Price-to-Book Ratio (P/B) — Smart Financial Analysis
Evaluate a company's market value relative to its book value. P/B = Stock Price ÷ Book Value Per Share.
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P/B ratio compares a stock's market price to its book value (net assets). P/B < 1.0 may indicate undervaluation or financial trouble. Companies with significant intangible assets (brand, IP, technology) trade well above book value. Banks hold mostly financial assets close to market value, making book value more meaningful.
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Why: P/B ratio compares a stock's market price to its book value (net assets). P/B = Stock Price / (Total Assets - Liabilities) / Shares. A P/B of 1.0 means the stock is priced ...
How: Enter Stock Price ($), Total Assets ($), Total Liabilities ($) to get instant results. Try the preset examples to see how different scenarios affect the outcome, then adjust to match your situation.
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📋 Quick Examples — Click to Load
📊 Your P/B vs Industry Avg
P/B ratio comparison
🍩 Book Value Composition
Total Assets vs Total Liabilities
📊 P/B by Sector
Typical P/B ratios by industry
📈 P/B Sensitivity
P/B at different stock prices
For educational purposes only — not financial advice. Consult a qualified advisor before making decisions.
💡 Money Facts
Price-to-Book Ratio (P/B) analysis is used by millions of people worldwide to make better financial decisions.
— Industry Data
Financial literacy can increase household wealth by up to 25% over a lifetime.
— NBER Research
The average American makes 35,000 financial decisions per year—many can be optimized with calculators.
— Cornell University
Globally, only 33% of adults are financially literate, making tools like this essential.
— S&P Global
The price-to-book ratio is one of the oldest and most fundamental valuation metrics, favored by value investors since Benjamin Graham's era. The S&P 500 average P/B is approximately 4.2x, but this varies enormously by sector. For asset-heavy industries like banking, P/B remains the primary valuation tool. Warren Buffett has noted that buying below book value provides a margin of safety.
Sources: S&P Global, Bloomberg, Morningstar, The Intelligent Investor (Benjamin Graham).
Key Takeaways
- • P/B = Stock Price ÷ Book Value Per Share; Book Value Per Share = (Total Assets - Liabilities) ÷ Shares Outstanding
- • P/B < 1.0 suggests potential undervaluation or financial distress; always investigate further
- • Banks and asset-heavy firms use P/B as the primary valuation metric; tech firms often trade at 5-15x+ P/B
- • Benjamin Graham sought P/B < 1.5 for value stocks; Warren Buffett uses book value as a margin of safety
Did You Know?
How Does the P/B Ratio Work?
Book Value Per Share
Book value = Total Assets - Total Liabilities. Divide by shares outstanding to get BVPS. This represents the accounting value of equity per share.
Market vs. Book
P/B compares what the market pays (stock price) to what accountants value (book value). A P/B of 2.0 means investors pay $2 for every $1 of book value.
Sector Context
Banks: 0.8-1.5x. Tech: 5-15x+. Industrials: 2-4x. Always compare within the same industry; cross-sector P/B comparisons are misleading.
Expert Tips
P/B by Sector (Typical Ranges)
| Sector | Typical P/B | Notes |
|---|---|---|
| Banks | 0.8-1.5 | Primary valuation metric |
| Tech | 5-15+ | Intangibles dominate |
| Industrial | 2-4 | Asset-heavy |
| Healthcare | 3-5 | IP and R&D |
| Utility | 1.2-2 | Regulated, stable |
Frequently Asked Questions
What is the price-to-book ratio?
P/B ratio compares a stock's market price to its book value (net assets). P/B = Stock Price / (Total Assets - Liabilities) / Shares. A P/B of 1.0 means the stock is priced at its net asset value.
What is a good P/B ratio?
P/B < 1.0 may indicate undervaluation or financial trouble. Banks: 0.8-1.5. Tech: 5-15+. Industrial: 2-4. Value investors like Benjamin Graham sought P/B < 1.5.
Why do some companies have very high P/B ratios?
Companies with significant intangible assets (brand, IP, technology) trade well above book value. Apple's P/B exceeds 40x because its brand and ecosystem aren't fully reflected on the balance sheet.
How is P/B useful for bank stocks?
Banks hold mostly financial assets close to market value, making book value more meaningful. P/B is the primary valuation metric for banks. P/B < 1.0 for banks signals market distrust.
What is tangible book value?
Book value minus intangible assets (goodwill, patents). Tangible P/B is more conservative and useful for companies with large acquisitions that created goodwill on the balance sheet.
How does P/B relate to ROE?
P/B = ROE × P/E. Companies with higher ROE deserve higher P/B ratios. A company earning 20% ROE should trade at a higher P/B than one earning 5% ROE.
Key Statistics
Official Data Sources
⚠️ Disclaimer: This calculator is for educational purposes only. P/B ratio is one of many valuation metrics and should not be used in isolation. Past performance does not guarantee future results. Not financial advice. Consult a qualified advisor before making investment decisions.
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