You placed the trade. The order filled in under a second. But who actually took the other side of it?

Most traders never stop to ask that question. They click buy, the position opens, and they move on. But the answer matters more than it might seem, because the person or institution on the other side of your trade has incentives of their own, and those incentives shape the price you paid, the spread you absorbed, and what happens to your order when markets get choppy.

This article explains who market makers and liquidity providers are, what they do, how they’re different, and why knowing the difference makes you a more informed trader.

Before we get into either term, there is one concept worth nailing down first: liquidity. Liquidity, in simple terms, is how easily you can buy or sell something without dramatically moving the price. A market with high liquidity has plenty of buyers and sellers at any given moment, so your order gets filled quickly at a fair price. A market with low liquidity has fewer participants, which means your order can move the price just by existing, and your fill might be worse than expected. Market makers and liquidity providers are the main reason most financial markets stay liquid enough to trade. The terms are sometimes used interchangeably, but they refer to different roles in the same system. That distinction is worth understanding clearly.

What Is a Market Maker and What Do They Actually Do?

A market maker is a firm or individual that continuously quotes both a price to buy and a price to sell for a given financial instrument, standing ready to trade at those prices regardless of what the broader market is doing.

Think of them as the shopkeeper who always has stock on the shelf. Even if no one else wants to buy or sell at this exact moment, the market maker will. They quote two prices simultaneously: the bid (the price they will buy from you) and the ask (the price they will sell to you). The gap between those two prices is called the bid-ask spread, and it is the market maker’s compensation for providing this service.

Here is a real-world example. When you trade the EUR/USD currency pair in the foreign exchange market, a major bank acting as a market maker might quote a bid of 1.2500 and an ask of 1.2502. If you want to buy, you pay 1.2502. If you want to sell, you receive 1.2500. That two-pip spread on millions of transactions every day is how market makers earn their income. Firms like Goldman Sachs operate as market makers across equity, bond, and foreign exchange markets, maintaining these continuous two-sided quotes to keep the market functioning.

This is what it means for a market maker to provide liquidity: they are always there. They don’t wait for a buyer to appear before they sell to you, or a seller before they buy from you. They absorb that risk themselves, which is why markets can operate around the clock without grinding to a halt every time buyers and sellers are briefly out of sync.

What Is a Liquidity Provider in Financial Markets?

A liquidity provider is a financial institution, bank, or specialised firm that supplies the capital and pricing that market makers draw on to do their job. If market makers are the shopkeeper, liquidity providers are the wholesale supplier.

Liquidity providers are entities that operate further up the chain. They include the world’s largest banks, such as JPMorgan Chase and Deutsche Bank, as well as major hedge funds and other institutional investors. These are sometimes called tier 1 liquidity providers, and they supply enormous pools of capital into the financial system that filter down through the network to the retail trading platforms you use.

In the forex market, for instance, retail brokers do not set prices themselves. They aggregate prices from a network of liquidity providers and pass the best available prices on to their clients. The more liquidity providers a broker has access to, the tighter the spreads it can offer. This is why execution quality varies between brokers even when you are trading the same instrument at the same time.

Liquidity providers also operate in crypto markets, where the infrastructure is newer and sometimes thinner. In decentralised finance, liquidity pools serve a similar function: participants deposit assets into a shared pool, and those assets are used to fill trades automatically. This is a newer model of market making that removes some of the institutional middlemen, though it introduces its own mechanics and risks.

Liquidity Provider vs Market Maker: What Is the Difference?

The most straightforward way to draw the distinction: a market maker faces the retail trader directly, quoting prices and filling orders. A liquidity provider sits behind the market maker, supplying the depth and capital that makes market making possible.

A market maker’s job is active and moment-to-moment. They must continuously quote buy and sell prices, adjust those prices as conditions change, manage their own inventory of the asset, and profit from the bid-ask spread across a high volume of trades. Market makers ensure that when you place an order, something fills it. They also accept the inventory risk: if they sell you an asset and the price rises immediately, they have lost money on that trade.

