Polymarket Introduces Stricter Integrity Measures for DeFi and CFTC Platforms

Polymarket is enhancing its regulations against insider trading and manipulation across its decentralized finance (DeFi) application and CFTC-regulated U.S. exchange by implementing advanced surveillance, National Futures Association (NFA) oversight, and formal whistleblower systems.

Key Takeaways

Polymarket has updated its market integrity rules to address insider trading, fraud, and market manipulation.
New categories of prohibited insider conduct include trading on stolen information and illegal tips.
Participants can report suspicious activity through dedicated channels on both DeFi and U.S. exchange platforms.
These changes come as the CFTC increases its regulatory oversight over prediction-market derivatives.
In February 2026, prediction market activity reached record highs, highlighting the significance of integrity rules for attracting institutional players.

Polymarket integrity rules announcement graphic

Stricter Regulations to Promote Market Integrity

Polymarket has introduced enhanced market integrity rules that cover both its CFTC-regulated U.S. exchange and its DeFi platform. The updated rules place a stronger emphasis on preventing insider trading, fraud, and market manipulation, while also establishing formal reporting mechanisms for suspicious activities. "Markets thrive on clarity," expressed Neal Kumar, Chief Legal Officer of Polymarket.

"Today we're publishing new market integrity rules across our CFTC-regulated US exchange & DeFi platform — making clear what's prohibited, how we enforce rules, & how to report suspicious activity."

According to the latest regulations, there are three main types of prohibited insider activities: trading based on confidential information acquired improperly, acting on illegal tips, and engaging in trading when an individual holds the power to sway the outcome of the event in question. Participants are forbidden from leveraging confidential data obtained through a breach of trust, acting on tips that seem unreliable, and trading while in a position of authority that could influence outcomes.

In addition to insider trading rules, Polymarket has introduced a comprehensive ban on practices like spoofing, wash trading, fictitious transactions, front-running, self-dealing, misuse of information, and any other actions that disrupt fair market operations.

Enhanced Surveillance and Reporting Mechanisms

On its U.S. exchange, enforcement is backed by a multi-tiered surveillance system. This includes partnerships with leading trade surveillance and technology specialists, a control desk for real-time monitoring, and collaboration with the National Futures Association for investigating rule violations. Consequences for violators may include suspension, termination, financial penalties, or referrals to regulatory and law enforcement bodies.

For the DeFi platform, users are encouraged to report any suspected misconduct via Polymarket's Discord channel or by emailing hello@polymarket.com. Meanwhile, participants on the U.S. exchange have the option to submit confidential complaints to reportitnow@QCEX.com.

Regulatory Context

These integrity enhancements coincide with a shifting regulatory landscape in the U.S., where the CFTC has claimed exclusive authority over prediction-market derivatives, working to clarify how event contracts are categorized under the Commodity Exchange Act. In late 2025, Polymarket secured an amended CFTC order, paving the way for intermediated access via futures commission merchants and tying the platform to stringent surveillance, reporting, and self-regulatory duties typical of Designated Contract Markets.

As Polymarket and similar platforms strive for transparency and uphold on-chain credibility, they find themselves competing with DeFi-only venues that prioritize low costs and self-custody. This regulatory clarity is particularly timely, as prediction markets are witnessing unprecedented levels of activity.

In February 2026, total monthly volume on key platforms like Kalshi and Polymarket soared to approximately $18.6 billion, marking a historic high, with more than $8 billion traded during the first half of March alone. Market analysts suggest that as event markets evolve into reliable information sources for media, sports leagues, and financial firms, exchanges that can present credible surveillance along with transparent integrity rules will be positioned to attract the most sensitive transactions. "Our goal has always been to give fans new ways to engage with the sports they love while ensuring those markets can grow responsibly on a global scale," remarked Polymarket founder Shayne Coplan regarding the company’s commitment to integrity.