A market maker is a firm that stands ready to both buy and sell a financial instrument at all times, quoting a price to buy (the bid) and a price to sell (the ask) continuously through the trading day. By always being willing to take the other side of a trade, market makers provide liquidity, which means you can buy or sell quickly without waiting for another individual to want the exact opposite. They earn their money from the spread, the small gap between the bid and the ask, repeated across huge volumes of trades.
Key points:
- A market maker continuously quotes a bid and an ask, standing ready to buy or sell at any time.
- This provides liquidity, so orders fill quickly and markets keep functioning smoothly.
- Market makers earn the spread between their buy and sell prices, not by betting on direction.
- They exist in shares, forex, and derivatives, and many retail brokers act as market makers themselves.
What does a market maker do?
A market maker’s job is to keep a market liquid by always offering a two-sided quote. Suppose a share is quoted at 99p to sell and 100p to buy. The market maker will buy from sellers at 99p and sell to buyers at 100p, pocketing the 1p difference. It holds an inventory of the asset so it can fill orders instantly, and it adjusts its quotes constantly as supply and demand shift. Because it trades in enormous volume, that small per-trade spread adds up, and it makes money whether the wider market goes up or down, as long as trading is active.
Why do markets need market makers?
Without market makers, you would have to wait for another trader who wanted to do the exact opposite of your trade at the same moment, in the same size. For heavily traded shares that might be quick, but for less popular instruments it could take a long time, and prices would jump around as trades arrived. Market makers smooth this out by absorbing the imbalance, holding inventory when there are more sellers than buyers and releasing it when demand returns. The result is tighter spreads, faster fills, and steadier prices, which benefits every participant even though most never deal with a market maker directly.
How do market makers make money?
The core income is the spread. Buy at the bid, sell at the ask, and capture the difference thousands of times a day. A market maker is not trying to guess whether the price will rise or fall; its edge is volume and the spread, not direction. That said, holding inventory carries risk: if a market maker buys a large amount of an asset and the price falls before it can sell, it takes a loss. Market makers manage this by hedging their positions and by widening their quoted spread when markets are volatile and inventory risk is higher. That is why the spread you pay tends to widen during turbulent sessions.
What does a market maker mean for a retail trader?
Two things are worth knowing. First, the spread you pay on a trade is partly the market maker’s fee for providing liquidity, which is one reason low-spread instruments are cheaper to trade. Second, many retail brokers operate a market-maker model themselves, quoting prices to you and taking the other side of your trade rather than passing it to an exchange. That is a normal, regulated arrangement, but it means the broker profits from the spread, so it pays to understand how your broker makes money and to choose a broker whose costs and execution suit how you trade.
Related reading
- How to choose a broker: a practical checklist for UK traders
- Leverage in trading: how it amplifies both gains and losses
Frequently asked questions
Is a market maker the same as a broker?
Not quite, though they overlap. A broker arranges trades on your behalf, while a market maker provides the prices and liquidity to trade against. Some brokers simply route your order to the market, but many retail brokers act as market makers themselves, quoting you a price and taking the other side of the trade. Both models are common and regulated; the difference matters mainly for understanding how your broker earns its money.
Do market makers manipulate prices?
Regulated market makers operate under rules designed to ensure fair pricing, and their quotes must track the wider market closely. Their function is to provide liquidity, and they profit from the spread rather than from pushing prices around. Genuine manipulation is illegal and policed by regulators such as the FCA. The perception that they move prices usually comes from spreads widening in volatile conditions, which is a response to risk rather than manipulation.
How do market makers differ from ordinary traders?
An ordinary trader takes a position hoping the price moves in their favour. A market maker is largely indifferent to direction; it aims to buy at the bid and sell at the ask, earning the spread on high volume while hedging the inventory it has to hold. In short, a trader bets on where the price is going, and a market maker earns a fee for making the trade possible in the first place.
This article is educational and not financial advice. Trading carries risk and most retail accounts lose money. VLT Markets is a publisher, not a broker.
