Macro / Opinions
Market structure, policy, technology cycles and the narratives shaping Japan and global equities.
Browse the collection Macro, policy, market structure and opinion piecesFor 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.
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.
Company Deep Dive
Business quality, earnings drivers, valuation, catalysts and risk — supported by explicit assumptions and financial models.
Browse the collection Company Deep DiveFeatured 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.
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
Published
Static homepage preview
¥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.
Contact
Questions, corrections or research ideas?
Get in touch for feedback, source corrections or suggestions for future deep dives.