Key Takeaways
A market maker places orders in an exchange's order book that are not executed immediately, adding liquidity and making it easier for others to trade.
A market taker executes orders immediately at the current available price, filling existing orders in the book and removing liquidity.
In decentralized finance (DeFi), automated market makers (AMMs) replace the traditional order book with liquidity pools, allowing users to act as liquidity providers in a similar role to market makers.
A market maker is a market participant who places buy or sell orders that are not executed immediately. Instead, these orders are added to the exchange's order book and wait to be matched by another trader. By continuously offering to buy and sell at specified prices, market makers provide liquidity, making it easier for everyone else to trade at fair prices.
Understanding the distinction between market makers and takers is foundational to how exchanges operate and how trading fees are structured on most major platforms.
Understanding Liquidity
Before examining makers and takers, it helps to understand liquidity. In financial markets, liquidity refers to how easily an asset can be bought or sold without significantly affecting its price. A highly liquid asset (such as a major cryptocurrency on an active exchange) can typically be traded quickly at a stable price. An illiquid asset, such as a rare collectible or a thinly traded token, may be harder to sell at a reasonable price due to limited buyer and seller activity.
Market liquidity reflects the same idea at the exchange level. In a liquid market, there is sufficient activity that buyers and sellers tend to transact at similar prices, keeping the gap between the highest buy offer (bid price) and the lowest sell offer (ask price) narrow. This gap is known as the bid-ask spread. In liquid markets, this spread is typically tight; in illiquid markets, it widens, often making trades more costly to execute.
Makers and takers play a direct role in shaping market liquidity, which is why most exchanges treat them differently when it comes to fees.
What Is a Market Maker?
A market maker places an order that does not execute immediately. The order is added to the exchange's order book (a running record of all outstanding buy and sell offers) and waits to be matched with a counterparty. Because this adds a new offer rather than filling an existing one, it increases available liquidity on the exchange.
The most common example of a maker order is a limit order: an instruction to buy or sell an asset at a specific price, only executed when the market reaches that level. For example, placing an order to buy 2 BTC at $80,000 when the current price is $85,000 adds a buy offer to the order book without executing immediately. Once the price falls to $80,000, another trader can fill that order.
Large trading firms and high-frequency traders frequently act as market makers, continuously placing orders on both sides of the book. Any trader, however, can act as a maker by placing orders that enter the order book before being filled.
Post-only orders
A limit order does not automatically guarantee maker status. If the limit price matches an existing order at the moment of placement, it may execute immediately, making it a taker order. To ensure an order enters the book without executing immediately, select the "Post Only" option where available. This setting rejects the order if it would match immediately, confirming maker status.
What Is a Market Taker?
A market taker places an order that executes immediately by matching against existing offers in the order book, removing liquidity in the process. The most common taker order type is a market order: an instruction to buy or sell at the best available current price. When placed, a market order is filled against the limit orders already sitting in the book, consuming those offers.
A limit order can also result in taker status if it matches an existing order at the moment of placement and executes immediately, rather than resting in the book. In that case, the trader is acting as a taker despite having used a limit order type.
Maker vs. Taker: A Comparison
Maker-Taker Fees
Exchanges that use a maker-taker pricing model typically charge lower fees to makers than to takers; on some platforms, makers receive a small rebate per trade instead. The rationale is straightforward: makers provide liquidity that makes the exchange more attractive to all participants. A platform with deep order books and tight spreads will draw more traders than one with thin liquidity, so exchanges have a direct incentive to reward the traders who build that liquidity.
Takers pay a higher fee because they benefit from the liquidity that makers have already put in place. The convenience of immediate execution at the current market price carries a cost premium on most platforms.
Fee structures vary significantly between exchanges and may also vary by trading volume tier: traders who reach higher monthly volume thresholds often qualify for reduced maker and taker rates. Review the fee schedule of any exchange you use to understand the specific rates that apply to your activity.
Market Makers in DeFi
In decentralized finance (DeFi), the traditional maker-taker model works differently. Most DeFi trading platforms do not use a central order book. Instead, they rely on automated market makers (AMMs), protocols that use liquidity pools and smart contracts to facilitate token swaps without matching individual buyers and sellers.
In an AMM, users who deposit assets into a liquidity pool act in a role similar to market makers: they provide the liquidity that other traders use when swapping tokens. In return, liquidity providers typically earn a share of the transaction fees generated by the pool. The price of each swap is determined algorithmically based on the ratio of assets in the pool, rather than by order book matching.
Some decentralized exchanges do use an order book model, in which case the maker-taker distinction applies in a way similar to centralized exchanges.
Expanding on Market Makers
What is the key difference between a maker and a taker?
A market maker places orders that rest in the order book without executing immediately, adding liquidity to the exchange. A market taker places orders that execute immediately against existing orders, removing that liquidity. The distinction determines which fee rate applies on exchanges that use a maker-taker pricing model.
Do makers always pay lower fees?
On most exchanges that use a maker-taker fee structure, makers pay lower fees (or receive a small rebate per trade) because they contribute liquidity to the platform. Takers typically pay a higher fee. The exact structure varies between platforms and may also depend on a trader's monthly volume or account tier.
How do I know if my order is a maker or taker order?
If your order is added to the order book and waits to be matched, it is a maker order. If it executes immediately against an existing order, it is a taker order. To ensure your order enters the book as a maker order, use the "Post Only" option where available, as this setting will reject the order if it would execute immediately rather than rest in the book.
Closing Thoughts
The maker-taker distinction is one of the core mechanisms that shapes how exchanges function and how they price their services. Makers provide the liquidity that makes markets practical and competitive, while takers consume that liquidity to execute trades immediately. Understanding which role your orders play (and how that affects the fees you pay) can inform more considered decisions across both centralized and decentralized trading platforms.
Further Reading
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