What is Wintermute doing with Kalshi and Polymarket?

Wintermute has confirmed that it is providing liquidity on both Kalshi and Polymarket. By quoting buy and sell prices on both platforms, the firm helps traders enter and exit positions more easily while improving overall market efficiency.

Why is Wintermute's involvement important for prediction markets?

Wintermute is one of the largest crypto market makers, processing trillions of dollars in annual trading volume. Its participation can increase liquidity, reduce trading friction and improve price discovery across prediction markets.

How does Wintermute connect Kalshi and Polymarket?

According to a source familiar with the matter, Wintermute is active on both platforms, allowing capital and pricing information to move between them. This creates a mechanical link that can help align market prices and improve liquidity across both venues.

What are Kalshi and Polymarket?

Kalshi and Polymarket are prediction markets where users trade contracts based on the outcome of future events. These events can range from elections and economic data releases to sports and cryptocurrency-related developments.

What does a liquidity provider actually do?

A liquidity provider continuously places buy and sell orders in a market. Rather than betting on outcomes, firms like Wintermute earn revenue from bid-ask spreads while helping ensure markets remain active and orderly.

Why does liquidity matter in prediction markets?

Higher liquidity generally leads to tighter spreads, better pricing and easier execution of larger trades. This can make prediction markets more reliable as indicators of expected future outcomes.

How could Wintermute affect prediction market pricing?

By actively making markets on both platforms, Wintermute may help reduce pricing discrepancies between Kalshi and Polymarket. This can improve the accuracy and consistency of probability estimates displayed on both exchanges.

What does this mean for traders using Kalshi or Polymarket?

Traders may benefit from deeper order books, lower trading costs and reduced price volatility. Improved liquidity can make it easier to enter and exit positions without significantly affecting market prices.

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Wintermute links Kalshi and Polymarket liquidity

Written by Brie CarterPublished May 30, 2026, 2:23 AM

Crypto market maker Wintermute has confirmed that it is providing liquidity to leading prediction market platforms, including Kalshi and Polymarket, creating a direct connection between two of the sector’s largest trading venues.

The London-based firm said it is actively quoting two-sided markets across event contracts, helping traders buy and sell positions more efficiently while reducing the likelihood of sharp price swings.

According to a person familiar with the matter, Wintermute’s activity allows capital and pricing flows to move dynamically between Polymarket and Kalshi, strengthening liquidity across both ecosystems.

“For these markets to become a reliable real-time source of probability estimates, they need sustained two-sided liquidity,”

Said Wintermute Head of OTC Trading, Jake Ostrovskis.

Unlike traders who speculate on event outcomes, Wintermute operates as a liquidity provider, earning revenue from bid-ask spreads while helping ensure markets remain active and orderly.

The development highlights growing institutional participation in prediction markets, with Wintermute arguing that stronger liquidity can improve pricing accuracy and transform prediction platforms into broader venues for trading event risk.

The announcement also comes as Kalshi expands its product offering after receiving approval from the Commodity Futures Trading Commission to launch Bitcoin perpetual futures, while Wintermute continues pursuing a broader expansion strategy in the United States.

At the time of reporting, Bitcoin price was $73,587.43.