Investment journal app for long-term stock investors

Your broker records what you bought. Giroku records the reason, support, risks, and review plan behind each position.

Who this is for

What you track

Example workflow

Start with one ticker

Write the reason you care, the source that convinced you, and what would change your mind.

Attach support

Save sources and notes beside the reason instead of scattering them across tools.

Review what changed

Return after earnings, news, valuation changes, or a scheduled review.

What makes an investment journal different

Most search results for investment journal app mix long-term investing, trading journals, portfolio trackers, and generic note apps. Giroku is built for the long-term investor who needs the reason trail, not another execution dashboard.

Reason before result

Record what you believed before price movement and headlines make the outcome feel obvious.

Ticker-level memory

Keep Research notes, Saved sources, Decisions, trades, Review notes, and targets to review attached to the ticker they explain.

Review loop

Use the journal to return after earnings, valuation changes, or new information and compare facts against the original case.

How Giroku helps

Common questions

Is Giroku an investment journal app or a trading journal?

Giroku is an investment journal app for long-term stock research. It can record trades, but its main job is preserving the reason, support, decisions, and later reviews behind a position.

Do I need to connect a broker to use Giroku?

No. Giroku is private by default and does not require broker sync or order execution. You can start with a ticker, a reason, and a review note.

What should I write first?

Start with why the stock matters, the source or evidence that supports the reason, what would change your mind, and when you should review it again.