Article

What is the order book and how do you read it?

August 23, 2026

The order book is a live table that lists the buy and sell orders placed in a pair (for example BTC-TRY) by price and amount. Being able to read the order book is important for understanding the balance of supply and demand in the market, seeing price levels while trading, and positioning your limit orders sensibly.

What is shown in the order book?

The order book lists all pending limit orders placed for the selected pair in two sections: buy orders and sell orders. Each row represents the total amount at one price level. In the middle of the list you see the difference between the buy and sell sides — the spread.

Buy section: The orders of users who want to buy the asset at a certain price. The highest buy price is at the top; the price falls as you go down.
Sell section: The orders of users who want to sell their asset at a certain price. The lowest sell price is at the top; the price rises as you go down.

The columns of the order book

The order book consists of three columns. The column headers change dynamically according to the symbol of the selected pair.

Column	Content
Buy	The amount of the crypto asset that users want to buy at that price level
Price	The unit price at which the order was placed (in the quote asset such as TRY or USDT)
Sell	The amount of the crypto asset that users want to sell at that price level

The amount columns are shown in the asset you are trading, and the price column in the quote asset. The colored bar in the background of the rows is not a separate column; it reflects the volume accumulated up to that level visually.

The order book in the Pro buy/sell view shows a total of 12 rows. The order book in the Depth view works with an expandable number of rows; you can change its view to "buy only", "sell only" or "both".

What is the spread?

The spread is the difference between the highest buy price and the lowest sell price in the order book. You can find how the price is formed through this matching mechanism in How are crypto asset prices formed?. A narrow spread shows that the market is liquid and competitive; a wide spread shows that there is an imbalance of supply and demand in that pair, or that liquidity is weak.

Note: If the highest buy price is TRY 2,000,000 and the lowest sell price is TRY 2,000,500 in the BTC-TRY pair, the spread is TRY 500. Because of this difference, a user placing a market order may trade at a price TRY 500 away from what they expected.

What does depth mean?

Depth is the total volume of all open orders placed for a pair. The colored bar in the background of each row in the order book shows the buy or sell volume accumulated up to that price level in proportion. If depth is high, large orders move the price only slightly; if depth is low, an order of the same size can create a noticeable move in the price.

Quick trading from the order book

When you tap a price row in the order book, that price is transferred automatically into your buy/sell form. This way you can apply a level you see in the order book to your limit order with a single tap instead of typing it again.

Note: With the selector in the order book you can combine price decimals. There are four levels and these levels differ in every market — they start from the price step of the pair you are trading and increase tenfold. The lowest level gives the most detailed view; when you raise the level, nearby prices are collected into a single row and you see the order book across a wider price range.

Important information

Pending limit orders appear in the order book; market orders are executed instantly without being added to the order book, and stop orders are added to the order book when they are triggered
Your own orders are shown with a distinct marker in the order book; use the Open orders list to manage your open orders
The order book is not shown in the easy buy/sell view; it is available in the Pro buy/sell and Depth views
The data in the order book is updated in real time — the prices you see on the screen reflect the live orders in the market

Frequently asked questions

How do I see my own orders in the order book?

Your open orders are shown with a distinguishing marker on the related price row in the order book. If you want to see all of your open orders in a single list, open your Open orders list.

What should I do if the spread is wide?

A wide spread indicates that liquidity is low in that pair. If you place a large trade with a market order, your execution price may differ noticeably from what you expected (slippage). In such cases it may be safer to set the price you want by using a limit order.

What happens when I tap a price row?

The price you tap is transferred automatically into the price field of the buy/sell form that is open on the screen. This makes it easier to place a limit order quickly at a level you see in the order book.

What is the price grouping selector for?

It determines the level of detail at which the prices in the order book are shown. When you raise the level, prices close to each other are collected into a single row and you see the order density with a wider view; the buy side is rounded down and the sell side is rounded up. Your selection is saved. When you move to a market with fewer options, your selection is set to the closest valid level.

Why is there no order book in the easy buy/sell view?

Easy buy/sell is designed for trading at the price you see in a single step, so the order book is not shown in this view. If you want to see the order book or use more order types, use the Pro buy/sell or Depth view.