Kalshi introduces employer verification to curb insider trading in high‑risk prediction markets

U.S. prediction‑market platform Kalshi announced a set of new integrity measures aimed at preventing insider trading and market manipulation. The company will assign a risk‑score to each contract and require users to disclose their employer for markets judged to have heightened insider‑trade risk, such as corporate earnings, product launches, national‑security issues and political events. A 24/7 whistle‑blower portal and upgraded reporting tools will let traders flag suspicious activity directly on market pages.

The steps follow recommendations from Kalshi’s Independent Surveillance Audit Committee and come amid pressure from U.S. regulators and lawmakers, who have launched probes into Kalshi and rival Polymarket. Kalshi reports that in the first quarter of 2026 it opened more than 150 investigations, blocked over 100 potential insider trades and referred more than 20 cases to law‑enforcement agencies, including a probe involving former Rep. George Santos.

Separately, Kalshi secured a multi‑year, non‑exclusive partnership with sports‑data firm Sportradar, giving the exchange access to official feeds from Major League Baseball, the NHL, MLS and UFC, with the option for Sportradar to sublicense data to Kalshi’s clients. The deal highlights Kalshi’s broader push to integrate reliable data sources as it expands its prediction‑market offerings.