A liquidity provider’s role is broader and more structural. They are the institutions that provide liquidity to the market as a whole, often through agreements with brokers and exchanges. They do not typically interact with individual retail orders directly. Instead, they maintain the deep pool of capital that the wider market ecosystem depends on. In practice, a single institution can act as both: Goldman Sachs, for example, operates as a market maker in specific securities while also functioning as a major source of liquidity for other participants.

Here is where the difference becomes tangible. Rachel is a trader with six months of experience, and she has been practising on forex before trying her hand at smaller UK-listed stocks. One morning she decides to trade shares in a small engineering company with a market cap of around £80 million. The bid-ask spread is listed as 3.2%, compared to the 0.02% she is used to on EUR/USD. She places a buy order for £2,000 worth of shares. Her order fills, but the fill price is notably worse than the mid-price she saw on screen. Later, when she tries to exit, the spread has widened further because trading volume has dropped off through the afternoon. What she paid in spread on entry and exit cost her more than her target profit on the trade itself.

What happened is that the smaller stock had far fewer market makers willing to quote tight prices, and the liquidity providers behind them had less appetite for that asset. The market was illiquid, and Rachel paid for it. The same dynamics that gave her near-instant, near-costless fills on EUR/USD simply did not exist for that stock.

This is the practical difference between a highly liquid market and an illiquid one, and it begins with whether sufficient market makers and liquidity providers are active in that instrument.

How Market Makers and Liquidity Providers Make Money

Market makers profit from the bid-ask spread. It sounds small on any individual trade, but the maths compounds quickly at scale. On EUR/USD, a spread of two pips on a one-million-unit position is £200. Across hundreds of thousands of trades a day, this becomes a viable and significant business.

High-frequency trading firms like Virtu Financial operate as modern electronic market makers, using algorithms to quote prices across thousands of instruments simultaneously, capturing tiny spreads at enormous volume and speed. These firms now handle a significant share of market making that was once done by human traders on exchange floors.

Liquidity providers earn through a different model. They profit from the difference between the rates they offer to the market and the rates they can hedge or transact at themselves, from fees charged to brokers and platforms for access to their liquidity, and in some cases from holding positions and earning yield. Their income is less about the per-trade spread and more about the structural position they occupy in the financial market.

It is worth being clear about something: market makers and liquidity providers are not adversaries of the retail trader. Their incentive is to maintain enough market participation to keep business flowing. They need buyers and sellers trading actively. A market that retail traders abandon is not a market that market makers and liquidity providers profit from.

Why Market Structure Matters for Your Trading

Knowing that market makers and liquidity providers exist is one thing. Understanding what this means at the level of your own trades is where it becomes genuinely useful.

In markets with deep liquidity, you benefit from tight spreads, fast fills, and minimal slippage between the price you see and the price you get. The forex market is the largest market in the world precisely because it has the most extensive network of liquidity providers and market makers maintaining supply and demand at all hours. This is why major currency pairs like EUR/USD or GBP/USD trade with spreads of just a few pips, while an obscure emerging-market currency pair might have a spread of many times that.

In markets with shallow liquidity, the opposite is true. Smaller stocks, less popular crypto tokens, and niche currency pairs can have wide spreads and unpredictable fills. Trading these markets during off-peak hours compounds the problem, because market makers actively managing those instruments may have reduced their activity or widened their quotes to reflect higher risk.

This shapes practical decisions: when you trade, what you trade, and at what time of day. A trade that looks profitable on paper can become a losing trade when the cost of entering and exiting a low-liquidity market is added up.

If you have found yourself thinking that your understanding of market mechanics is shallower than you’d like, and that most courses you have come across treat execution as an afterthought, that is a real gap worth filling. A structured programme that covers professional market analysis and how institutions actually interact with price is what moves a trader from reactive to informed.

