Plus500 adds Kalshi sports contracts as Ninth Circuit hears appeal

Plus500's integration makes Kalshi's sports contracts available to a broader retail pool just as the Ninth Circuit weighs whether those contracts survive at all. A ruling against Kalshi would force Plus500 to delist the product and strand its U.S. traders on a venue with no replacement offering. The timing is particularly sharp because Kalshi is already defending its sports vertical on multiple fronts: state regulators in Michigan and Utah are pressing parallel challenges, and a Senate bill would ban sports event contracts entirely. For Plus500, the upside is first-mover access to regulated sports prediction markets; the downside is building a product line atop a legal foundation that may crumble before year-end. The platform's risk is Kalshi's risk multiplied across every distributor now white-labeling its contracts.