Polymarket Tightens Rules
Polymarket announced new market integrity rules across its U.S. exchange and DeFi platform — a governance move meant to raise compliance and trust for prediction‑market trading. The change matters for bots and copy‑traders that rely on Polymarket liquidity and public signals. (x.com)
Polymarket published updated governing documents and dedicated Market Integrity pages on March 23, 2026, with Chief Legal Officer Neal Kumar quoted in the release. ( businesswire.com ) The update enumerates three specific insider‑trading categories it now flags: trading on stolen confidential information, trading on illegal tips, and trading by parties who can influence outcomes. ( businesswire.com ) Polymarket’s release says it added resources for users to report suspicious activity via the new Market Integrity pages and updated the DeFi Terms of Use and the Polymarket US Rulebook to reflect enforcement procedures. ( businesswire.com ) The company’s rulebook now lists banned tactics by name — including spoofing, wash trading, fictitious transactions, self‑dealing, front‑running and information misuse — and ties them to explicit enforcement actions. ( businesswire.com ) Polymarket describes a multi‑layered surveillance program that leverages on‑chain transparency from trades executed on Polygon and partnerships with external surveillance and technology specialists for monitoring. ( businesswire.com ) The timing follows intensifying scrutiny reported by Bloomberg and an Associated Press account that two U.S. senators introduced bipartisan legislation targeting sports and similar futures, with rival Kalshi announcing parallel anti‑insider measures the same week. ( bloomberg.com )
