Clear Street and Marex Group prepare to give hedge funds prime-broker access to Kalshi
Clear Street and Marex Group are preparing to offer hedge funds prime-broker access to Kalshi's prediction markets, according to Bloomberg and Hedgeweek. Clear Street expects to begin clearing Kalshi trades in late 2026. The integrations embed Kalshi event contracts into mainstream institutional trading infrastructure. Demand from hedge funds for event-contract exposure is growing. The moves follow Marex's first cleared institutional Kalshi transaction and Broadridge's CQG platform integration.
Kalshi now has four distinct institutional on-ramps either live or announced — Broadridge CQG, Marex clearing, and now both Clear Street and Marex prime brokerage — where rivals have none. Each new pipe lowers the due-diligence barrier for the next broker and the next fund. Pension and endowment managers who could not touch prediction markets through their existing prime relationships now face only a paperwork change, not a new counterparty.
The late-2026 Clear Street deadline gives Kalshi roughly a year to prove live volume flows through these rails before competitors like Polymarket or ForecastEx can replicate the stack. If institutional desks actually move size, Kalshi diversifies revenue away from the retail political and sports flows that drew felony charges in Utah and parallel state suits. The first prime-broker defaults will set the template: funds that clear through Marex or Clear Street without incident make the product boring in the way compliance officers like.