What is the P/E Ratio?
The Price-to-Earnings (P/E) ratio is the most widely used stock valuation metric. It tells you how much investors are willing to pay for every ₹1 of a company's earnings.
P/E = Market Price per Share / Earnings per Share (EPS)
Example: A stock trading at ₹500 with an EPS of ₹25 has a P/E of 20. This means investors are paying ₹20 for every ₹1 of earnings.
Trailing vs Forward P/E
- Trailing P/E (TTM): Uses actual earnings from the last 12 months. More reliable but backward-looking.
- Forward P/E: Uses analyst estimates of next year's earnings. More relevant for high-growth companies but based on projections that can be wrong.
What is a "Good" P/E for Indian Stocks?
There is no universal "good" P/E — it varies significantly by sector, growth rate, and market cycle. As of early 2026, benchmark P/E levels in India:
- Nifty 50: Typically trades at 20–25x trailing P/E
- Banking stocks: 10–15x is common (lower due to credit risk)
- FMCG / Consumer goods: 40–60x (premium for predictable earnings)
- IT services (TCS, Infosys): 25–35x (quality premium)
- PSU stocks: 5–12x (discount for governance risk)
P/E in IPO Valuation
For IPOs, the DRHP typically includes a peer comparison table showing P/E ratios of listed competitors. Compare the IPO's asking P/E to its peers. An IPO pricing at a significant premium to established peers needs to justify the premium with superior growth, margins, or market position.
Be cautious of IPOs where the company was loss-making or had one-time gains inflating EPS — this makes the P/E appear artificially low.
Limitations of P/E
- Doesn't account for debt: A highly leveraged company can show a deceptively low P/E. Use EV/EBITDA (Enterprise Value to EBITDA) for debt-heavy sectors.
- Useless for loss-making companies: Startups, new-age tech companies, and pre-profit IPOs cannot be valued by P/E. Use Price-to-Sales (P/S) or EV/Revenue instead.
- Cyclical companies need sector adjustment: For commodity, metals, and real estate companies, earnings fluctuate wildly with cycles — P/E should be compared over a full cycle, not just peak earnings.
- Manipulation via one-time items: Accounting adjustments, asset sales, or deferred tax reversals can inflate EPS in a single quarter, deflating P/E artificially.
PEG Ratio — P/E Adjusted for Growth
The PEG ratio = P/E / Expected EPS growth rate. A PEG below 1 is generally considered undervalued relative to growth. For example, a stock at P/E 30 with 35% expected EPS growth has a PEG of 0.86 — potentially attractive. PEG is more useful than raw P/E for high-growth sectors like technology and specialty chemicals.