Source: Reproduces the metric from Tatsuo Kiyohara, My Investment Method (2024)
The core metric from "My Investment Method" (2024), an unusual bestseller for an investing book in Japan. Net cash = current assets + investment securities x 70% - total liabilities (valuing investment securities at 70% to account for tax, the distinctive part of this definition). A ratio of 1.0+ means "you'd get change back after buying the whole company." Also reproduces the author's operating criteria of market cap under ¥50bn and PER under 10x. The definition differs from this tool's default net cash ratio, so it's worth comparing which names each one surfaces.
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Data comes from annual securities reports disclosed on EDINET (Japan FSA), via EDINET DB. Price-related values are as of each company's fiscal year-end (back-calculated from the disclosed trailing PER), not live quotes. Coverage: all TSE-listed companies, with names added progressively.
Kiyohara-style net cash divided by market cap. 1.0+ is considered the level at which "you'd get change back after buying the whole company." (Source: Tatsuo Kiyohara, My Investment Method (2024))
Back-calculated from EDINET's own disclosed trailing PER x net income (per x net_income; since eps = net_income / shares, the shares term cancels out), without relying on external price data such as yfinance. This keeps tabs ① and ② self-contained within EDINET data and licensing-clean (validated 2026-07-10, median error of 0.6% vs. the most recent actual close). Note this is the value as of fiscal year-end, not the current market price. (Source: This tool's core design)