Kalshi Moves to Block Insider Trading With Mandatory Employment Disclosures
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A Shift Toward Proactive Surveillance
Kalshi, the CFTC-regulated prediction market, is tightening the screws on how users access sensitive bets. The platform is rolling out a series of “market integrity measures” that will, for the first time, require certain users to disclose where they work before they can place trades on specific markets. The move marks a significant pivot from reactive monitoring to a proactive screening process designed to stave off insider trading.
At the heart of this new system is a proprietary “risk score” assigned to every market. According to a company news release, markets deemed to have a higher susceptibility to market manipulation or the use of non-public information will trigger a screening process. If a market hits a certain risk threshold, traders will be required to submit employment information to ensure they don’t possess an unfair informational advantage over the general public.
The policy shift stems from a February report by an internal advisory committee. The findings were blunt: Kalshi’s existing systems were primarily forensic, meaning they identified suspicious trades only after the money had already changed hands. To bridge this gap, the company is moving the verification process to the front end of the trade.
The Regulatory Tightrope
For Kalshi, these measures are as much about political survival as they are about market fairness. While the platform operates under the oversight of the Commodity Futures Trading Commission (CFTC), it has faced mounting pressure from federal lawmakers. In March, the U.S. House Oversight and Government Reform Committee launched an investigation into insider trading across prediction markets, signaling that the “Wild West” era of event-based betting is drawing to a close.
The company’s head of enforcement, Robert DeNault, framed the changes as a leadership move. “By implementing these new integrity measures, we continue to lead the industry on the issue of market integrity amongst federally regulated prediction markets,” DeNault stated. This positioning is a direct shot at offshore competitors who operate without the same level of U.S. regulatory scrutiny.
The scrutiny isn’t just federal. In Arizona, the state’s Attorney General filed criminal charges in March, alleging that Kalshi operates as an unlicensed gambling operation. While Kalshi has dismissed these claims as “meritless,” the company is fighting a two-front war: defending its legal right to exist as a financial exchange while proving it can police its own users.
Defining ‘National Security’ Risks
The new vetting process will also apply to the very creation of markets. Before a new event is listed, Kalshi will now weigh factors including regulatory risk and potential threats to national security. This is a delicate balance; while the platform maintains a strict ban on markets involving war, assassination, or violence, the company acknowledged that standard bets on foreign policy or government leadership can still create incidental security concerns.
This cautious approach follows a series of high-profile scandals that have plagued the broader prediction market ecosystem. While Kalshi already blocks members of Congress and high-ranking cabinet officials—and their immediate families—from trading, the platform has still dealt with volatility. Earlier this year, Kalshi flagged suspicious activity involving former Congressman George Santos to the CFTC and the Department of Justice. Santos had allegedly bet against his own attendance at a State of the Union address he never actually attended.
The Contrast with Offshore Rivals
The divergence between Kalshi and its primary rival, Polymarket, is becoming a defining characteristic of the industry. Polymarket, which operates offshore and does not require identity verification for all users, has recently become a magnet for DOJ investigations. In May, a Google employee was charged with utilizing internal search trend data to net $1.2 million on the platform. Similarly, a U.S. special forces soldier recently pleaded not guilty to charges of using classified intelligence regarding the capture of Venezuelan president Nicolas Maduro to make a $400,000 bet.
By integrating employment checks and whistleblower tools for reporting “abusive trading activity,” Kalshi is betting that transparency and compliance will be its primary competitive advantage. As the DOJ continues to target insider trading in digital assets and event markets, the industry is splitting into two camps: those who embrace the friction of regulation and those who gamble on the anonymity of the offshore web.
