Jul 4, 2026, 1:56 p.m.

2 min read

European Union flags fly in Brussels (Getty Images/Jacek Kadaj)

Summary

  • ESMA warns that some prediction-market event contracts may violate the EU's binary options ban if they function as financial instruments for retail clients.
  • Regulators emphasized that a product's actual function as a derivative matters more than its commercial name or labeling when assessing compliance.
  • Firms offering investment services linked to these products need MiFID II authorization, though they may also face national gambling or MiCA oversight.

The European Securities and Markets Authority (ESMA) said some prediction-market contracts may be covered by the European Union’s binary options ban, warning firms that yes-or-no event contracts cannot be marketed, distributed or sold to retail clients when they qualify as financial instruments.

“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.

The regulator targeted contracts whose payout is binary, usually a fixed amount or nothing, and depends on the outcome of a future event.

ESMA said the product label is irrelevant, as a contract sold as an “event contract” can still be a MiFID II financial instrument if its underlying falls within the derivatives categories.

Event contracts that qualify as financial instruments are derivatives, ESMA said. That puts them within the scope of national product intervention measures for binary options.

The warning comes as prediction markets expand across crypto and traditional finance. Kalshi and Polymarket have been discussed as potential M&A targets as operational lines blur between exchanges, brokerages and sportsbooks.

Kalshi was valued at $22 billion in its latest funding round, while Jump Trading has moved to take small stakes in Kalshi and Polymarket in exchange for liquidity provision.

ESMA said a coupon, reward or interest-like payment on user funds does not change the product's binary structure. Firms must assess legal classification based on the product’s features and functioning, not its commercial name.

The restriction is not limited to retail-facing platforms. ESMA said firms offering investment services linked to these products in the EU need MiFID II authorization even if distribution is limited to non-retail clients.

Event contracts may also fall under national gambling laws or, if tokenized and not financial instruments, under the block’s Markets in Crypto-Assets (MiCA) framework, ESMA said.

AI Disclaimer: Parts of this article were generated with the assistance from AI tools and reviewed by our editorial team to ensure accuracy and adherence to our standards. For more information, see CoinDesk's full AI Policy.

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