White House Scrutiny Forces Kalshi Employer Disclosure Rule

Kalshi, the CFTC-regulated U.S. prediction market leader, plans to require users to disclose their employer before trading certain sensitive contracts. The change directly addresses rising concerns over insider trading tied to government and corporate information. Rising Insider Risks Prompt Action Prediction markets have seen explosive growth, with combined Kalshi and Polymarket volumes reaching record levels in recent months. Yet this surge has amplified risks of trading on material non-public information (MNPI). On March 24, 2026, the White House sent an internal email warning staff against using non-public government information on platforms including Kalshi. In May 2026, House Oversight Committee Chair James Comer launched a formal probe, sending letters to Kalshi CEO Tarek Mansour and his counterpart at Polymarket seeking details on user verification and suspicious activity monitoring. Kalshi has responded aggressively. In the year leading to February 2026, it opened over 200 investigations into potential violations, resulting in public disciplinary actions. These included fines and multi-year suspensions for a MrBeast video editor trading on upcoming content and multiple congressional candidates betting on their own races. How the New Rule Works Per an advisory committee recommendation, users will soon submit an online form disclosing their employer for markets with elevated MNPI risk, such as those tied to political outcomes, corporate events, or policy decisions. *KALSHI PLANS TO REQUIRE USERS DISCLOSE WHERE THEY WORK TO MAKE CERTAIN TRADES WSJ tradfi news (@tradfi) June 9, 2026 According to WSJ, the rollout is expected in the coming weeks. This builds on existing measures: Detailed onboarding screens for high-risk individuals (politicians, officials, athletes), Real-time trade surveillance with third-party partners, Account freezes during probes, and referrals to the CFTC and DOJ when warranted. Kalshis CFTC-approved rules already ban trading with MNPI, as source-agency affiliates, or by those with outcome influence. Edge Over Crypto Rivals As a fully regulated exchange with mandatory KYC and fiat infrastructure, Kalshis enhanced controls reinforce its positioning for institutional and compliance-conscious participants. The policy adds targeted friction for affected trades but signals stronger integrity amid Washington scrutiny, potentially attracting capital wary of looser offshore or crypto-native alternatives. Details on exact triggering markets and enforcement will emerge soon via Kalshis rulebook and integrity hub. With prediction market volumes continuing to climb and regulators watching closely, this step could influence industry standards for balancing innovation with safeguards. Market participants and employers should review updated policies as implementation approaches.