TLDR
US lawmakers have introduced a bipartisan bill to stop government officials using inside information on prediction markets, tightening rules on platforms like Kalshi and Polymarket.
- The Senates Public Integrity in Financial Prediction Markets Act would ban officials from using nonpublic government information and require reporting of any contract trades above 250 dollars.
- The bill targets insider trading and could push prediction markets to add stricter surveillance, disclosure and KYC, but it does not directly ban ordinary users from trading.
- Combined with the House PREDICT Act and state lawsuits, this signals a broader regulatory reset for prediction markets that crypto users should watch over the coming year.
Deep Dive
1. What The New Bill Actually Does
A bipartisan group of US senators introduced the Public Integrity in Financial Prediction Markets Act of 2026, aimed specifically at public officials trading on event contracts. It would prohibit the president, vice president, members of Congress, political appointees and federal agency staff from using nonpublic information to trade prediction market contracts, defining insider information broadly as anything a reasonable investor would consider important and not yet public. The bill also requires any prediction market trade above 250 dollars to be reported to the relevant ethics office within 30 days, including price, position, platform, and profit or loss, with fines up to twice any illicit profit for violations.
The focus is on stopping officials from monetizing privileged information, not on shutting prediction markets for everyone.
2. Impact On Kalshi, Polymarket And Users
The bill explicitly contemplates platforms like Kalshi and Polymarket, which have already moved to ban trading based on confidential information and to bar certain insiders, aligning their rules with classic insider trading standards. If passed, platforms will likely face more scrutiny from ethics offices and the CFTC, and may need stronger monitoring, identity checks and audit trails to demonstrate they are not enabling illicit trades by officials. For typical crypto users who are not government insiders, access is more likely to be shaped by platform compliance changes and state-level gambling rules than by this federal insider trading bill itself.
Expect more paperwork, monitoring and possibly tighter geofencing, rather than an outright end to crypto-style prediction markets.
3. The Bigger Regulatory Trend To Watch
This Senate bill comes alongside the House PREDICT Act, which also targets insider trading on prediction markets and extends restrictions to spouses and dependent children of senior officials. At the same time, states like Nevada, Washington and Arizona are suing or blocking prediction market operators over gambling law violations, and Congress is considering separate measures to limit sports and casino-style contracts on regulated platforms. Together, these efforts show that prediction markets are moving from a gray area into a heavily supervised category, with the next year likely to determine how far they can coexist with US gambling and derivatives law.
Crypto users who rely on prediction markets should monitor US legislation and state cases, since venue availability, product design and who may legally trade could all change.
Conclusion
US lawmakers are not trying to end prediction markets outright, but they are clearly intent on stopping public officials from exploiting inside information and on tightening the legal perimeter around these platforms. For crypto users, the practical risk is less about an immediate ban and more about a slow shift toward higher compliance, narrower product menus and sharper distinctions between forecasting tools and pure gambling.
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