Order book

The live list of buy and sell orders for a trading pair.

The highest bid and lowest ask define the current market. The distance between them is the spread.

Order-book depth determines how far a large order moves the price against you.

Related terms

Spread

The gap between the buy and sell price, and often the largest hidden cost of buying XRP.

Slippage

The difference between the price you expected and the price you got.

Limit order

An order to buy or sell only at a price you specify.