Wall Street, regulators see new threat taking shape in markets

Regulators and Wall Street are scrutinizing prediction markets like Polymarket and Kalshi after nine linked accounts made $2.4 million with a 98% win rate on U.S. military operations against Iran, raising concerns about insider trading and information asymmetry. The CFTC is also investigating suspicious oil futures trades linked to Iran negotiations, while a U.S. Army sergeant was arrested for allegedly using classified intel to profit from betting on Venezuelan president Nicolás Maduro’s capture." "article": "Wall Street and regulators are raising alarms over prediction markets, where traders bet on geopolitical events like elections, wars, and policy decisions. Platforms such as Polymarket and Kalshi now serve as real-time sentiment indicators, influencing markets before traditional investors react. This has created concerns about information asymmetry, where early access to signals or leaks could distort oil, currency, and equity markets. In May 2026, Bubblemaps revealed nine linked Polymarket accounts that collectively earned $2.4 million with a 98% win rate on U.S. military operations against Iran. The accounts accurately predicted strike timings, the removal of Iranian Supreme Leader Ali Khamenei, and a U.S.-Iran ceasefire announcement. Four accounts were created just days before the first strikes, and some placed small losing bets to evade detection. The issue escalated after the April 2026 arrest of U.S. Army Master Sgt. Gannon Ken Van Dyke, accused of using classified intelligence to bet on Venezuela’s Nicolás Maduro’s capture, profiting over $400,000. Van Dyke pleaded not guilty. Meanwhile, the CFTC is probing suspicious oil futures trades ahead of President Donald Trump’s confirmation of progress in Iran negotiations. Existing insider trading laws focus on corporate disclosures, not geopolitical events, leaving a regulatory gap. IronWallet CEO Ermo Eero warned that prediction markets create faster, sharper information advantages than regulators have previously faced. Bubblemaps CEO Nicolas Vaiman called the Polymarket pattern ‘insane,’ dismissing luck as an explanation. The debate highlights how prediction markets blur the line between speculative betting and market manipulation, forcing regulators to adapt frameworks designed for equities to a new financial frontier.