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River Markets raised $8.5M in a seed round led by Haun Ventures to develop Wall Street-grade tools for prediction markets, enhancing their platform for hedge funds and trading firms.
PRIVATEAug 11, 2026•about 3 hours ago
Amount Raised
$8.5 Million
Round Type
Seed
San FranciscoFinancial ServicesFinanceFintech
Investors
CitadelJp MorganNovigNvidiaGoogleQube Research TechnologiesCoinbase VenturesY CombinatorHaun Ventures
Description
River Markets has closed an $8.5M seed funding round to create a prime brokerage layer for prediction markets. The round was led by Haun Ventures, with participation from Y Combinator, Coinbase Ventures, and other angel investors. The startup aims to offer institutional-grade tools for trading. Having facilitated over $50M in trading volume, River Markets seeks to streamline access to various trading venues.
Company Information
Company
River Markets
Location
San Francisco, California, United States
About
River Markets is a San Francisco-based startup aiming to be the prime brokerage layer for prediction markets. It aggregates platforms like Kalshi and Polymarket into a single institutional trading platform, providing advanced execution tools for hedge funds and prop trading firms. The company has facilitated over $50 million in trading volume and supports top traders on key prediction market venues. Co-founders Oscar Levy and Antonin Parrot bring extensive backgrounds in quantitative finance, appealing to institutional investors.
Predictive Intelligence
Strategic
ML-powered predictions for River Markets's next move
San FranciscoFinancial ServicesFinanceFintech