K
organizationAmerican prediction betting siteWikipedia

Kalshi

Kalshi Inc. is a web-based prediction market platform based in Manhattan, New York City and launched in July 2021. The platform is used primarily for sports betting, which constitutes more than 90% of the activity on the site and 89% of the site's revenue in 2025. Activity on the site is described as "heavily tied to the sports calendar" by analysts.

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Peak article volume on 2026-04-24.