Kessan Tanshi
An AI assistant that ingests Japanese 決算短信 PDFs and gives retail investors a 60-second bilingual brief with surprise scoring in time for the 3:30 PM TSE close.
Japanese retail investors who trade individual stocks but don't have time to read full earnings PDFs
- One-tap PDF-to-summary for any TSE-listed company with key financial deltas highlighted
- Bilingual Japanese-English output with linked footnote explanations
- Surprise score versus prior-year results and trailing 5-year run-rate
- Watchlist alerts when a followed stock reports above its seasonal average
Japanese retail trading has surged with younger investors who want earnings hits without parsing dense yuho reports, especially during busy Q3 season like the BS11 release.
Clear demand signal — multiple AI summarization tools already target this audience, Yahoo!ファイナンス added AI tanshin summaries in Feb 2025, and NISA-driven retail growth is real; however the cited 'BS11' 200+ searches is a weak single-ticker proxy.【新機能】日本株の決算短信を生成AIで要約しました - Yahoo!ファイナンス ↗QuickIR - AI決算分析 ↗
Very crowded space — QuickIR, kabunew, SmartTD, 3分開示, IR Tracker, Note.com free bot, and Yahoo!ファイナンス all already do AI tanshin summarization, often with impact scoring and notifications, leaving little genuine whitespace.株ニュー | 適時開示・決算・企業ニュースをai要約してline通知 ↗3分開示 - 決算短信をAI要約アプリ - App Store ↗
Comparable tools price at ~980 yen/month (Qr1 Personal) and QuickIR uses token metering; thin ARPU against free alternatives from Yahoo and Note.com bots limits willingness to pay for a marginal feature like bilingual + surprise scoring.Qr1 Personalの評判は？利用者の本音から探るメリット・デメリット ↗日本株 企業決算ir要約（投資家向け） 全自動aiロボット - フリー版 ↗
TDnet/EDINET disclosure regime is stable and Japan's retail-investor base keeps growing, but the underlying LLM summarization capability is commoditizing rapidly, eroding defensibility over a multi-year horizon.決算情報 - 日本取引所グループ ↗QuickIR - AI決算分析 ↗
Technically easy — TDnet PDFs are public, parsing and bilingual summarization with existing LLMs is straightforward, and 3:30 PM timing is a soft constraint since filings land throughout the day; differentiation is the hard part, not the build.決算プロ 【 Bs11 （9414） 決算短信等適時開示一覧 】 ↗株ニュー | 適時開示・決算・企業ニュースをai要約してline通知 ↗