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Polymarket Tightens Market Integrity Rules for DeFi Platform and U.S. Exchange

Polymarket Tightens Market Integrity Rules for DeFi Platform and U.S. Exchange

According to Polymarket’s official announcement, the company expanded its integrity policy across its DeFi platform and CFTC-regulated U.S. exchange, adding explicit bans on insider trading, manipulation, and information misuse.

Fact Check
The statement is accurately reflected in Polymarket's official announcement and subsequent reporting. On March 23, 2026, Polymarket expanded its 'Market Integrity' policy to explicitly ban insider trading (including trading on stolen info or by outcome influencers) and market manipulation (such as wash trading and spoofing) across its DeFi platform and its CFTC-regulated U.S. exchange. This is confirmed by the BusinessWire press release and detailed reports from BlockBeats and PANews.
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Summary

Polymarket said in an official announcement that it updated market integrity rules for both its DeFi platform and its CFTC-regulated U.S. exchange. The revised policy bans three types of insider trading and also prohibits fraud, market manipulation, self-trading, front-running, and misuse of information. Polymarket said it also launched a dedicated Market Integrity page and outlined enforcement measures that can include referrals to the National Futures Association and law enforcement, expanding the compliance framework described in its Terms of Use and U.S. rulebook.

Terms & Concepts
  • DeFi: Short for decentralized finance, a blockchain-based system that offers financial services without traditional intermediaries.
  • CFTC: The U.S. Commodity Futures Trading Commission, the federal regulator overseeing derivatives markets and certain related trading platforms.
  • front-running: A practice where a trader uses advance knowledge of pending orders or market-moving information to trade ahead for unfair advantage.