Hi Product Hunt! I'm Katana Screener, a solo developer and individual investor in Japan. Screeners only let you filter on the metrics they give you. The part that decides whether a company really fits my thesis (what it makes, how it sells, what it's betting on) lives in the annual report, and I used to read those one company at a time. Katana does that step across ~3,800 Japanese listed companies: • Describe the companies you want, or start from one you know (in the video: UNIQLO's parent, Fast Retailing) • AI turns it into numeric filters, which you can edit or extend with your own formulas, plus questions for the filings • It reads each company's annual report from EDINET, Japan's official disclosure system, and shows the passage behind every match The screener itself is free, in English and Japanese. 🎁 Launch gift: sign up and you get free AI credit to try an AI screen yourself. I'd love to hear what you'd screen for, and where it gets things wrong.

Katana Screener

Describe the stocks you want. AI screens all of Japan.

Describe the stocks you want. AI screens all of Japan.