River Markets said its affiliate, River Finance LLC, had registered with the U.S. Commodity Futures Trading Commission (CFTC) as a futures commission merchant (FCM) and joined the National Futures Association (NFA), according to The Block, as cited by ChainCatcher on November 9, 2026.
The registration allows River Finance LLC to hold customer accounts and handle customer funds. The reported account-and-funds role belongs to that affiliate; River Markets is building a prediction-market prime brokerage platform for institutional traders.
A single account across trading and clearing venues
River Markets plans to let clients manage funds, positions and risk across multiple exchanges and clearing organizations through one account. The planned platform would also support financing arrangements and permitted over-the-counter transactions. These capabilities were described as plans, not as fully operational services.
Founded in May 2026, River Markets said it had routed more than 250 million contracts for clients including hedge funds and proprietary trading firms. It had previously completed an $8.5 million seed funding round.
The report does not detail customer-fund custody arrangements or the obligations of the participating exchanges and clearing organizations. It also provides no reserve or liability disclosures from which to assess solvency or customer protections.
Original report: ChainCatcher, published November 9, 2026, at 23:10:15 (UTC+8), citing The Block.