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EPS tells you how much the company earns per share. Book Value tells you what it's worth on paper. Together, they reveal whether a stock is a bargain or a trap.
When you own a share, you own a small piece of the company. Two things should matter to you most: how much is the company earning on your behalf per share (EPS)? And if the company were to shut down today and sell everything, how much would your share be worth (Book Value)?
These aren't just academic numbers. EPS growth is the engine that drives long-term stock price appreciation. Price-to-Book (P/B) is one of the few valuation tools that works when earnings are distorted, volatile, or temporarily depressed — like during a recession or sector downturn.
Key idea: Benjamin Graham, the father of value investing and Warren Buffett's teacher, built his entire stock-picking framework around these two metrics. A stock trading below book value was, in his view, a potential bargain. A stock with consistent EPS growth was a potential compounder.
Formula: EPS = Profit After Tax (PAT) ÷ Total Shares Outstanding. Reported quarterly and annually — adjust for dilution from ESOPs, warrants, and convertibles when precise analysis is needed.
If Infosys earns ₹24,000 Cr PAT and has 400 Cr shares outstanding, EPS = ₹60. But the power of EPS analysis isn't in any single number — it's in the trend. A company growing EPS at 20% annually will, all else being equal, see its stock price follow that trajectory over time.
| Signal | What It Means |
|---|---|
| EPS growing 15%+ CAGR over 5 years | The gold standard — signals pricing power, expanding margins, or growing market share, or all three. These businesses almost always become multi-baggers over 7-10 year holding periods |
| EPS growing slowly (5-10%) | Acceptable for mature, stable businesses with high dividends (e.g. ITC, Coal India), but rarely creates exciting returns for a growth-oriented portfolio after inflation |
| EPS declining for 2+ consecutive years | Signals structural pressure, not a temporary blip. Need a clear, credible reason for recovery before buying — avoid "hope-based" investing |
| EPS erratic — bounces wildly each year | Often signals a cyclical business (steel, metals, chemicals) or earnings managed through one-time items. For cyclicals, look at average EPS over a full economic cycle instead of the current year |
| Type | What It Means |
|---|---|
| Basic EPS | PAT divided by current shares outstanding. Doesn't account for future dilution from ESOPs, convertible bonds, or warrants — can be optimistic for companies with heavy ESOP programs. Simpler, more commonly quoted |
| Diluted EPS | Assumes all outstanding ESOPs, warrants, and convertibles are exercised — the worst-case EPS, always lower than Basic EPS. For tech companies and startups with heavy ESOP grants (Zomato, Nykaa), the gap can be significant. Use this for conservative analysis |
Formula: Book Value Per Share = Shareholders' Equity ÷ Total Shares Outstanding, where Shareholders' Equity = Total Assets − Total Liabilities (from the balance sheet).
Book value is what the company is "worth on the books" — the net asset value after paying off all liabilities. If HDFC Bank has ₹3,00,000 Cr of shareholders' equity and 550 Cr shares outstanding, book value per share = ₹545.
On its own, book value tells you the accounting floor price. The Price-to-Book (P/B) ratio then tells you how many times the market is valuing the company above or below that floor: P/B = Market Price per Share ÷ Book Value per Share.
| P/B Range | What It Signals |
|---|---|
| Below 1x | Stock trading below asset value — market thinks assets are worth less than recorded, or the company is in distress. Can signal deep value OR a value trap |
| 1x-3x | Reasonable for most sectors — market pays a modest premium over book for earning power and brand. Common for banks, industrials, and mid-sized businesses |
| Above 10x | Market pays a huge premium over book, usually because of exceptional brand equity, intangibles, or earning power (Nestle, Page Industries) — only justified with high ROE |
P/B on its own can mislead. A low P/B doesn't automatically mean cheap, and a high P/B doesn't automatically mean expensive. The real test is combining P/B with ROE.
| Combination | Reading |
|---|---|
| Low P/B + High ROE | Potential hidden gem — the business generates excellent returns on equity but the market hasn't re-rated it yet. Benjamin Graham's sweet spot, worth deep-diving |
| Low P/B + Low ROE | Likely a value trap — cheap for a reason. Unless there's a credible turnaround story, this just means buying mediocre assets at a slight discount |
| High P/B + High ROE | Quality at a price — the market recognises the quality and prices it in. Think Nestle India, TCS, or Asian Paints. Still worth owning with a long horizon and a good entry |
| High P/B + Low ROE | Avoid — the worst combination. You're paying a premium for a business that earns poor returns on capital, with no margin of safety |
| Company | P/B | ROE | EPS CAGR (5yr) | Reading |
|---|---|---|---|---|
| Nestle India | 70x | 80%+ | 12% | Premium brand power — high P/B justified |
| TCS | 14x | 45% | 14% | Quality business at fair premium |
| HDFC Bank | 3x | 16% | 18% | Best-in-class bank — reasonable P/B for quality |
| Tata Steel | 1.2x | 12% | Cyclical | Asset-heavy cyclical — P/B near book is normal |
| SBI | 1.3x | 14% | 25% | PSU bank discount — watch NPA trend |
Illustrative figures. Always verify current data on Screener.in.
Watch out — share buybacks distort EPS and Book Value: When companies buy back their own shares, the share count falls, so EPS rises automatically even if profits are flat. Book value per share rises too. This can make a company look like it's growing faster than it really is — always check both EPS and absolute PAT (total profit) to distinguish genuine growth from financial engineering. TCS is famous for aggressive buybacks, and its EPS growth consistently outpaces absolute profit growth as a result.
Key Takeaway: Look for consistent EPS growth of 15%+ over 5 years — the clearest signal of a compounding business. For valuation, pair P/B with ROE: a high P/B is only justified by a high ROE. Use P/B especially for banks, NBFCs, and asset-heavy businesses where earnings can be lumpy; for asset-light businesses like IT and FMCG, P/B is less meaningful — stick to P/E and ROE. Together, EPS and Book Value give you the full picture of both earnings momentum and intrinsic worth.
Go to Screener.in and open the company's page, then click the P&L tab. Note the EPS for the current year and 5 years ago, and apply the CAGR formula: CAGR = (EPS_current ÷ EPS_5yrs_ago) ^ (1/5) − 1. Example: EPS grew from ₹20 to ₹40 in 5 years = (40/20)^0.2 − 1 = 14.9% CAGR. Screener.in also shows this in chart form under the "Charts" tab.
P/B is most useful for asset-heavy sectors — banks (HDFC Bank, SBI), NBFCs (Bajaj Finance), insurance, real estate, and steel or cement companies — where the asset base is large and well-documented. It's much less useful for asset-light companies like IT services (TCS, Infosys) or FMCG brands (Nestle, HUL), where true value lies in intangibles not captured in book value.
Yes — if the company reports a net loss (PAT is negative), EPS is also negative. A company with negative EPS can't be valued using the P/E ratio, so analysts use alternative metrics like Price-to-Sales (P/S), EV/EBITDA, or EV/Sales. This is common for early-stage growth companies like Zomato or Paytm in their initial listed years, which are valued on future revenue potential rather than current earnings.
Standalone EPS includes only the parent company's earnings, while consolidated EPS includes earnings of the parent plus all subsidiaries. For companies with significant subsidiary operations — Tata Motors with Jaguar Land Rover, Reliance with Jio and Retail — consolidated numbers give the complete picture. Always prefer consolidated for analysis unless the parent is the only meaningful entity.
Disclaimer: This article is for general educational purposes only and does not constitute personalized financial, investment, tax, or legal advice. Figures, rates, and rules mentioned may change over time — verify current details with an official source or a qualified professional before making financial decisions.
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