Interactive Brokers launches first major US retail prediction market aggregator with Kalshi, CME, ForecastEx
Interactive Brokers launched a unified prediction-market interface that aggregates event contracts from Kalshi, CME Group, and ForecastEx on a single platform. The Greenwich-based brokerage, which already cleared trades for all three providers, is the first major US retail broker to offer a dedicated multi-venue aggregator, giving its 2.5 million clients access to 15-minute contracts and best-price routing alongside traditional equities, options, forex, and bonds. The offering covers macro releases, Fed policy, and election-linked products. The move contrasts with narrower competitor approaches: Tradeweb partnered only with Kalshi for institutional rates workflows, while StoneX's FOREX.com offers a slimmer event-contract menu.
Polymarket and DraftKings must now match IBKR's single-interface liquidity pool across three regulated venues or lose trader acquisition to a model that offers Kalshi and CME Group immediate exposure to 2.5 million client accounts.
Becomes the third major retail brokerage to push into prediction markets after Robinhood's event-contract entry and Moomoo's licensing grab, as traditional brokers race to turn regulated event contracts into a standard asset-class alongside equities and derivatives.