What is a market maker?
When you hit "buy", somebody sells to you within milliseconds. That somebody is very rarely another beginner and very often a machine whose whole business is to be there. Understanding what that machine wants — and what it is afraid of — changes how you place orders and removes one of the more persistent myths in retail trading.
What does a market maker actually do?
It keeps two orders in the book at all times: a bid slightly below the current price and an ask slightly above it. When a taker sells into the bid, the maker buys; when a taker buys from the ask, the maker sells. If the two happen close together, the maker has bought at the bid and sold at the ask and pocketed the spread without any view on where price goes next. Its job is inventory management: keep the position near zero, adjust quotes as price moves, and step back when the market gets dangerous.
Exchanges want makers because a tight, deep book attracts traders. Most venues pay for it with lower fees for orders that add liquidity and higher fees for orders that remove it — the maker/taker fee schedule.
How does a market maker make money?
Tiny margins multiplied by enormous turnover. Suppose a maker quotes BTC/USDT with a $2 spread around $60,000 and completes 1,000 round trips (buy at bid, sell at ask) in a day on 0.1 BTC each. Gross spread capture is 1,000 × 0.1 × $2 = $200. That is on roughly $12 million of notional traded — about 0.0017% per side. It only works because the machine does it all day, on many pairs, with fees near zero or rebated.
| Scenario | Round trips | Size per trip | Spread captured |
|---|---|---|---|
| Quiet day | 1,000 | 0.1 BTC | $200 |
| Busy day, same spread | 5,000 | 0.1 BTC | $1,000 |
| Busy day, spread widens to $6 | 5,000 | 0.1 BTC | $3,000 |
Spread captured = round trips × size × spread. Volatile days pay makers more per trade — when they choose to keep quoting.
The risk is being run over: buying from a wave of sellers just before price falls further, so the inventory it holds is worth less than it paid. Makers manage this by widening spreads, shrinking size or pulling quotes entirely when order flow turns one-sided — which is why liquidity vanishes in a crash.
Are market makers trading against retail?
They are on the other side of your trade, which is not the same as being against you. A maker does not know or care whether you are right about direction; it wants you to trade often and to cross the spread when you do. Where retail traders lose to makers is not in some hidden battle but in the plain arithmetic of paying the spread and taker fees on every impatient market order, hundreds of times a year.
The idea that "market makers hunt my stop" is usually a confusion with something real but different: large directional traders, not quote-posting makers, push price into clusters of stops to find the liquidity they need. The maker is the counterparty that makes that fill possible; it is not the one aiming at you.
How do I make the maker pay me instead?
Become one, in a small way. A limit order resting in the book adds liquidity; when it fills, you were paid the spread instead of paying it, and most exchanges charge you the lower maker fee. On a $10,000 order with a 0.02% maker fee against a 0.05% taker fee, the difference is $3 per side — $6 a round trip, $600 across a hundred trades, before counting the spread you no longer cross. The cost is that a limit order may never fill; in a fast move you watch price leave without you. That is the honest trade: certainty of fill for a fee, or a better price for the risk of missing it.
FAQ
Do market makers manipulate the price? Posting quotes is not manipulation; it is the service that lets you trade instantly. Pushing price to trigger stops is done by directional traders looking for liquidity, and it is the taker side of that flow, not the maker, that drives the move.
Who are the market makers in crypto? Specialist trading firms and, on some venues, the exchange's own liquidity programmes. On decentralised exchanges an automated pool of tokens plays the role instead.
Can a small trader be a market maker? Any resting limit order technically makes a market. Doing it profitably at scale needs speed, capital and fee rebates; doing it occasionally to save fees and spread is available to everyone.
Why does the spread widen when news comes out? Because makers cannot price the asset confidently and widen or pull quotes to avoid being filled at stale prices. Wide spreads at news time are the cost of certainty, charged to whoever insists on trading.
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How the market is actually built: venues, order books, who quotes and who takes.
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The whole slide course — ten free PDF parts, 328 pages.
Makers are why a market has a price at all times; takers are why that price moves. Limit orders put you on the maker side, market orders on the taker side, and Lesson 8 shows the book where the two meet.