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Price-to-Book Ratio (P/B Ratio)


The Price-to-Book Ratio (P/B Ratio) is a financial metric used to compare a company’s market value (price) to its book value (basically, its shareholders’ equity). It is calculated by dividing a company’s stock share price by its book value per share (BVPS). A low P/B ratio can indicate that a stock is undervalued, while a high P/B ratio may suggest overvaluation.


Price-to-Book Ratio (P/B Ratio) in phonetics is pronounced as: Prys-toh-Book Ray-shee-oh (P/B Ray-shee-oh)

Key Takeaways


  1. Definition: The Price-to-Book Ratio (P/B Ratio) is a financial metric used by investors to evaluate a company’s market value (stock price) relative to its book value (shareholders’ equity). It provides insights into what shareholders will receive in the event the company gets liquidated.
  2. Interpretation: A lower P/B Ratio could indicate that the stock is undervalued, providing a potential investment opportunity. However, it can also suggest that something is fundamentally wrong with the company. A higher P/B ratio, conversely, could mean the stock is overvalued, or the company has high growth prospects.
  3. Usefulness and Limitations: While the P/B Ratio is a useful tool that allows for easy comparison between companies in the same industry, it has its limitations. It’s less effective for service-based businesses or those with significant intangible assets (such as technology companies) because such businesses have less physical assets to be accounted for in the book value.



The Price-to-Book Ratio (P/B Ratio) is an essential financial metric that investors, financial analysts, and companies use to assess a firm’s market value and financial health. It determines the market’s valuation of the company against its intrinsic value by comparing its market price per share to its book value per share. The resulting figure indicates how much investors are willing to pay for each dollar of net assets. A high P/B Ratio typically suggests that the market has high expectations for a company’s future performance, while a low ratio may indicate that the market perceives the company as undervalued. Therefore, the P/B Ratio is a critical tool for identifying potential investment opportunities and assessing a company’s valuation.


The Price-to-Book (P/B) ratio is a financial metric widely used by investors and financial analysts to assess a company’s market value against its inherent, or book, value. This metric offers crucial insights into a company’s financial health and is beneficial in determining whether a company is undervalued or overvalued. It helps investors gain clarity on the real-world value of their investments and assists in quelling overenthusiasm that might skew a company’s perceived market value.The P/B ratio is a key tool in gauging the worth of a company’s equity relative to the value of its accumulated assets. This is particularly helpful in sectors like finance, where companies’ assets and liabilities directly impact their revenue and cash flow. Beyond this, the P/B ratio can also highlight potential discrepancies in a company’s balance sheet, making it an extremely useful tool for risk assessment. Therefore, it isn’t just the value of the company the P/B ratio uncovers, but also the desirability and security of any potential investment.


1. Microsoft Corp. (MSFT): Microsoft Corp, one of the top tech companies in the world, had a P/B Ratio of around 15.60 (as of November 2021). It means that its market price is 15.60 times its book value, which is seen as very high. 2. JPMorgan Chase & Co. (JPM): The leading banking corporation, JPMorgan Chase had a P/B ratio of around 1.8 (as of November 2021). This value is quite typical for banking or financial institutions. A low P/B ratio could mean that the stock is undervalued, but in JPMorgan’s case, it’s relatively normal since the finance sector typically have lower P/B ratios than other industries.3. Ford Motor Company (F): The automaker Ford had a P/B ratio of around 1.27 (as of November 2021). In the case of such industrial companies with significant tangible assets, lower P/B ratios can suggest the market has undervalued the company and its shares could be a potential bargain, assuming the company’s financial health is good.Remember that P/B Ratios are also sector-dependent. The ‘norm’ for P/B ratio can vary significantly depending on which industry or sector the company functions in, hence the comparisons should be made within the same industry.

Frequently Asked Questions(FAQ)

What is the Price-to-Book Ratio (P/B Ratio)?

Price-to-Book Ratio, also known as P/B Ratio, is a financial ratio used to compare a company’s market price to its book value. The P/B Ratio is calculated by dividing a company’s stock price per share by its book value per share (BVPS).

How is the P/B Ratio calculated?

The P/B Ratio is calculated by dividing the market price per share by the book value per share. The book value per share is calculated by subtracting a company’s liabilities from its assets and dividing by the total number of shares outstanding.

What does the P/B Ratio tell investors?

The P/B Ratio gives investors an idea of whether they’re paying too much for what would be left if the company went bankrupt immediately. A lower P/B ratio could mean the stock is undervalued while a higher P/B ratio might indicate overvaluation.

Is a lower or higher P/B Ratio better?

In general, a lower P/B Ratio could potentially indicate a more undervalued company and might be seen as a good investment opportunity. Conversely, a higher P/B Ratio might suggest an overvalued or more risky investment.

Can we rely solely on the P/B Ratio for investment decisions?

Like any financial ratio, the P/B Ratio should not be used in isolation. Factors such as the company’s overall financial health, market conditions, industry ratios, and other financial ratios should also be considered when making investment decisions.

Why could two companies in the same sector have different P/B Ratios?

Companies in the same sector can have different P/B Ratios due to factors like differences in financial performance, investor expectations, growth prospects and risk profile.

How can the P/B Ratio be used in comparing companies?

The P/B Ratio can be used to compare the market’s valuation of a company relative to its actual worth (its book value). By comparing P/B Ratios of different companies within the same industry, it can help investors find undervalued stocks.

Can the P/B Ratio be negative and what does it signify?

Yes, a P/B ratio can be negative. This happens when the book value of a company is negative, meaning its total liabilities exceed its total assets. This signals that the company may be facing serious financial distress, bankruptcy, or might be overleveraged.

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