Japan IR Index
A consistent way to examine English IR.
Japan IR Index examines the information Japanese listed companies make available to overseas investors in English. It checks published materials for content, timing and accessibility, as well as availability.
What the Index is for
Adding more documents does not necessarily help investors find the information they need. The Index helps companies identify gaps, find useful disclosure examples and set priorities ahead of their next results announcement or shareholder meeting.
34 questions across five areas
Weights follow the current assessment rubric. Individual scores and sources are available on company pages.
F · 30% · 8 questions
Financial information
Results releases, financial statements, segment information and reusable numerical data.
S · 25% · 7 questions
Strategy and management communication
Management plans, presentations and Q&A, growth drivers and comparisons of targets with results.
G · 20% · 7 questions
Governance and shareholder meetings
Boards, remuneration, meeting materials, voting results and cross-shareholdings.
O · 15% · 7 questions
Access and navigation
English IR navigation, document links, archives and contact routes.
R · 10% · 5 questions
Timing and Japanese–English alignment
Release timing, timely disclosures and the status of English versions.
How to read the scores
Questions are generally scored from 0 to 5, with weighted area scores producing a total out of 100. Scores organize disclosure findings; they do not measure investment merit or management quality.
Separate unreviewed items from unsuccessful searches
Where items remain unreviewed, the site shows a floor treating them as zero alongside a value adjusted for reviewed items. The latter is not a theoretical maximum assuming full marks for missing items. Read scores together with the review date and coverage.
Three steps to a practical improvement list
Find your company
Check the review date, item scores and sources against your current disclosures.
Explore useful examples
Examine how other companies provide financial downloads, Q&A or voting results.
Agree ownership and completion checks
Use the guide to prioritize work, from organizing existing materials to preparing the next release.
Before comparing companies
Covered companies are a selected research cohort, not a representative random sample of Japan’s market. Do not rank companies by totals alone when sector, size, review date, rubric or coverage differ. The directory is alphabetical by English name.
Capital-action research is separate
Execution and outcomes of selected buybacks, disposals and other capital decisions are tracked separately. They are not added to the 34-question disclosure score.
If your company is missing
Contact the administrator with your name, title, company affiliation and the company requested. We will review the request and add coverage at the earliest opportunity.