Kalshi to Require Job Disclosure for Some Traders Amid Insider Trading Concerns

Kalshi just raised the bar for trader accountability. On June 10, 2026, the New York-based prediction market platform confirmed it will immediately require some users to disclose their employers before placing trades in markets it flags as high-risk. The changes take effect immediately and follow recommendations from an independent Surveillance Audit Committee established in February 2026 to review Kalshi’s enforcement systems, monitoring tools, and trading controls. 

Kalshi said it has already blocked more than 100 potential insider trades, opened over 150 investigations, and referred more than 20 cases to law enforcement in Q1 2026. For a platform now valued at $22 billion, the integrity of its markets is no longer optional.

What Kalshi’s New Disclosure Rules Actually Require

The employer disclosure policy is targeted, not blanket. The requirement applies only to markets Kalshi’s new risk-scoring system flags as carrying elevated potential for insider activity or manipulation, including contracts tied to corporate earnings, new product launches, national security, and major geopolitical events such as the US-Iran conflict.

Here is how the new system works:

• Employer disclosure: Required before trading in flagged high-risk markets
• Risk scoring framework: Every proposed market receives a risk score before launch, assessing insider exposure, regulatory compliance, market significance, and national security concerns
• Whistleblower tools: 24/7 in-platform channel for reporting suspicious activity, routed directly to Kalshi’s surveillance team
• Surveillance partners: Solidus Labs and IC360 firms with deep experience monitoring crypto exchanges and traditional markets for wash trading and spoofing

Kalshi said workplaces will not be verified unless an investigation is opened, but some users could be blocked from certain trades based on their employer.

Why Regulators and Congress Are Watching Kalshi Closely

This announcement did not happen in a vacuum. Kalshi has been at the center of a growing regulatory debate throughout 2026. A May 2026 investigation by the House Oversight Committee specifically examined insider trading risks in prediction markets, naming both Kalshi and Polymarket in its scrutiny of user verification and suspicious activity tied to military and political events.

Earlier in 2026, Kalshi took its own enforcement action: The platform fined and suspended three political candidates for trading on their own elections, conduct Kalshi described as “political insider trading,” and referred former Republican Congressman George Santos to US authorities after he placed bets on whether he would attend President Trump’s State of the Union Address in February 2026. The House Oversight investigation followed shortly after.

Kalshi’s Scale Makes Integrity Non-Negotiable

Kalshi’s enforcement push reflects just how large the stakes have become. Kalshi posted $5.42 billion in April 2026 taker volume, surpassing Polymarket’s $1.99 billion for the first time to claim the top spot in the prediction market sector. The industry’s combined monthly volume hit $8.6 billion in April 2026.

The platform’s growth trajectory in 2026:

• April 2026 taker volume: $5.42 billion (Kalshi) vs $1.99 billion (Polymarket)
• YTD 2026 volume (as of April 20): $37.49 billion for Kalshi vs $29.23 billion for Polymarket
• Current valuation: $22 billion after a $1 billion raise led by Coatue Management
• Lifetime combined volume (Kalshi + Polymarket): Crossed $150 billion in April 2026
• Prediction market open interest hit $1.11 billion on May 1, 2026, with Kalshi and Polymarket holding 98% of it combined

Stocks adjacent to the prediction market space, including CME Group (NASDAQ: CME) and Intercontinental Exchange (NYSE: ICE), which invested up to $2 billion in Polymarket, are watching this compliance evolution closely, as it shapes the regulatory template for the entire sector.

Conclusion

Kalshi’s June 10, 2026, announcement marks a structural shift in how prediction markets police themselves. With $5.42 billion in monthly volume, a $22 billion valuation, and Congress watching every move, employer disclosure and whistleblower tools are not just good practice; they are existential necessities. The question is whether these measures arrive early enough to shape regulation on Kalshi’s terms, or whether Washington will impose its own rules first.

Disclaimer

The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.