ESMA questions prediction markets over EU rules

TLDR

The EU regulator ESMA is challenging how major prediction markets fit under European financial, crypto, and gambling rules, and warning that many currently lack required authorization.

1. ESMA says platforms like Polymarket and Kalshi sell event contracts that often need EU authorization, but currently operate in a regulatory gray area.
2. The regulator flags insider trading, manipulation, and smart contract risks on crypto?settled prediction markets, citing concrete cases and calling platform controls largely reactive.
3. For EU crypto users, access is already constrained and could tighten further, while traditional exchanges explore more regulated prediction?style products.

Deep Dive

1. ESMA's Legal Concerns

In its latest risk monitoring report, ESMA devotes a chapter to prediction markets and states that the largest platforms lack the authorization generally required to market and sell event contracts in the EU, including Polymarket and Kalshi, which it names directly in the report on prediction markets and geo?blocking practices. Event contracts can be classified in several ways: as financial instruments under MiFID II, as crypto assets under MiCA, or as gambling products under national law, depending on structure and settlement terms.

Where these contracts qualify as financial instruments, ESMA notes they are usually treated as derivatives and subject to national product?intervention bans on binary options, which prohibit marketing and sale to retail investors. It also questions why Polymarket and Kalshi restrict only some EU member states and highlights that VPNs can easily bypass such partial geo?blocks, as summarised in a detailed community recap of ESMAs stance on prediction markets and MiCA authorization.

2. Insider Trading And Market Risks

ESMA goes beyond legal categorization and describes prediction markets as rife with inside trading, documenting multiple incidents involving wallets that earned large sums from geopolitical and other event bets shortly before news became public, and a U.S. Army master sergeant charged over profits tied to a Polymarket contract on the capture of Venezuelas president, in its discussion of insider trading cases on prediction platforms.

The regulator stresses that pseudonymous trading and limited identity verification on DLT?based platforms make suspicious activity harder to detect, and criticizes platform responses as mostly reactive, coming only after profits are taken. It also flags risks around contract resolution, data sources (for example, tampered weather sensors), and smart contract execution, all of which matter directly for crypto?settled event markets.

3. Impact On Crypto Prediction Platforms

ESMA notes that prediction markets remain relatively limited in scale inside the EU, and points out that this is driven by rules rather than lack of demand, while volumes on Polymarket and Kalshi have surged elsewhere, reaching tens of billions of dollars per month according to recent volume estimates and Maltas exploratory framework work. National authorities in France and Spain have already blocked access in some cases, and Malta is the only EU country openly working on a dedicated regime.

At the same time, major exchanges such as Eurex, Euronext, CME Group, Cboe, ICE, and Nasdaq are exploring prediction?style products and infrastructure, signalling that regulated variants of event trading may grow even if current crypto?native platforms face tighter constraints.

Conclusion

ESMAs critique frames crypto?linked prediction markets as both legally unsettled and operationally risky, especially around insider trading and contract design. That increases the odds of more consistent EU enforcement and pushes the market toward either fully regulated products on traditional venues or jurisdiction?specific regimes such as Maltas. For crypto users and builders, the opportunity is real, but future access and business models in Europe will depend on how MiFID II, MiCA, and gambling rules are ultimately applied to event?based contracts.