Price to Book (P/B) Ratio Explained with Indian Examples (2026)

The price to book (P/B) ratio is one of the simplest valuation tools in fundamental analysis — yet it quietly separates undervalued gems from value traps in the Indian stock market. In this guide, you will learn what the P/B ratio actually measures, how to read it across sectors like banks, IT, and FMCG, and the five red flags that signal a P/B is misleading. For official filings of listed companies, see disclosures on the BSE and NSE websites, or browse our other valuation guides.

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

The price to book (P/B) ratio compares a company’s market price per share to its book value per share. Book value is the net worth of the business as recorded on the balance sheet — total assets minus total liabilities, divided by the number of shares outstanding. A P/B of 2 means the market is willing to pay twice what the accountants say the business is worth on paper.

The price to book ratio matters because it answers a deceptively simple question: am I paying more for this business than its assets are worth? It is most useful for banks, NBFCs, and asset-heavy manufacturers — industries where the balance sheet genuinely reflects the productive capacity of the business. For IT services, consumer brands, and other asset-light sectors, P/B can be misleading because most of the real value sits in intangible assets that the accountants never recorded.

5 Things to Look For When Using the P/B Ratio

Use this five-point checklist every time you screen a stock with the price to book ratio:

1. Sector context. Compare P/B only within the same industry. A P/B of 1.5 is cheap for a private bank but expensive for a steel company. Use sector medians as your benchmark, not market averages.
2. P/B alongside ROE. A low P/B with low ROE is usually a value trap. A low P/B with high ROE (above 15%) is the classic Indian “quality at a discount” setup.
3. Goodwill and intangibles. Strip these out before calculating P/B for a more honest number. Inflated goodwill from past acquisitions can flatter book value.
4. Trend over 5 years. A P/B that has compressed steadily despite rising book value can signal market doubt. A P/B re-rating upward usually follows improving ROE or earnings momentum.
5. One-off write-downs. Asset impairments, deferred tax adjustments, and forex losses can distort book value in a single year. Always normalise before drawing conclusions.

Run these five checks and the price to book ratio becomes a sharp tool for finding undervalued Indian businesses without falling into value traps.

Price to Book (P/B) Ratio: Frequently Asked Questions

What is a P/B (price-to-book) ratio?

P/B is the share price divided by book value per share. Book value is net assets (what the company owns minus what it owes). A P/B of 2 means you are paying twice the accounting net worth. For asset-heavy businesses like banks, this ratio is more meaningful than P/E.

When should I use P/B instead of P/E?

Use P/B for banks, NBFCs, real estate, and cyclical companies at earnings troughs. Use it when earnings are volatile or negative but the balance sheet is stable and meaningful.

What is a good P/B for an Indian bank?

Top private banks (HDFC Bank, Kotak, ICICI) have historically traded at 3–4x book value because of high ROE and growth. Mid-tier private banks trade at 1.5–2.5x. PSU banks trade below 1x because of asset quality and governance concerns.

Can P/B be negative?

Yes, if a company has accumulated losses exceeding its capital, book value per share can be negative. A negative P/B is a serious red flag — the business has destroyed shareholder equity and is borrowing on thin or no capital base.

Why do software companies have high P/B?

Because their main assets — code, brands, customer relationships — are not on the balance sheet. Accounting undercounts their real net worth. For IT and consumer brands, P/B is nearly useless; use P/E or DCF instead.