Olix Academy’s Intermediate Trading Course is built around exactly that: trading strategies grounded in how markets actually function, with real risk management and professional analysis. Whether that kind of structured learning environment suits the way you absorb new concepts is worth thinking about before committing. For those it does suit, 92% of students become profitable within their first six months of completing the programme.

The Risk You Need to Understand

You are trading EUR/USD during a major central bank announcement. Your stop-loss is set two pips below your entry. The news hits. In the next three seconds, the spread jumps from two pips to fourteen. Your stop triggers, but not at the price you set. It fills four pips lower, because the market maker’s bid dropped sharply as they pulled back from risk. You lost more than you planned to, and you did not make a mistake in the conventional sense.

This is what happens during periods of market stress: liquidity providers and market makers reduce their activity or widen their quotes dramatically to protect themselves. The result is that the market becomes harder and more expensive to trade precisely when many retail traders want to be most active. News events, economic releases, market open and close, and crisis moments all carry this risk.

Market makers ensure stability under normal conditions, but they are private businesses managing their own exposure. They are not obligated to maintain tight spreads during extreme volatility, and they don’t. The lesson is not that market makers are unreliable. The lesson is that liquidity is not fixed. It shifts constantly, and it shifts most sharply exactly when you are most likely to be trading emotionally or reacting to news.

Understanding this means you can plan around it rather than being surprised by it.

Frequently Asked Questions

Is a liquidity provider the same as a broker?

No, though the two are often confused. A broker is an intermediary that connects retail traders to the market, passing orders to liquidity providers and market makers on your behalf. A liquidity provider is a financial institution that supplies the capital and pricing the broker draws on. Some brokers act as their own market makers (known as broker-dealers), internalising your order rather than passing it to an external provider, which is worth understanding when choosing a broker.

How do liquidity providers and market makers make money?

Market makers earn from the bid-ask spread: they buy at the lower bid price and sell at the higher ask price, capturing the difference across a high volume of trades. Liquidity providers earn from the rate differential between what they offer to the market and what they can transact at themselves, plus fees charged to brokers for access to their liquidity pools. Neither earns from the direction of a retail trader’s position going wrong.

What are liquidity providers in crypto?

In crypto, liquidity providers take two main forms. Traditional institutional liquidity providers, such as specialist crypto market-making firms, supply pricing to centralised exchanges much as banks do in forex. In decentralised finance, liquidity providers are individuals or funds that deposit assets into liquidity pools on protocols like Uniswap, enabling automated trading without a central market maker. In return, they earn a share of the trading fees generated by that pool.

What are some of the challenges faced by liquidity providers?

Liquidity providers face inventory risk (holding assets that move against them before they can hedge), execution risk during fast markets, and the constant challenge of pricing fairly across thousands of instruments simultaneously. In crypto markets, they also face smart contract risk on decentralised platforms. During periods of market stress, the cost of providing liquidity rises sharply, which is why providers reduce their activity or widen spreads precisely when conditions are most volatile.

Is a liquidity provider a market maker?

Sometimes, but not always. A market maker is always providing liquidity in the sense that they quote prices and stand ready to trade. But a liquidity provider does not necessarily interact with orders directly. Large institutional liquidity providers supply capital and pricing to the system; some also operate market-making desks for specific instruments. Think of it as market makers being a subset of the broader liquidity provider category, specialised for the direct execution layer of the market.

Why are liquidity providers important in the forex market?

The forex market is the largest financial market in the world, trading over six trillion US dollars daily, and it has no central exchange. It functions entirely through a decentralised network of liquidity providers, primarily large banks, who quote prices to one another and to brokers. Without this network, retail traders would have no reliable way to access currency markets with tight spreads and consistent execution. The quality and depth of a broker’s liquidity provider network directly determines the trading conditions you experience.

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Every price you see on a chart was set, at some point, by a market maker quoting a spread and a liquidity provider standing behind that quote. Most traders never see that machinery. The ones who do tend to make fewer decisions that assume the market is something other than what it is.