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Regulatory Authorities Impose Insider Trading Bans on Kalshi and Polymarket.
Kalshi and Polymarket Tighten Insider‑Trading Rules as Congress Proposes New Betting Ban
March 2026
Two of the most visible U.S.‑based prediction‑market platforms, Kalshi and Polymarket, announced on Monday that they are introducing stricter guardrails to curb insider trading and market manipulation. The moves come on the same day that Senators...
