Polymarket is stepping up its efforts to keep prediction markets fair and transparent. The platform has introduced stricter integrity rules across both its DeFi application and its CFTC-regulated U.S. exchange, targeting insider trading, manipulation, and other abusive practices.
The update signals a clear push toward stronger compliance as crypto-linked event trading continues to attract institutional attention. According to Polymarket’s Chief Legal Officer, Neal Kumar, the changes are designed to remove any ambiguity for users. “Markets thrive on clarity,” he said, adding that the new framework makes expectations “abundantly clear” for all participants.
Clearer Rules on Insider Activity
At the core of the overhaul are tighter definitions of insider trading. The company now explicitly bans three major types of behavior:
- Trading using stolen confidential information
- Acting on illegal tips
- Trading by individuals who can influence the outcome of an event
In simple terms, anyone with privileged access or influence over an outcome is prohibited from placing bets tied to that event. The rules also stress that even indirect misuse of sensitive information—such as acting on suspicious tips—can lead to penalties.
Crackdown on Market Manipulation
Beyond insider trading, Polymarket has expanded its list of banned practices. These include spoofing, wash trading, front-running, and fake transactions. The company is also targeting self-dealing and any attempts to manipulate market outcomes or disrupt fair trading.
Stronger Surveillance and Enforcement
On its U.S. exchange, enforcement will rely on a multi-layered surveillance system. This includes partnerships with advanced monitoring firms, real-time oversight through a dedicated control desk, and regulatory backing via the National Futures Association.
Users who break the rules could face account suspension, permanent bans, financial penalties, or even referrals to regulators and law enforcement agencies.
Polymarket is also making it easier to report suspicious activity. DeFi users can raise concerns through Discord or email, while U.S. exchange participants have access to a confidential reporting channel.
Regulation Meets Rapid Growth
The move comes as the Commodity Futures Trading Commission increases its oversight of prediction markets, asserting authority over event-based derivatives. Polymarket has already aligned itself with these rules, following an amended regulatory order in late 2025 that brought stricter compliance requirements.
At the same time, the sector is booming. Platforms like Polymarket and Kalshi have seen record trading volumes, with billions of dollars flowing through prediction markets in early 2026 alone.
As these platforms evolve into trusted data sources for industries like media, finance, and sports, strong integrity measures are becoming a competitive advantage. Polymarket founder Shayne Coplan previously emphasized that the company’s long-term goal is to help markets grow responsibly while giving users new ways to engage with real-world events.
With tighter rules and stronger oversight now in place, Polymarket is positioning itself at the center of a more regulated—and rapidly expanding—prediction market ecosystem.
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