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.

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.

Latest research

Two deep dives on the AI build-out.

One on the power that AI infrastructure needs, one on the memory it runs on — both written around explicit assumptions and a stated price anchor.

Company Deep Dive

New

Bloom Energy: the best way to play AI power scarcity, or a stock already pricing it in?

Data-center demand is real and the grid is slow, so Time-to-Power has value. The harder question is how much of that value Bloom keeps once gas engines and turbines scale into 2028–30.

Company Deep Dive

Valuation

Micron: even after modeling a real downcycle, I still get $1,300–$1,470.

The real debate is not peak FY27 earnings but how deep the next memory trough goes. A DCF and cycle-average P/E view built on an explicit 60% FY30 gross-margin trough — an implied 38–56% upside against a $941 price anchor.

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.