A-book is a sort of order execution that is associated with a non-dealing desk broker, often known as a straight-through processing broker (STP). This type of broker sends their customer directly to the trading server where counterparts to market trades depart. As a trader, you will not be aware of this because all you will receive as fill back is instant order fill at the exact price level of your choice, and you will proceed without understanding the process.

A book broker has no conflict of interest; you send an order and it is quickly processed; in the meantime, they charge you a commission on every position you open in the market, whether you buy or seek a trade.

An A-book broker is a type of forex brokerage that passes clients’ trades directly to external liquidity providers, such as banks or financial institutions, without internalizing the orders. This approach aligns the broker’s interests with those of the trader, as the broker profits primarily from commissions or spreads rather than client losses.

In this model, trades are executed in the real market, providing traders with access to authentic market prices and deeper liquidity. A-book brokers typically use an Electronic Communication Network (ECN) or Straight-Through Processing (STP) system to process trades efficiently.

This model fosters transparency and fairness but may have slightly higher costs due to commission charges. It is preferred by traders seeking a more genuine market experience.