Cantor opens Kalshi block trading for hedge funds via Susquehanna pricing
Cantor Fitzgerald & Co. has begun offering institutional clients block trading access to Kalshi's regulated prediction markets, acting as an introducing broker on the CFTC-registered exchange. Susquehanna International Group serves as the platform's flagship market maker, providing pricing and liquidity for trades based on the event contracts. Cantor will let hedge funds place large bets on these markets through the new channel.
Kalshi now has a direct pipeline to roughly 3,000 institutional clients through a top-tier broker-dealer that previously handled only traditional asset classes. Hedge funds can place large block trades Cantor's institutional block trading for event contracts without the size limits that constrain retail platforms. That changes who controls the order flow: Susquehanna's market-making desk sets the pricing and liquidity terms, not Kalshi's internal systems.
For rivals like Polymarket and OG.com, the partnership raises the competitive floor. Broker-dealer access is becoming table stakes for institutional volume. Any platform without similar infrastructure must now court introducing brokers or watch professional desks trade elsewhere. The move also tests whether event contracts can absorb institutional position sizes without price swings that would scare conservative asset managers away.