London-based algorithmic trading firm Wintermute started offering two-sided liquidity on prediction markets Friday, bringing a heavyweight market maker into a sector that has already cleared more than $60 billion in event-contract volume this year.
Why the move matters
Wintermute handles over $3.5 trillion in annual trading volume, making it one of the largest players to enter the prediction market space. The firm is the latest institutional market maker to provide two-sided quotes on event contracts — a sign that what was once a niche corner of finance is drawing serious attention from big-money traders.
Prediction markets let users bet on the outcome of future events, from elections to interest-rate decisions. Two-sided liquidity means Wintermute will both buy and sell contracts, narrowing spreads and making it easier for other traders to enter and exit positions without moving prices sharply.
What Wintermute brings
As a market maker with deep experience in crypto and traditional assets, Wintermute can absorb large orders that smaller retail-focused liquidity providers cannot. That could attract bigger institutional players who have stayed on the sidelines because the markets were too thin.
The firm's algorithmic trading infrastructure allows it to adjust prices in real time based on order flow and external data. For prediction markets, that means tighter pricing on popular contracts like U.S. election outcomes or Federal Reserve rate decisions — and potentially faster growth in volume.
How prediction markets have grown
Event-contract volume has exploded in 2026, topping $60 billion. That's up from a few billion just a couple of years ago. The surge has been driven by a mix of retail speculators, hedge funds, and now institutional market makers like Wintermute.
Regulatory clarity in several jurisdictions has also helped. While some countries still treat event contracts as gambling, others — including the U.S. under specific CFTC frameworks — have allowed regulated exchanges to list them.
Wintermute's entry adds credibility and depth to a market that is still young. Whether the firm can turn a profit on prediction market spreads is an open question, but the company is betting the sector's growth is just getting started.
