Event Brief
May 4, 2026 at 3:03 PM ET
Prediction markets test bets on disasters
By The BriefBrief
Prediction markets such as Polymarket and Kalshi are expanding to disaster-related bets.
WHO: Polymarket and Kalshi
WHAT: Disaster prediction markets expand with new betting lines
WHEN: May 4, 2026 at 12:24 PM ET
WHERE: Location not specified
WHY: No specific cause was reported.
Reporting from 2 identified publishers across this event arc.
View all 2 publishers
Publishers represented across this event arc
These publishers contributed reporting to the broader event history. Not every source addresses the specific development described above.
How this brief is built: The BriefBrief correlates multiple sources into one evolving event brief, updated as new facts emerge.
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