PRICE‑TO‑BOOK RATIO
Back to GlossaryDefinition
Market price per share divided by book value per share; compares market value to net assets.
Summary
The Price-to-Book (P/B) ratio is a valuation metric that compares a company's market value to its accounting book value. It's calculated by dividing the current stock price by the book value per share (which is total shareholders' equity divided by outstanding shares). A P/B ratio below 1.0 suggests the stock may be undervalued, as investors are paying less than the company's net asset value. However, this ratio works best for asset-heavy companies and may be less meaningful for service or technology companies with few tangible assets.
Usage Context
Essential when learning about fundamental analysis, value investing strategies, financial statement analysis, and comparing companies within asset-heavy industries like banking, manufacturing, or real estate
Common Confusions
- Thinking that a P/B ratio below 1 always indicates a good investment opportunity
- Confusing book value with market value
- Assuming P/B ratios are equally useful across all industries
- Not understanding that book value uses historical costs, not current market values
- Thinking that higher P/B ratios are always bad