What Is a Market Maker? Liquidity Providers in Prediction Markets
A market maker is a trader or firm that provides liquidity by continuously placing buy and sell orders, profiting from the bid-ask spread.
Definition
A market maker is a participant who provides liquidity to a market by simultaneously posting buy orders (bids) and sell orders (asks). They profit from the bid-ask spread — the difference between their buy and sell prices — while taking on the risk of holding inventory.
Role in Prediction Markets
Market makers are essential for healthy prediction markets. Without them:
- Spreads would be wide, making trading expensive
- Orders would sit unfilled for long periods
- Prices would be less accurate as a probability signal
Professional market makers use algorithms to continuously adjust their quotes based on incoming orders, news, and position risk.
How Market Makers Profit
A market maker might post:
- Buy YES at $0.64 (bid)
- Sell YES at $0.66 (ask)
If both orders fill, they earn $0.02 per share regardless of the outcome. Over thousands of trades, this adds up — as long as they manage their inventory risk properly.
Market Making on Purrdict
Purrdict runs on Hyperliquid’s high-performance CLOB, which is already home to professional market makers handling billions in monthly perp volume. These same firms can provide liquidity to prediction markets using familiar APIs and infrastructure.