Learn
Learn to read Japanese equity data
Japanese equity data has pitfalls that come from how companies disclose and which accounting standards they use. These guides explain them one by one, with ZENITH Code definitions and API examples.
Guides
- compare_arrowsTDnet vs EDINET: earnings summaries and annual reportsFast but unaudited earnings summaries vs audited annual reports: timing, audit and content, and how ZENITH Code merges both and labels the source.Read the guidearrow_forward
- account_balanceJGAAP vs IFRS vs US GAAP in Japanese filingsSome standards have no ordinary income or extraordinary items. How the three standards differ, what null means, and how to compare across them.Read the guidearrow_forward
- stacked_bar_chartCumulative quarters and TTM (trailing twelve months)Quarterly income figures are year-to-date. How to derive single quarters and TTM, and whether guidance is for this year or next.Read the guidearrow_forward
- paymentsJapanese dividend data pitfallsSplit adjustment, forecast vs actual, double-counted annual rows, streak rules and ex-dividend dates: where dividend data goes wrong.Read the guidearrow_forward
- historyPoint-in-time fundamentals: avoiding look-ahead biasNever use results before they were published. Market cap and PER histories that switch at the disclosure date, and their limits.Read the guidearrow_forward
- groupsReading large shareholding (5%) reportsFollow 5% rule filings as they are made. How they differ from the annual report's shareholder table, and current coverage limits.Read the guidearrow_forward
- smart_toyLet an AI agent research Japanese stocksHow to give Claude, GitHub Copilot, Cursor and other AI agents Japanese disclosure data through the ZENITH Code MCP server and API: example prompts and the tools they call, token budgeting, citing sources with provenance and sourceUrl, handling 429s and the rules for exchange data.Read the guidearrow_forward
- publicThe developer's guide to Japanese equity dataWhat Japanese equity data you can get through an API, how the Tokyo Stock Exchange and Japan's two disclosure systems (TDnet and EDINET) work, March fiscal years, securities codes, what you may redistribute, and how to make your first request.Read the guidearrow_forward
- filter_altBuild a Japanese stock screener with an APISet conditions from sector medians, filter Japanese stocks with /stable/screener, compare with ready-made screens (/stable/screener-presets) and turn the results into a table. With Python and JavaScript code.Read the guidearrow_forward
More guides are on the way.

