Understanding Order Execution: A Broker’s Technical Perspective

What is Order Execution and How Does It Work?

Order execution is the mechanism through which a trader’s buy or sell order is processed, leading to its acceptance or rejection.

For traders, the process starts when they place an order through their broker’s client terminal. The broker then takes charge, sending the order to the market and informing the trader whether it has been accepted or rejected.

Core Components of Order Execution

Order execution for an online broker is a complex operation, influenced by various factors including infrastructure, system hosting, and more. 

Several key components that are central to the process of order execution:

Client Trading Terminal
The client trading terminal is a software interface provided by the broker that allows traders to place buy or sell orders. It is the primary tool through which traders interact with the market.

Trading Server
The trading server is the engine of the trading platform. It processes orders and enables brokers to execute them using the tools provided by their service providers.

Connectivity Bridge Technology
Connectivity Bridge technology is critical for linking the broker’s trading platform(s) to liquidity provider(s) via a centralized system. This technology facilitates order execution, manages liquidity, and enhances overall efficiency.

Liquidity Providers
Liquidity providers play a crucial role in the process, supplying market prices and executing orders. They are responsible for determining whether an order can be accepted based on available liquidity.

The Order Execution Workflow

Here’s how order execution typically works

Order Placement by the Trader
The trader submits a buy or sell order using the client trading terminal.

Order Transmission to the Trading Server
The order is sent to the trading server, which serves as the central processing unit of the trading platform.

Connecting to Liquidity Providers
The trading platform connects to liquidity providers through the broker’s connectivity technology, enabling the broker to manage liquidity and execute the order.

Liquidity Provider’s Assessment
The liquidity provider receives the order and checks if there is sufficient liquidity to fulfil it. Based on this assessment, the provider decides whether to accept or reject the order.

Execution of the Order
If the order is accepted, the liquidity provider executes it at the current market price. The execution might occur immediately or depend on market conditions and the order type.

In the next blog article, we will discuss slippage and what causes slippage to happen. Stay tuned for more interesting articles from Centroid Solutions!

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