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How much are you paying for each rupee the company earns?

Price-to-Earnings Ratio (P/E)

Lesson 9 of 11 · Price

P/E is the share price divided by the profit each share earned in a year (EPS).

In everyday life

A shop earns ₹1 lakh a year and is for sale at ₹20 lakh. Its P/E is 20: at today's profit, it would take 20 years to earn back what you paid.

How it's worked out

Example: Sunrise Tea, a made-up company that sells packaged tea across India.

Share price
what one share costs on the stock market today
₹300
Earnings per share
net profit split equally across all shares
₹15
P/E
20x

In words: You pay ₹20 for every ₹1 the share earns in a year.

Try it yourself

Move the sliders and watch the answer, the picture and the verdict change together.

₹
₹0₹1000
₹
₹0.5₹50
P/EMiddle
20x

You pay ₹20 for every ₹1 the share earns in a year.

Rough guide

P/E 20x
  • Looks cheap
  • Middle
  • Looks pricey

What's a good number?

  • Looks cheap

    Up to 15x

  • Middle

    15x to 30x

  • Looks pricey

    Above 30x

Compare with the same company's past and with its sector: consumer and IT firms often trade at 25–50x, banks at 10–20x. A low P/E can mean a bargain, or that investors expect trouble.

Key number in the sector guides for IT services, Pharma and FMCG.

How to read it

Good signs

  • P/E below the company's own 5-year average while profits keep growing.
  • A high P/E backed by fast, steady profit growth.

Watch out for

  • P/E uses past profit. If profit is about to fall, a low P/E is a trap.
  • A loss-making company has no meaningful P/E.
All lessons

For learning only. Example companies are made up, and the rough guides are rules of thumb, not targets. Nothing here is advice to buy or sell any stock.