Two major prediction market platforms, Polymarket and Kalshi, are capturing significant investment attention as their valuations reportedly reach $20 billion. This surge comes as U.S. regulators weigh new rules for the sector, spurred by heated debate over contracts linked to Iranian political events.
Rising Demand and Media Partnerships
Prediction markets operate as digital platforms where users take positions on the likelihood of various events. Recently, Polymarket and Kalshi have emerged as prominent fintech players, especially for their event-focused contracts and data generation capabilities. Leveraging the real-time probability data from their users’ trades, both companies have sealed high-profile partnerships with media and data providers. CNBC’s long-term agreement with Kalshi and Dow Jones’ collaboration with Polymarket have ensured that market-generated data now features regularly in business news coverage.
These strategic tie-ups have elevated prediction market data to the same league as stock prices and opinion polls as direct news and analysis sources. However, as their visibility grows, these platforms are also falling under increasingly stringent legal and regulatory scrutiny.
Controversy Surrounding Iran-Related Contracts
A turning point arrived in early 2026, when Polymarket introduced contracts focused on developments in Iran. These contracts—centered on the timing of specific political events—drew $529 million in total trading volume. Particularly notable were contracts regarding whether Iran’s Supreme Leader Ali Khamenei would leave office, which attracted positions totaling $150 million. The fact that six accounts managed to earn $1.2 million in profits within hours raised suspicions of insider information and concerns about unfair advantages.
The high-profile nature of these transactions pushed Polymarket into the realm of regulatory oversight, moving it beyond its roots as a crypto industry product. Following the Iran contract controversy, U.S. Representatives Mike Levin and Chris Murphy began drafting legislation aimed at limiting prediction markets. Their proposed bill would empower lawmakers to decide which real-world events could be the subject of market contracts. At the same time, Commodity Futures Trading Commission (CFTC) Chair Michael Selig revealed that the regulator had notified the White House budget office of plans to implement new oversight for prediction platforms.
Recent developments highlight how contracts on sensitive topics—such as military actions or leadership changes—increase the risk of insider leaks. Regulators view the creation of clear, enforceable rules on which contracts prediction markets may offer as a crucial step to safeguard the integrity of these platforms.
Trust Issues and Platform Disputes
One of the biggest challenges facing prediction markets is maintaining user trust and transparency. Recently, Kalshi found itself at the center of a class-action lawsuit over its handling of contracts tied to Iran’s supreme leadership. Some users, who had bet that the leader would step down before March 1, alleged they were denied $54 million in payouts. Plaintiffs argued that Kalshi invoked a special clause covering death post-event in order to avoid honoring those contracts. In response, Kalshi maintained that rules concerning death clauses were transparent and universally applied, emphasizing that fees and account losses had been refunded where appropriate.
Such disputes not only undermine confidence among users but also strengthen regulatory concerns that markets tied to sensitive information could risk the disclosure of state secrets or privileged data.
Despite their sky-high valuations, Polymarket and Kalshi now face an uncertain outlook shaped by political and regulatory risk. The coming months are expected to bring greater clarity on the legal framework that will govern the operation of prediction markets in the U.S.
