Key facts
- Hudson River Trading has begun trading on Kalshi, the prediction market platform, per the report.
- Kalshi has expanded beyond event contracts into crypto, commodities and perpetual futures, per the report.
Hudson River Trading, one of Wall Street's biggest market makers, has begun trading on Kalshi, according to a report published November 4, 2026. The firm joins a growing roster of institutional firms seeking opportunities in the prediction-market industry, the report said.
The report did not state the date Hudson River Trading began trading on Kalshi, the terms of its participation or the volume it has traded. It also did not name the other institutional firms on the platform.