Federal prosecutors in Manhattan are examining whether a series of highly profitable trades on prediction markets may have violated insider trading and related laws, marking a significant escalation in scrutiny of a fast-growing but lightly regulated corner of the digital economy.
According to a report by CNN, officials from the securities and commodities fraud unit of the US Attorney’s Office for the Southern District of New York recently met with representatives from Polymarket to discuss how existing legal frameworks could be applied to potential misconduct. The outreach signals that federal authorities are increasingly prepared to test the boundaries of current statutes in a market that has, until now, operated with limited direct enforcement.
The investigation appears to focus on a series of well-timed trades tied to geopolitical and high-profile events, including bets related to the capture of Venezuelan President Nicolás Maduro and the timing of potential conflict involving Iran, per CNN. Such trades have raised questions about whether participants were simply making informed predictions or acting on material nonpublic information.
Federal prosecutors have emphasized that prediction markets are not exempt from longstanding financial laws. A spokesperson for the US attorney’s office noted that insider trading statutes, anti-money laundering rules, anti-fraud provisions and market manipulation prohibitions all potentially apply to activity on these platforms.
The Justice Department’s interest comes amid a broader regulatory vacuum and growing tension between federal and state authorities over how prediction markets should be governed. At the federal level, oversight formally falls to the Commodity Futures Trading Commission (CFTC), which requires platforms operating in the United States to register as designated contract markets and implement surveillance and compliance controls. However, enforcement has been limited, with no criminal prosecutions or civil cases brought to date specifically targeting prediction market trades.
The federal probe of Polymarket also comes as Intercontinental Exchange (ICE), the parent of the New York Stock Exchange, recently completed the first $600 million tranche of a planned $2 billion investment in the platform, which could further subject the event market to scrutiny by the Securities and Exchange Commission (SEC), which has oversight of NYSE.
Read more: Federal Court Rules Nevada Can Seek to Bar Prediction Markets Despite CFTC Objection
The CFTC has signaled support for expanding prediction markets, including through the creation of a new task force aimed at fostering market development while improving oversight tools. This approach has allowed platforms such as Polymarket and Kalshi to grow rapidly, particularly in areas like election forecasting and event-based trading.
State regulators, by contrast, have taken a more aggressive posture. Arizona recently filed criminal charges against Kalshi, alleging illegal gambling and unlawful election wagering, while California has moved to restrict state officials from using insider knowledge in such markets. A wave of civil litigation backed by state attorneys general further highlights the fragmented regulatory landscape.
This divergence has created a complex compliance environment in which market participants must navigate inconsistent rules across jurisdictions. It also complicates federal enforcement efforts, particularly where trades occur on offshore platforms beyond the reach of US regulators.
Legal experts that spoke to CNN caution that prosecuting insider trading in prediction markets presents significant challenges. Unlike traditional securities markets, where fiduciary duties and information asymmetries are well established, prediction markets operate in a more ambiguous legal space. Prosecutors would need to demonstrate not only that traders possessed material nonpublic information but also that they breached a duty of trust or confidence—an element that may be difficult to establish given the structure of these platforms.
In response to mounting scrutiny, major market operators are moving to strengthen internal compliance frameworks. Polymarket and Kalshi have both introduced new rules prohibiting trading based on confidential information and restricting participation by individuals with direct stakes in underlying events, such as politicians or athletes. Kalshi, in particular, has highlighted its enforcement actions, including bans and referrals to law enforcement.
The federal probe comes at a pivotal moment for prediction markets, which are increasingly viewed as valuable forecasting tools but remain vulnerable to manipulation risks. As lawmakers consider new legislation to clarify permissible activity—including potential bans on trading by public officials—the outcome of the Justice Department’s inquiry could play a critical role in shaping the regulatory trajectory of the sector.
For now, the investigation underscores a central tension: whether existing financial laws can be effectively applied to novel digital markets, or whether a more tailored regulatory framework will ultimately be required.
