European securities regulator ESMA (European Securities and Markets Authority) has issued a public statement clarifying that prediction market platforms offering "event contracts" with binary payouts are subject to a financial ban in place since 2018. These contracts, which offer a fixed payout for a correct "yes" or "no" answer on a future event and nothing if incorrect, are deemed binary options if the underlying question relates to asset classes covered by MiFID II (e.g., interest rates, currencies, commodity prices, financial indices, or climatic/economic variables). The marketing, distribution, or sale of such products to retail investors has been prohibited since 2018 due to their high-risk nature, which historically led to significant losses for small traders.

This statement provides a formal basis for financial regulators to act alongside gambling regulators, who had already begun coordinating action against unlicensed prediction market platforms. Previously, nine European gambling authorities from countries including Belgium, France, Germany, Italy, and Spain pledged coordinated action against these platforms, particularly during events like the World Cup. Now, prediction market platforms face scrutiny from both gambling and financial law perspectives, requiring them to address two classification questions: whether their contracts constitute gambling and whether they are financial instruments.

The regulatory crackdown is driven by concerns over insider trading and a lack of consumer protection. Prediction markets often allow anonymous trading using cryptocurrencies, raising suspicions that participants could be leveraging non-public information. The US Commodity Futures Trading Commission (CFTC) has also highlighted policing insider trading in prediction markets as a priority, with recent cases involving individuals like a Google employee accused of using internal data to profit on "Year in Search" contracts, and an army soldier allegedly using inside information before a high-profile capture. This increased scrutiny is prompting companies like Goldman Sachs and Morgan Stanley to develop or update policies to restrict employees from trading on specific event contracts, particularly those related to the company, elections, financial markets, or macroeconomic data.