Market Makers: Why Exchanges Pay People to Trade

The job in one paragraph

A market maker continuously quotes both a bid and an ask on a pair, earning the spread between them while managing the risk of holding inventory that moves against them. When you market-buy instantly at a fair price, you are trading against a maker's resting order. Without them, most order books would be a scatter of stale limit orders and hopeful lowballs.

On crypto exchanges the role is filled by specialist firms, exchange-affiliated desks, and increasingly by sophisticated individuals running quoting software. The biggest venues host dozens of competing makers on their flagship pairs.

Why exchanges pay for liquidity

Liquidity attracts flow, and flow is the entire revenue model of an exchange. A deep, tight book pulls in traders, whose activity deepens the book further. Every venue wants that flywheel, so they pay makers to start it: fee discounts, formal maker programs with rebates, and negotiated deals for committed quoting on chosen pairs.

You can read this in any fee table. Kraken charges makers 0.16% against 0.26% for takers. MEXC goes further at 0.00%/0.05%, effectively quoting for free. Binance holds both sides at 0.10% for retail but runs separate rebate tiers for high-volume makers.

Maker rebates and what they buy

A rebate flips the fee: instead of paying to trade, the maker is paid when their resting order gets filled. For a firm quoting thousands of times a day, a rebate of even a fraction of a basis point turns marginal quoting into a business. In exchange the venue gets standing depth and a spread it can advertise.

This is not charity in either direction. The maker earns spread plus rebate; the exchange sells better execution to everyone else. Retail traders are the beneficiaries of an arms race they never see.

How maker behavior shapes the book you see

The ladder shape we describe in our depth guide, tight size at the touch thickening smoothly behind, is the fingerprint of professional makers managing risk in layers. When volatility spikes, makers widen quotes or pull size to protect themselves, which is why spreads gape in exactly the moments you most want to trade.

How quickly quotes return after a shock is one of the most honest quality signals a venue has. It is a large part of what our spread-persistence input and venue-tier assessment try to capture.

What this means for venue choice

Venues with strong maker ecosystems dominate our liquidity subscores: Binance 9.9, Bybit 9.6, OKX 9.5, Coinbase 9.2, Kraken 8.9. Thinner venues like Gemini at 7.6 or CEX.IO at 6.8 have makers too, but fewer of them, quoting less size, and stepping back sooner under stress.

If you place limit orders yourself, you are a small market maker, and the same fee tables reward you: on most venues your resting order earns the cheaper maker rate. As ever, our scores reflect the dataset date; the makers reprice every second.

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