River Markets Raises $8.5M for Prediction Markets

Prediction markets are starting to look less like simple betting apps and more like financial-market infrastructure.

What happened

River Markets, a prime broker for prediction markets, raised an $8.5M seed round led by Haun Ventures.

The company is targeting the infrastructure layer around prediction markets, rather than only the consumer-facing trading interface.

Why it matters

This is a fintech infrastructure signal. As prediction markets become more active, the category may need clearing, liquidity, custody, risk management and institutional access — the same kinds of layers that developed around other financial markets.

A prime brokerage model suggests founders and investors believe prediction markets could mature into a more professional trading category.

The bigger picture

The recent wave of interest in prediction markets is tied to politics, crypto, sports, economics and information discovery. The startup opportunity may not only be in consumer apps, but in the financial plumbing that lets larger participants trade, hedge and manage exposure across event markets.