Cantor Opens Kalshi Block Trades to 3,000 Institutional Clients

Cantor Fitzgerald will open brokered access to Kalshi’s prediction markets for roughly 3,000 institutional clients, with Susquehanna International Group set to provide pricing and liquidity for block trades, the Wall Street Journal reported on Aug. 19, 2026, via KuCoin. The move gives large investors a brokered path to execute size in event contracts without relying on the retail interface.

Cantor’s block-brokerage for 3,000 institutions

The reported arrangement places Cantor between eligible institutions and Kalshi’s order book to source, price and route large trades, while Susquehanna stands up pricing and liquidity for those blocks. The client set spans hedge funds and family offices. The structure mirrors block facilitation in listed derivatives, where a broker organizes counterparties for size and a market maker anchors quotes and risk. The Wall Street Journal report, relayed by KuCoin, did not specify contract lists or minimum ticket sizes for this distribution channel.

What makes block trades possible on Kalshi

Kalshi’s rulebook opened a formal path for institutional-size dealing earlier this year. On Jan. 28, 2026, KalshiEX LLC certified amendments to Rule 5.3 with the CFTC to permit pre-execution communications and Block Trades, including request-for-quote mechanics, eligibility criteria and minimum-size thresholds, with an effective date no earlier than Feb. 12, 2026 (CFTC filing).

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