How to evaluate undervalued stocks

P/E compares price with earnings per share; P/B compares price with book value per share. Low multiples deserve investigation, not automatic purchase.

Six questions behind a low multiple

Interpret valuation in the context of the business and its competitors.

  1. How do P/E and P/B compare with similar companies in the same sector?
  2. Are earnings recurring or boosted by one-off gains?
  3. Are revenue, operating profit and EPS growing or falling?
  4. Do reported assets generate returns, and could they be impaired?
  5. How much debt and interest burden does the company carry?
  6. Is there a credible catalyst for better returns or shareholder distributions?

A practical screen

Try P/E of 15 or less and P/B of 1 or less, then compare ROE, cash flow and balance-sheet strength. A company can remain inexpensive for sound reasons, including structural decline.

Avoid value traps

Check deteriorating core earnings, weak cash flow, asset quality and excessive debt. Verify current data and original filings before deciding.

Market and financial data may be delayed. Verify original company filings and make your own investment decisions.

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Investment books and research resources

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新版 財務3表一体理解法

國貞克則

Learn how the income statement, balance sheet and cash flow statement connect. A Japanese-language accounting introduction published in 2021.

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東洋経済新報社

A Japanese company reference for comparing business profiles and financials. This link is for the autumn 2026 wide edition (B5), not the regular edition; check the edition and current company filings before purchase.

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Scroll sideways on small screens. The price in this advertisement is dated October 1, 2026; confirm the current price and edition at Rakuten Books. This is the wide edition, not the regular edition.

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