ESMA Warns Prediction Markets May Breach EU’s Binary Options Ban for Retail

The European Securities and Markets Authority (ESMA) has warned that some prediction-market event contracts may fall foul of the European Union’s binary options ban, effectively barring their marketing, distribution or sale to retail investors when the products qualify as financial instruments. The regulator’s statement lands as prediction markets like Kalshi and Polymarket expand rapidly across crypto and traditional finance, according to CoinDesk.

“This means that the marketing, distribution or sale to retail clients of event contracts that meet the definition of financial instruments is prohibited,” ESMA said in a statement cited by CoinDesk.

Substance Over Labeling

ESMA’s warning targets contracts with binary payoffs — a fixed amount or nothing — that hinge on the outcome of a future event. The regulator stressed that how a product is branded commercially has no bearing on its legal classification.

A contract marketed as an “event contract” can still be treated as a MiFID II financial instrument if its underlying asset falls within the EU’s derivatives categories, ESMA said. Where that classification applies, the contract is automatically caught by national product intervention measures governing binary options.

The regulator also addressed a possible workaround: adding a coupon, reward or interest-like payment to user funds does not alter the underlying binary structure of a product, according to ESMA. Firms are expected to assess a contract’s legal status based on its features and functioning rather than its commercial packaging.

Authorization Requirements Extend Beyond Retail

ESMA clarified that the restriction is not confined to platforms serving retail customers directly. Firms offering investment services linked to these products within the EU need MiFID II authorization even if their distribution is limited strictly to non-retail clients, the regulator said.

Beyond securities rules, ESMA noted that event contracts could also be subject to national gambling laws. Alternatively, if the products are tokenized and do not meet the definition of financial instruments, they may instead fall under the bloc’s Markets in Crypto-Assets (MiCA) framework.

A Booming, Blurring Market

The guidance arrives as prediction markets attract serious institutional interest. Kalshi was valued at $22 billion in its most recent funding round, CoinDesk reports, while Jump Trading has taken small stakes in both Kalshi and Polymarket in exchange for providing liquidity.

Both platforms have also been floated as potential M&A targets as the lines between exchanges, brokerages and sportsbooks continue to blur. ESMA’s intervention suggests EU regulators intend to keep close scrutiny on this convergence, particularly where retail investors could be exposed to products functioning as high-risk derivatives under a different name.

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