Thomas Peterffy Says There Should Be No Bans on Insider Trading

Billionaire Thomas Peterffy, founder of Interactive Brokers, argues that insider trading bans should be abolished, claiming they harm societal progress rather than protect markets. He contends that prediction markets—platforms trading on future events—would function more efficiently if insider trading were legalized, as it reflects real-world knowledge. Peterffy’s stance challenges decades of financial regulation, framing insider trading as a tool for accurate price discovery rather than market manipulation. His comments, made in April 2026, target growing debates over prediction markets’ role in forecasting economic, political, and scientific outcomes. The proposal ignites ethical and legal controversies, questioning whether unrestricted information flow justifies dismantling long-standing securities laws.