What Is Book Value?
Book value is a company's net asset value: total assets minus total liabilities. Learn how book value works and why it matters for value investors.
Definition
Book value is the net asset value of a company as recorded on its balance sheet: total assets minus total liabilities. Book value per share divides this number by the total shares outstanding. It represents the theoretical amount shareholders would receive if the company liquidated all assets and paid off all debts at their recorded values.
Tangible book value (TBV) is a stricter version that excludes intangible assets like goodwill, patents, and brand value. Since intangible assets can be difficult to sell in a liquidation, TBV provides a more conservative floor valuation. Banks and financial institutions often report tangible book value because regulators care about hard assets.
Book value and market value often differ significantly. A company's market value (share price x shares outstanding) can be far above book value if the market expects strong future earnings, or far below book value if the market expects losses or asset impairments. Benjamin Graham built his entire investment philosophy around finding stocks trading below book value.
Real-World Example
A company has $10 billion in assets (factories, equipment, cash, investments) and $6 billion in liabilities (loans, bonds, payables). Book value = $4 billion. With 400 million shares outstanding, book value per share = $10. If the stock trades at $15, investors are paying 1.5x book value -- a reasonable premium for a profitable business. If it trades at $7, the stock is below book value, which might be a bargain or might reflect real problems with the assets.
Why It Matters
Book value provides a floor estimate of what a company is worth. For asset-heavy businesses (banks, industrials, real estate), it is a critical valuation tool. For technology and service companies, book value is less relevant because their biggest assets (talent, software, brands) do not fully appear on the balance sheet. Comparing a stock's price to its book value (the P/B ratio) is one of the oldest and most reliable methods of identifying potentially undervalued investments.
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Frequently Asked Questions
Is book value the same as net worth?
For a company, yes -- book value equals shareholder equity, which is the corporate equivalent of net worth (assets minus liabilities). For individuals, net worth works the same way: what you own minus what you owe.
Why is book value different from market value?
Book value reflects historical cost minus depreciation. Market value reflects what investors are willing to pay based on future expectations. A company with strong growth prospects trades well above book value. A struggling company might trade below.
What is tangible book value?
Tangible book value excludes intangible assets (goodwill, patents, trademarks). It provides a more conservative estimate of what the company's hard assets are worth in a liquidation scenario.
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