Japan Stock Alpha logo Japan Stock Alpha

For investors curious about Japan

Japan's stock market,
made simple.

New to Japanese equities? You're in the right place. We break down what's moving Japan's market — trading houses, AI, defense, policy — in language anyone can follow. No jargon, no fluff.

Company Deep Dive How this project works
Education first. Assumptions stay visible. Models are simplified representations and may be wrong. Every conclusion is author reviewed, but readers should verify the sources, challenge the assumptions and make their own decisions.

Articles

Two ways to explore the research.

The homepage stays deliberately simple. Start with a broad market view or go directly into a company-level deep dive.

Featured research

Kioxia: valuation, cycle risk and the path to a bull case.

A full company deep dive with bear, base and bull scenarios, a transparent valuation framework and a downloadable financial model.

Read the deep dive

Virtual Portfolio

A transparent test of the research.

The Japan Stock Alpha virtual portfolio tracks a hypothetical ¥10 million allocation across selected Japanese equities. It is designed to show how the research translates into portfolio construction over time.

Open the virtual portfolio
JSA Virtual Portfolio
Static homepage preview
Published
¥10M Starting capital
10 Japanese holdings
Jan 2025 Tracking start

Current values and methodology are shown on the portfolio page. No “Loading…” or empty placeholders appear on the homepage.

About

Research with a finance practitioner’s lens.

Japan Stock Alpha publishes independent equity research informed by approximately 15 years of experience across investment analysis, project finance, capital raising and financial modelling. Public information, explicit assumptions and human review sit at the centre of the process.

Primary-source led Company filings, earnings materials and public data first.
Model driven Valuation assumptions are visible rather than hidden.
Independent judgment AI may assist research and editing; conclusions are author reviewed.
Read the full methodology

Contact

Questions, corrections or research ideas?

Get in touch for feedback, source corrections or suggestions for future deep dives.

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Disclaimer: Japan Stock Alpha is an experimental project for educational and informational purposes only. Nothing on this site is investment advice, a recommendation to buy or sell any security, or an offer of any kind. Models are simplified, assumptions may be wrong, and past performance does not indicate future results. Verify the sources and do your own research.