Polymarket rolls out platform-wide market integrity rules, including insider trading ban

Polymarket is introducing a broad set of market integrity rules across its DeFi platform and its CFTC-regulated U.S. exchange. The policy explicitly bans insider trading, spoofing, wash trading, and outcome manipulation, and targets trading based on confidential information or positional influence. The company says enforcement will be supported by layered surveillance and on-chain transparency measures. The move follows renewed scrutiny in recent weeks after unusually well-timed bets tied to reported U.S. strikes against Iran raised concerns that traders with privileged access may have profited from classified information.