TL;DR: River Markets is a Y Combinator Spring 2026 startup Prime brokerage for prediction markets, currently active with a team of 2.
Prime brokerage for prediction markets
Last verified:
River Markets is the prime brokerage for prediction markets. We aggregate every major event-contract venue into one account, giving professional traders best execution, portfolio and order management systems, and a unified API.
Yes. River Markets was funded by Y Combinator in the Spring 2026 batch. Prime brokerage for prediction markets
River Markets is the prime brokerage for prediction markets. We aggregate every major event-contract venue into one account, giving professional traders best execution, portfolio and order management systems, and a unified API.
River Markets was part of Y Combinator's Spring 2026 batch.
River Markets has a team of 2 people according to Y Combinator's directory.
River Markets is currently listed as Active with a team of 2 in Y Combinator's directory.
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