Polymarket, the world's largest prediction market platform by trading volume, has appointed a Japan-based representative to lobby regulators for formal market authorization, with a stated target of operating legally in the country by 2030. The move, reported by Bloomberg on May 22, forms part of a broader international expansion push by the company, which recently raised $400 million at a $15 billion valuation. That fundraise follows a prior $600 million investment by Intercontinental Exchange, the parent company of the New York Stock Exchange, and comes as the company is reportedly planning an IPO. Together, these developments signal the depth of institutional backing behind its regulatory strategy.

The representative is Mike Eidlin, who previously served as Head of Japan for Jupiter, a Solana-based decentralized exchange aggregator that integrated Polymarket into its platform in early 2025. Eidlin declined to comment to the Japan Times on whether he is formally working with Polymarket. Regulatory outreach is directed primarily at Japan's Justice Ministry rather than its financial regulators, a detail that signals where the core legal problem actually sits.

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The core obstacle is not crypto law

Japan has moved steadily toward a more defined crypto framework. On April 10, 2026, the cabinet approved an amendment to the Financial Instruments and Exchange Act (FIEA) that would classify crypto assets as financial instruments on par with stocks and bonds, with Diet passage and implementation expected as early as 2027. A separate tax reform package introduced a flat 20 percent capital gains rate for qualifying crypto assets, along with a three-year loss carryforward provision; implementation of those tax measures may be delayed to 2028. Japan has also designated 2026 its "Digital Year" for financial reform.

None of that directly helps Polymarket. Prediction markets in Japan face a separate and older problem: Article 185 of the Penal Code, which criminalizes wagering on uncertain outcomes. Japan's National Police Agency has stated publicly that connecting to an overseas online casino from within Japan constitutes a crime, regardless of where the operator is based. One legal analyst summarized the structural gap plainly: "Until that changes, these products are pulled toward the gambling bucket rather than the financial infrastructure bucket by default."

Japan has no regulatory category equivalent to the United States "event contract" framework, which allowed US-based prediction market operator Kalshi to secure oversight from the Commodity Futures Trading Commission. Without a comparable classification, prediction market products in Japan have no formal legal home outside gambling law. Japan's Virtual and Crypto Assets Exchange Association urged investor caution regarding prediction market platforms as recently as April 3, 2026.

Domestic Japanese operators have already begun navigating the same constraint. In October 2025, gumi and Gc Labs announced a blockchain and AI prediction market study conducted with an explicit compliance focus. A separate service, POYP, operates on a points-based model designed to stay outside cash-wagering laws entirely. Both examples suggest that Japan's near-term ecosystem favors prediction products that avoid direct monetary stakes while operators wait for the legal landscape to shift.

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Polymarket's platform already carries Japan-specific content

Despite the legal grey area, Polymarket currently lists more than 250 Japan-related event contracts, covering Bank of Japan rate decisions, domestic elections, and macroeconomic indicators. Japanese users are technically able to access the platform, but doing so exists in legally uncertain territory under current law.

The platform processed more than 95 million on-chain transactions during 2025 and recorded $10.57 billion in monthly trading volume in March 2026, its first time crossing the $10 billion monthly threshold. Volume pulled back roughly 9 percent to $10.3 billion in April, the first monthly decline in eight months. Monthly unique wallets reached approximately 840,000 by February 2026, nearly triple the figure from six months prior. The broader global prediction market sector recorded $25.7 billion in volume in March 2026 alone, with investment firm Bernstein projecting full-year 2026 volume at $240 billion.

Polymarket operates primarily on Polygon but expanded to Solana via the Jupiter integration in February 2025. Eidlin's background at Jupiter gives him an existing network among Solana-native traders in Japan. Analysts note that this network may provide a practical channel for user outreach if regulatory conditions eventually improve.

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What Japan's decision could mean for the rest of Asia

Japan's regulatory choices carry significant weight across the region. If Polymarket successfully lobbies for a new legal classification that separates prediction markets from gambling, it could serve as a reference point for South Korea, Thailand, and the Philippines. A formal rejection from the Justice Ministry would likely have the opposite effect, giving other governments cover to enforce stricter access restrictions.

India presents a parallel case. The Reserve Bank of India was reported in April 2026 to be exploring guidelines for prediction markets following concerns about rapid unregulated growth. India currently applies a 30 percent tax rate on digital asset gains and lacks an event contract classification of its own. The lobbying strategy Polymarket is deploying in Japan, focused on financial instrument reclassification rather than gambling liberalization, could become a blueprint for operators targeting other large Asian markets.

Localization remains an unsolved problem across the region. Four Pillars Research has observed, in analysis focused on the Korean market, that prediction markets are heavily oriented toward Western political and financial events, which limits organic uptake even where access is unrestricted. That finding is widely seen as applicable across Asia more broadly. Japan's 250-plus local contracts represent a start, but meaningful market penetration would require Japanese-language interfaces, locally sourced event coverage, and community investment well beyond what regulatory lobbying alone can deliver.

The 2030 target leaves Polymarket considerable runway. Investors and developers tracking the platform should watch for two near-term signals: whether FIEA passes the Diet and how the Justice Ministry responds to initial lobbying contact on the gambling classification question.