Why Just 5 Numbers?
You don't need 40 ratios to get a reasonable read on a company. Five numbers, checked together, cover most of what matters for a retail investor's first-pass filter. The word "together" is doing real work here: each of the five can be made to look good on its own, and a company that looks good on all five at once is genuinely rare.
| Number | Plain question | Where it comes from |
|---|---|---|
| P/E | How much am I paying per ₹1 of profit? | Price ÷ earnings per share |
| ROE | How well do they use owners' money? | Net profit ÷ equity |
| D/E | How much is borrowed? | Total debt ÷ equity |
| Margins | How much of each sale is kept? | Profit ÷ revenue |
| Growth | Is the business getting bigger? | Revenue and profit, YoY |
1. P/E Ratio (Price-to-Earnings)
Price ÷ earnings per share. Tells you how much you're paying for ₹1 of current profit.