EU warns prediction markets off-limits to retail under MiFID II
The European Union warned that many prediction markets and event contracts are off-limits to retail investors under the Markets in Financial Instruments Directive (MiFID II). The regulator stated that the legal classification of a product depends on its characteristics rather than how it is labeled, and that many event contracts may qualify as binary options, which have been banned for retail traders under the directive.
ESMA's binary-options framing means retail bans already on the books could block Kalshi and Polymarket from expanding into the EU's 448 million consumers before any license application is filed. Kalshi's reported $22 billion valuation assumes geographic growth beyond the United States; a frozen European retail market forces reliance on institutional or professional-client carveouts that shrink the addressable base.
The platforms must now argue product-by-product that their contracts are not binary options, or pursue wholesale MiFID II compliance. Either path bleeds resources from their American legal defense against state gambling suits and CFTC preemption litigation in Kentucky and Minnesota. A European class-action or national enforcement trigger would make this a three-front war. The EU warning comes without any new lawmaking, turning an old directive into a new barrier.