The article notes that exchange interfaces vary and that cross-venue prices may differ. Order-book observations are therefore best treated as a partial, real-time view of market activity, not a complete measure of value or intent.
Key ideas
- An order book lists resting buy and sell orders, with price levels and quantities showing displayed market depth.
- The spread is the gap between the best bid and best ask, while the mid-price averages those two prices.
- Incoming orders can consume liquidity across multiple levels when the top level lacks sufficient quantity.
- Visible depth can inform order pricing and slippage expectations, but does not guarantee execution at a displayed price.
- A single exchange’s book can be incomplete, and large displayed orders may create misleading signals.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.