ESMA Warns Unauthorized Crypto Prediction Platforms

TLDR

ESMA has warned that major crypto-based prediction platforms operating in the EU lack required authorization, highlighting regulatory and market conduct risks for Polymarket, Kalshi, and similar services.

1. ESMA says marketing and selling event contracts in the EU generally requires authorization, which large prediction platforms currently do not have under MiFID II, MiCA or gambling rules.
2. The regulator flags insider trading, manipulation, and retail losses on crypto-settled prediction markets, which already process billions of dollars in quarterly volume.
3. National blocks and future licensing under MiCA or financial rules are likely flashpoints for EU users and platforms, making regulatory adaptation a key risk to watch.

Deep Dive

1. ESMAs Core Warning

In its latest risk monitoring report, ESMA states that event contracts offered by prediction platforms can fall under financial instruments (MiFID II), crypto-assets (MiCA), or national gambling law, and typically require EU authorization to be marketed and sold. The report explicitly notes that major platforms such as Polymarket and Kalshi do not hold this authorization and therefore sit outside the normal EU licensing framework for derivatives and crypto products, according to a detailed regulation overview.

Where event contracts are classified as financial instruments, ESMA indicates they are treated as derivatives and effectively caught by existing binary options bans for retail investors, limiting legal access for EU retail traders. The regulator also questions why these platforms only block some EU countries and stresses that VPNs can easily bypass geographic restrictions.

2. Risks For Users And Markets

ESMA highlights prediction markets as an emerging risk, focusing on pseudonymous crypto settlement that makes insider trading, wash trading, and coordinated manipulation harder to detect. Examples cited include wallets earning over one million dollars ahead of geopolitical events and tightly linked accounts with extremely high win rates on specific contracts, as described in an insider trading review.

At the same time, volumes are large: quarterly prediction turnover reached around twelve billion dollars on Polymarket and eight point eight billion dollars on Kalshi in late 2025, according to a risk summary. ESMAs concern is that retail users often lose money, a tiny minority captures most gains, and conduct risks could spill over into broader crypto markets as links with traditional finance deepen.

3. Next Steps And What To Watch

ESMAs warning is not yet a blanket EU ban, but it raises the likelihood of further national enforcement such as IP or DNS blocks. Spain and France have already moved against Polymarket and similar sites under gambling and authorization rules, as outlined in an EU enforcement briefing.

Looking ahead, there are two main paths. Platforms could seek MiFID II or MiCA-compliant licenses, which ESMA notes could take significant time and would set precedents for hybrid derivatives and crypto contracts. Alternatively, more countries may follow Spain and France with blocks or fines, while a few jurisdictions like Malta explore bespoke prediction-market frameworks. For crypto users, the practical step is to check whether any platform they use is authorized in their country and be prepared for access restrictions or product changes as rules tighten.

Conclusion

ESMAs warning places crypto-based prediction markets firmly within the EUs investor-protection lens, treating many event contracts like regulated derivatives or gambling products rather than niche novelty bets. For crypto users and platforms, the key pressure points are authorization status, conduct risk controls, and evolving MiCA and national rules that could reshape which prediction products remain accessible in Europe.