The European Securities and Markets Authority (ESMA) has recently turned its attention to two prominent prediction‑market platforms, Polymarket and Kalshi, questioning whether their operations can be legally sustained within the European Union. The regulator’s concerns centre on the classification of the platforms’ event‑based contracts and the adequacy of the existing authorisation framework to cover such products. In its latest statement, ESMA highlighted three principal regulatory pathways that could potentially bring these contracts under EU oversight: the longstanding ban on binary options, the newly introduced Markets in Crypto‑Assets (MiCA) regulation, and the diverse national gambling statutes that each member state maintains. **Binary‑Option Ban and Its Relevance** Since 2018, the EU has maintained a blanket prohibition on binary options for retail investors, deeming them high‑risk, all‑or‑nothing products that often lack transparency and can be used for speculative gambling rather than genuine investment.
The ban was introduced after a wave of consumer‑protection complaints and investigations that revealed many providers were operating without proper licensing, offering misleading risk disclosures, and employing aggressive marketing tactics. Under the ban, any contract that pays out a fixed amount based on a binary outcome—such as “yes” or “no” to a specific event—falls squarely within the prohibited category. Polymarket and Kalshi both offer contracts that settle on the occurrence or non‑occurrence of real‑world events, ranging from political outcomes to economic indicators.
While the platforms argue that their products differ from traditional binary options because they are settled on verifiable data feeds and often allow participants to hedge or diversify, ESMA points out that the core payoff structure remains binary. Consequently, the regulator is assessing whether the existing ban should be extended to encompass these newer, technology‑driven platforms, or whether a tailored exemption might be justified. **MiCA and Crypto‑Asset Classification** The Markets in Crypto‑Assets Regulation, which became fully applicable in 2024, introduced a comprehensive framework for a wide array of digital assets, including utility tokens, stablecoins, and certain types of derivatives. MiCA aims to provide legal certainty, protect investors, and prevent market abuse while fostering innovation within the EU’s digital finance sector.
One of the key questions ESMA raises is whether the event contracts offered by Polymarket and Kalshi could be deemed "crypto‑assets" under MiCA’s definition. MiCA defines a crypto‑asset as a digital representation of value or rights that can be transferred and stored electronically, and that may be used for payment or investment purposes. If the contracts are tokenised—i.e., represented by blockchain‑based tokens that can be bought, sold, or transferred—then they could fall under MiCA’s jurisdiction. This would trigger a suite of compliance obligations, such as obtaining a crypto‑asset service provider (CASP) licence, implementing robust anti‑money‑laundering (AML) procedures, and adhering to transparency and disclosure standards.
Moreover, MiCA imposes specific rules on the issuance of “crypto‑asset derivatives,” which could be directly relevant to prediction‑market contracts that derive their value from external events. ESMA’s analysis therefore focuses on the technical architecture of Polymarket and Kalshi.
If the platforms rely on blockchain technology to issue and settle their contracts, they may be required to register as CASPs in each member state where they operate, or alternatively, seek a passported licence that allows cross‑border provision of services. Failure to secure the appropriate authorisation could result in enforcement actions, including fines, market bans, or orders to cease offering the disputed contracts. **National Gambling Laws** Beyond the EU‑wide instruments, each member state retains its own gambling legislation, which often includes provisions for games of chance, betting, and other wagering activities.
Many jurisdictions draw a line between traditional gambling and financial speculation, but the distinction can be blurry when it comes to event‑based contracts. In countries such as France, Germany, and Italy, gambling regulators have historically taken a strict stance on products that resemble betting on political or sporting outcomes, requiring operators to obtain specific gambling licences. Polymarket and Kalshi’s business models involve users placing stakes on the outcome of real‑world events, a structure that resembles betting more than conventional financial trading.
If national authorities interpret these contracts as forms of gambling, the platforms could be compelled to apply for gambling licences, comply with advertising restrictions, implement age‑verification protocols, and contribute to responsible‑gaming initiatives. The regulatory landscape is further complicated by the fact that some EU states have already begun to draft or amend legislation to explicitly address prediction markets, acknowledging the rapid growth of this sector. **Potential Path Forward for the Platforms** In response to ESMA’s concerns, both Polymarket and Kalshi have indicated a willingness to engage with regulators and explore possible compliance pathways.
Options under consideration include: 1. **Re‑structuring the product design** to move away from a pure binary payoff model, perhaps by introducing multi‑outcome or continuous‑range contracts that could be classified as traditional derivatives rather than binary options. 2.
**Securing a MiCA‑compatible licence** by partnering with an existing EU‑based crypto‑asset service provider, thereby leveraging an established compliance infrastructure. 3.
**Obtaining national gambling licences** in key markets, which would involve meeting the stringent consumer‑protection and responsible‑gaming standards set by each jurisdiction. 4.
**Implementing robust AML/KYC procedures** and transparent reporting mechanisms to satisfy both financial and gambling regulators. **Implications for the Wider Industry** ESMA’s scrutiny of Polymarket and Kalshi serves as a bellwether for the broader prediction‑market and crypto‑derivative ecosystem.
As more innovative platforms emerge, regulators across the EU are likely to adopt a more proactive stance, seeking to close gaps that could be exploited for illicit activity or consumer harm. The outcome of this regulatory review will shape how digital‑first financial products are classified, licensed, and supervised throughout the single market. Stakeholders—including investors, developers, and legal counsel—should monitor forthcoming guidance from ESMA and national authorities closely.
The evolving regulatory environment may necessitate adjustments to product offerings, technology stacks, and compliance frameworks. Companies that anticipate these changes and adapt early will be better positioned to maintain market access and build trust with both regulators and users. In summary, ESMA’s recent statement underscores the complexity of applying existing EU financial and gambling regulations to novel, blockchain‑enabled prediction markets. Whether Polymarket and Kalshi will be required to operate under the binary‑options ban, fall within the MiCA regime, or obtain gambling licences remains to be seen.
What is clear, however, is that the regulator expects these platforms to demonstrate a clear authorisation strategy that safeguards investors, prevents market abuse, and aligns with the EU’s overarching objectives of financial stability and consumer protection.