Ever wondered how there’s always someone ready to buy when you want to sell, or sell when you want to buy — instantly? The unsung heroes behind that are “market makers.” You’ll never be one as a beginner, but understanding them explains a lot about how trading actually works. Here’s the plain-language guide.
What a market maker is
A market maker is a participant — often a firm or an automated system — that continuously offers both to buy and to sell an asset, providing the liquidity that lets trades happen smoothly. They essentially stand in the market quoting a price they’ll buy at and a (slightly higher) price they’ll sell at, ready to trade with whoever comes along. By always being willing to take the other side, they keep markets liquid and orderly.
How they make money: the spread
Their profit comes mainly from the “spread” — the small gap between the buy price and the sell price they quote. They buy a little lower and sell a little higher, earning that difference many times over across huge volumes of trades. They’re not necessarily betting on the price going up or down; they aim to profit from the constant flow of trading activity itself. In return for that profit, they perform a useful service: making sure there’s always a counterparty.
Why they matter to you
Even though you’ll never act as one, market makers shape your experience as a regular user. Their presence is a big reason a popular coin has tight spreads and you can buy or sell instantly at a fair price — that’s healthy liquidity. When market makers are active, trading is smooth; when they’re absent (as with tiny, obscure coins), spreads get wide, prices jump around, and it’s harder to trade without a bad price. So “is this market well-served by market makers?” is essentially the same question as “is this coin liquid?”
The beginner’s takeaway (and a caution)
The useful lesson is about liquidity, not about becoming a trader. Big, established coins on major exchanges generally have strong market-making and tight spreads, so you get fair, instant trades. Tiny coins often don’t, which is part of why they’re riskier to get in and out of. One caution worth knowing: in lightly-regulated or thin crypto markets, “market making” can shade into manipulation (artificially inflating activity), so extreme or suspicious trading volume on an obscure coin is a reason for skepticism, not excitement. You don’t need to act on any of this beyond favouring liquid markets and staying wary of thin ones. This is education, not financial advice.
Key takeaways
A market maker continuously offers to both buy and sell an asset, providing liquidity so trades happen smoothly, and profits mainly from the spread (the small gap between its buy and sell prices). Their activity is why popular coins have tight spreads and instant, fair trades, while coins they ignore are illiquid and jumpy. You’ll never be one, but the lesson is to favour liquid markets and be wary of thin ones — where activity can even be manipulated. This is education, not financial advice.
New here? This explains the forces behind liquidity and the order book spread. Thin markets make slippage worse.
Crypto 101 Daily 
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