Order matching engine is the cornerstone technology of exchanges in the finance world. They act as an engine room for pairing buy and sell orders. They facilitate the seamless execution of trades by matching orders from market participants through the use of complex algorithms. Without order matching engines the efficient and transparent day-to-day trading of vast volumes of assets would be difficult.
Liquidity providers play an important role in market efficiency, they maintain depth and bid-ask spreads by providing cash or assets when needed. While order matching engines oversee the creation of an efficient market and facilitate daily exchange of vast amounts of liquidity. Aslo, Making the right choice of liquidity provider, such as selecting a reliable cryptocurrency liquidity provider is vital for every market participant.
This article explains what order matching engines are, and the role of liquidity providers, and we’ll examine how different order matching engine features and algorithms impact liquidity provider performance.
Understanding Order Matching Engines
An order matching engine (OME) is a software system that pairs buy and sell orders based on price, time, and quantity from market participants and facilitates seamless trade execution. This software system is the brain behind functioning equity, crypto exchange, commodity, and derivatives markets.
Key Order Matching Engines Components
Diving deeper into the components of order matching engines reveals two (2) key components, these components are important to the overall performance of OMEs.
- Order book
The order book is an essential component of a matching engine, this component is tasked with the organization and display of every open buy and sell order for an asset. The order book is divided into the:
- The bid side:
This side lists every buy order, organized by the purchase price buyers wish to pay, from the highest to the lowest.
- The ask side:
This side lists every sell order, organized by the price sellers are requesting, from lowest to highest.
- Matching algorithm
Matching algorithms are important for establishing a fair trading environment where orders are matched effectively based on predefined rules. They ensure orderly and efficient trade execution. Pro-Rata and FIFO algorithms are examples of these matching algorithms and they facilitate fairness, clarity, and level the playing field for all participants.
How OMEs Impact Liquidity Provider Performance
We have broken down order matching engines’ impact on liquidity providers’ performance into:
- Order matching algorithms
- Latency and throughput
- Order book management
Let’s go through the three (3) below:
- Order Matching Algorithms
The effectiveness of the order matching engine is determined by its matching algorithm. These algorithms are designed to match buy and sell orders from the order book in a way that enables the efficiency of the market. These algorithms influence participants’ trading experience and the market’s liquidity by operating under retailer rules to determine which orders to match and execute.
Some of the most popular utilized matching algorithms are:
- Pro-Rata
This matching algorithm is valuable in markets handling large transaction sizes, this algorithm allocates executions among orders at a similar price based on their size. This method helps to balance the market, letting larger orders be filled approximately without overwhelming the order book.
- Price-Time priority (FIFO)
This largely adopted matching algorithm prioritizes orders based on the best price and the order timing too. Early orders gain priority so orders that have a similar price are executed in the First-In, First-Out (FIFO) method to ensure fairness and encourage participants to place orders on time.
- Latency and Throughput
Latency is the duration it takes for an order to be executed immediately after it has been placed. Low-latency systems are essential for high-frequency trading (HFT) environments where trade executions are in milliseconds or microseconds. These systems support traders to capitalize on very short-term market opportunities. Throughput refers to the number of orders a system can handle within a specific period. Throughput is important for retail-focused platforms and participants in HFT environments. Latency and throughput are concerned with the management of large volumes of trade and influence the flow of liquidity to curb slowing down or crash during high market activity.
- Order book management
The order book management model is the foundation of trading. An order book is simply a list of buy and sell orders for an asset arranged by price level. When a buy order matches a sell order, trades are executed and the price at which the orders match is the asset’s market price. Liquidity providers (LPs) use different algorithms to buy and sell orders, the order book management helps liquidity providers to maintain tight spreads and attract traders.
