What Is P/B Ratio? P/B Ratio Meaning
What is P/B ratio? The P/B ratio (price-to-book, or P/B) compares a company's stock price to its book value per share. It answers: How much do investors pay for each dollar of the company's net assets (shareholders' equity)?
P/B ratio meaning: Book value is shareholders' equity—total assets minus total liabilities. The P/B ratio shows whether the stock trades at a premium or discount to that accounting value. A P/B of 1.0 means the stock trades at book value. Below 1 is a discount to book (or market skepticism about asset quality). Above 1 means a premium—investors pay more than book, often for intangibles or future earnings. Those are calculated gaps, not a cheap or expensive conclusion.
P/B Ratio Formula
The P/B ratio formula is:
P/B = Stock Price ÷ Book Value Per Share
Or: P/B = Market Cap ÷ Shareholder Equity. Book value per share = Shareholder Equity ÷ Shares Outstanding.
Example: Stock price $60, book value per share $40 → P/B = $60 ÷ $40 = 1.5. The stock trades at 1.5 times book value.
What Does PB Tell You?
What does PB tell you? P/B tells you how the market values the company relative to its balance-sheet equity. It reflects the premium or discount to accounting book value.
A low P/B may mean a lower multiple versus book assets—or that the business earns low returns on equity. A high P/B may reflect strong earnings power, growth expectations, or valuable intangibles (brands, patents) not fully captured in book value. P/B is especially useful for banks, insurers, and other asset-heavy businesses where book value is a meaningful anchor. It is less useful for asset-light companies (e.g., software) where most value is intangible.
How Is P/B Typically Compared?
How is P/B typically compared? Observed ranges vary by industry. Tickerplace does not rate P/B as cheap or expensive.
- Below 1.0: The stock trades below book—a lower multiple versus assets, or the market doubts asset quality.
- 1.0–3.0: Common range for many mature companies. A P/B of 1.5 is moderate.
- Above 3.0: Often growth or quality premiums. Requires strong ROE or growth to justify.
Compare to sector peers. Banks often trade near 1x book. Tech and consumer brands may trade at 5–10x or higher. Pair P/B with ROE, growth, and industry norms rather than treating one reading as good or bad.
What Does a 1.5 PB Ratio Mean?
What does a 1.5 PB ratio mean? A P/B of 1.5 means the stock trades at 1.5 times its book value per share. Investors pay $1.50 for every $1 of shareholders' equity.
A 1.5 P/B indicates a moderate premium to book. The market values the company above its net assets—often because of earnings power, growth, or intangibles. For many mature, profitable companies, 1.5x is a reasonable multiple. Compare to the sector average: if peers trade at 2x, 1.5x is a lower multiple; if peers are at 1x, 1.5x is a higher multiple. Neither is a cheap/expensive conclusion.
How Do Higher and Lower P/B Readings Compare?
How do higher and lower P/B readings compare? Neither is better as a Tickerplace conclusion; it depends on context.
Lower P/B is typically preferred by value screens. P/B below 1 means you pay less than the accounting value of net assets. But a low P/B may also reflect poor profitability (low ROE) or assets that are overstated or hard to liquidate.
Higher P/B is often acceptable for growth companies with strong returns on equity. A company earning 20% ROE can justify a higher P/B than one earning 5%. The key is ROE: a lower P/B with high ROE is a different combination than a high P/B with low ROE. Those combinations are comparisons, not buy or sell calls.
P/B Ratio and ROE
P/B and ROE (return on equity) are related. A company with high ROE can justify a higher P/B—the market pays for earnings power. A low P/B with high ROE is a different combination than a high P/B with low ROE. Those are calculated pairings, not a recommendation. The relationship P/B ≈ ROE × P/E (simplified) shows how these metrics connect. Use both when evaluating stocks.
Limitations of P/B
Book value is based on historical cost; it may not reflect true market value of assets. Intangibles (brands, goodwill) can distort book value. Service and tech companies often have modest book value but high market caps—P/B is less meaningful. Negative book value (e.g., after heavy losses) makes P/B uninterpretable. Use P/B alongside P/E, ROE, and other metrics.
P/B Ratio Example
Company A: Stock $80, book value per share $100 → P/B = 0.8. Trades below book. Company B: Stock $120, book value $40 → P/B = 3.0. Trades at 3x book. Company A may appeal to value investors if ROE is respectable. Company B needs strong ROE or growth to justify the premium. Compare both to sector averages.
Frequently Asked Questions
What is P/B ratio?
The P/B ratio (price-to-book) compares a company's stock price to its book value per share. It shows how much investors pay for each dollar of net assets. P/B = Stock Price ÷ Book Value Per Share (or Market Cap ÷ Shareholder Equity). The P/B ratio meaning: a ratio of 1 means the stock trades at book value; below 1 means a discount to book; above 1 means a premium to book. Those are calculated gaps versus accounting equity, not a cheap/expensive conclusion.
What does P/B ratio mean?
P/B ratio meaning: it tells you the multiple of book value (shareholders' equity per share) that the market is willing to pay. A P/B of 2 means investors pay $2 for every $1 of book value. A P/B below 1 means the stock trades at less than accounting book value—either a lower multiple versus assets, or the market doubts those assets. P/B reflects the premium or discount to accounting book value.
What does PB tell you?
PB tells you how the market values a company relative to its balance-sheet equity. Low P/B may reflect a lower multiple versus book assets, or that the business has low returns on equity. High P/B may reflect growth expectations, intangibles (brands, patents), or a higher multiple versus book. PB is especially useful for asset-heavy companies (banks, industrials) where book value is meaningful. It is less useful for asset-light or high-growth companies.
How is P/B typically compared?
There is no P/B that Tickerplace rates as good. Observed ranges vary by industry. Many value screens use P/B below 1.0. For many sectors, P/B of 1–3 is common. Growth companies may trade at 5–10x or higher. Banks and financials often trade near 1x book. Compare to sector peers and to ROE, growth, and asset quality—those comparisons are not a recommendation.
What does a 1.5 PB ratio mean?
A 1.5 P/B ratio means the stock trades at 1.5 times its book value per share. Investors pay $1.50 for every $1 of shareholders' equity. It suggests a moderate premium to book—the market values the company above its net assets, often due to earnings power, growth, or intangibles. For many mature companies, 1.5x sits in a common range. Compare to sector averages to see whether the multiple is higher or lower—not whether the stock is cheap or expensive.
How do higher and lower P/B readings compare?
A lower P/B means price is closer to (or below) book value; a higher P/B means a larger premium to book. Neither is better as a Tickerplace conclusion. P/B below 1 can coincide with low multiples or with doubts about asset quality. P/B above 3 often coincides with high ROE or growth expectations. Compare to peers and to ROE.