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Other Disclosures3903gumi Inc.Information and Communications, Services and Others

Notice of the establishment of the Prediction Market Workshop within the Japan Digital Economy Alliance’s Tokenization Project Team and the Company’s appointment as lead managing entity

A workshop was established within the Japan Digital Economy Alliance to consider the practical implementation of prediction markets in Japan, and gumi became the lead coordinating company. The 17 participating companies will examine prediction-market mechanisms in light of legal frameworks and social acceptance.

Worth reading
71In focus
0–100. This measures how worthwhile something is to read, not how good or bad the company is.
Direction
Neutral
Direction inferred from the company’s description.
Scale
17
Participating companies
Wording
Conditional
How definitive the wording is.

Announced details

Japan-style prediction market
Applicable field (uses covered by this announcement)

Finance, politics, sports, entertainment, news media, participatory media, content, purchasing, voting, financial services

Launch date6 August 2026 (activities commenced; actual)
Relationship between the counterparty and the company
gumi Inc.3903
Relationship with the Company

As a member company of the alliance, gumi became the lead coordinating company for the Prediction Market Workshop.

CounterpartyJapan Digital Economy Alliance

1-6-1 Roppongi, Minato-ku, Tokyo. Established on 15 April 2022. As a cross-industry general economic organization, the alliance aims to invigorate economic activity through the use of digital technologies, promote the sound development of the Japanese economy, and realize more prosperous lives for the public. It has 222 member companies as of August 2026.

Location (as indicated in this announcement)

17 participating companies

In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.

Announced details
ItemDetails
Names of Products / Services CoveredJapan-style prediction market
CounterpartyJapan Digital Economy Alliance
Counterparty overview1-6-1 Roppongi, Minato-ku, Tokyo. Established on 15 April 2022. As a cross-industry general economic organization, the alliance aims to invigorate economic activity through the use of digital technologies, promote the sound development of the Japanese economy, and realize more prosperous lives for the public. It has 222 member companies as of August 2026.
Relationship with the CompanyAs a member company of the alliance, gumi became the lead coordinating company for the Prediction Market Workshop.
Launch date6 August 2026 (activities commenced; actual)
Applicable areaFinance, politics, sports, entertainment, news media, participatory media, content, purchasing, voting, financial services
Location scale17 participating companies
Items this document does not state (11)
Contract ValueOffering priceContract DateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocationQuantitative EffectsUsage historyImpact on Business PerformanceSource

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

To use prediction markets not for speculation or betting, but as an information and participation platform that visualizes the collective intelligence of many participants, and to examine use cases and implementation requirements suited to Japan's legal frameworks and social environment.

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Notice of the establishment of the Prediction Market Workshop within the Japan Digital Economy Alliance’s Tokenization Project Team and the Company’s appointment as lead managing entity | gumi Inc. (3903) timely disclosure | Komori