Japan Stock Files reads the paperwork of the Japanese market and writes down, in English, what it says. It is free, it is unsigned, and it is published by a company you can look up.
Around 3,900 companies are listed in Tokyo. Most of them file everything the law requires, on time, in full — and in Japanese. English disclosure is not required for annual securities reports, and the Tokyo Stock Exchange's 2025 requirement reaches only its top tier and only certain documents. For a large part of the market, the primary record simply does not exist in the language most of the world's money reads.
That gap is the whole publication. We are not trying to be a terminal, a data vendor, or a place you check prices. We are trying to be the place where a filing that nobody translated gets read out loud.
ZUZU Inc. (株式会社ZUZU), a company registered in Japan, is the publisher and is responsible for everything on this site. Its registration is a matter of public record in the Japanese commercial registry.
Editorial and correction enquiries: [email protected]. Anything else: [email protected].
We publish without bylines. Not to hide — the publisher is named above and the registry is public — but because a byline invites you to weigh the writer instead of the filing. In a market where most English-language commentary is downstream of somebody's book, the least useful thing we could offer is another personality. Weigh the filing.
This also means no article here is attributed to an AI author. A machine drafts, a machine argues with the draft, and the publisher decides what goes out. The responsibility does not move.
It is free, and there is no paid tier, no member area, and no payment is ever requested. There is no advertising on this site and no sponsored content. If that ever changes, it will be labelled where you cannot miss it, and it will never be a company we write about, its affiliates, or an affiliate of the publisher's parent.
Being free is not generosity. Analysis that is free to everyone, addressed to nobody in particular, is a publication. The moment it goes behind a wall and starts telling individual subscribers what to do with their money, it is a different regulated thing entirely — one we have no intention of becoming.
Not investment advice. We publish factual information and general commentary to an unspecified readership; we do not provide individualised advice, ratings, target prices, valuations, or recommendations to buy or sell anything, and nothing here is an invitation or inducement to engage in investment activity. We are not authorised or regulated by any financial regulator. If you need advice about your own money, engage someone licensed to give it.