Product
Market Maker
Reviewed by iGaming Times editorial teamLast reviewed 24 September 2026
What is Market Maker?
A firm that quotes both buying and selling prices in a market, profiting from the spread between them and providing the liquidity that lets other participants trade when they want to.
Key takeaways
- A market maker quotes both buying and selling prices, earning the spread and supplying the liquidity other traders need.
- Prediction markets depend on a small number of professional firms willing to price contracts that have no conventional pricing model.
- Where liquidity rests on one or two firms, their withdrawal would widen spreads sharply and expose how thin the market really is.
Why it matters
Without market makers a young venue has thin books and wide spreads, and customers cannot execute at a sensible price. Prediction markets in particular depend on a small number of professional trading firms willing to take the other side of contracts on outcomes with no conventional pricing model, which is a genuinely difficult risk to warehouse.
The role carries real exposure. In a large block a market maker may stake several times what the taker puts up, since the payout is fixed and the premium is not. Firms therefore price the position rather than the sentiment, and their willingness to quote is a better indicator of a market's maturity than headline volume.
Concentration is the risk. Where liquidity in a category depends on one or two firms, the withdrawal of either would widen spreads sharply, and the venue's apparent depth would prove to have been a relationship rather than a structure.
The bottom line
Market makers are what turn a venue into a market. In prediction markets they are few enough that naming them is still possible, which is itself a measure of how young the sector is.
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Frequently asked questions
What does a market maker do?
A market maker quotes both a buying and a selling price in a market and profits from the spread between them. By standing ready to take the other side of trades, it provides the liquidity that lets other participants execute when they want to and at a sensible price. Without market makers, a young venue has thin books and wide spreads.
Why do prediction markets need market makers?
Prediction markets list contracts on outcomes that often have no conventional pricing model, so few participants are willing to warehouse the risk. A small number of professional trading firms fill that role. Their willingness to quote is a better sign of a market's maturity than headline volume, because it shows someone is prepared to price the position rather than the sentiment.
What risks do market makers face in prediction markets?
The exposure can be large. In a big block trade a market maker may stake several times what the taker puts up, because the payout is fixed and the premium is not. For the venue, the risk is concentration: if liquidity in a category depends on one or two firms, the withdrawal of either would widen spreads sharply and reveal how shallow the market was.