The P/E Ratio

2.1 — Twelve and a half years to get her money back

Remember the stranger who offered Meera ₹15 lakh for 20% of Sunrise Bakery? That values the whole bakery at ₹75 lakh. The bakery earns ₹6 lakh a year. Meera does the division: ₹75 lakh ÷ ₹6 lakh = 12.5.

She's just worked out, without knowing the name for it, a P/E ratio. It means: if the bakery keeps earning ₹6 lakh a year and hands every rupee straight to its owners, the stranger gets his money back in twelve and a half years.

For a company on the stock exchange, it's the same division, just done per share: the share price, divided by the profit earned per share over the last year. How many rupees you're paying today for one rupee of yearly profit.

2.2 — 20.31. Is that expensive?

You already know the answer from chapter 1: you can't tell from the number alone. It needs company. So here's Reliance sitting beside the other players in its own industry — Refineries & Marketing.

5.68 all the way to 23.67 — inside a single industry. So "just compare it to the sector" hasn't given you an answer. It's handed you seven different numbers instead of one, and now you have a new problem.

2.3 — Three of the seven vanish from the average — and nobody tells you

Look at the bottom three rows again. Indian Oil, Bharat Petroleum, Hindustan Petroleum — three of the country's biggest refiners — show a dash where the P/E should be. They lost money that period, and dividing a price by a loss produces a number that can't sit next to a healthy company's P/E. So it's left blank instead of faked.

Imagine someone tells Meera: "Bakeries around here typically sell for 15 times profit." What they haven't told her is that they only counted the bakeries that were actually profitable — the two that shut down last year, losing money right up to the end, never made it into that average at all. The number sounds authoritative. It's quietly built from survivors only.

2.4 — Cheap — or cheap for a reason?

Chennai Petroleum, at 5.68, looks like the bargain of the group — less than a third of Reliance's multiple. Before you get excited, check the column right next to it.

Chennai Petroleum earns 37.1% on its owners' money. Reliance earns 9.3%. So the "cheaper" one is also generating a far better return — which is the exact opposite of what "cheap" is supposed to mean when something's actually a bargain.

That combination should make you curious, not excited. Refining profits swing hard with oil prices — a refiner's earnings can double one year and vanish the next. A very low P/E on a business like that often means the market expects this year's fat profit not to repeat. The ratio looks low because the number underneath it is temporarily high.

Meera has the same problem in miniature. Her ₹6 lakh profit included one unusually large wedding order that might not repeat. If next year brings in ₹4 lakh instead, the stranger's ₹75 lakh offer isn't really 12.5 times earnings — it's closer to 19. The multiple depends entirely on whose profit figure you trust.

2.5 — What a high P/E is actually saying

Run the same logic the other way. A high P/E means people are willing to pay a lot for one rupee of TODAY's profit — and they usually only do that when they expect tomorrow's profit to be bigger.

• ▹**A low P/E pays off if the earnings hold up.** The risk is that they were a one-off peak.
• ▹**A high P/E pays off if the growth actually shows up.** The risk is paying for a future that doesn't arrive.
• ▹**No P/E at all** just means the company lost money. Not cheap, not dear — the measure simply doesn't apply.

None of that tells you what to buy — this course never will. What the ratio does is make the bet you're taking visible. That's already more than most numbers manage.

2.6 — Where this sits on EquityTale

Every company page shows the P/E with its basis labelled, right next to the peer group above — dashes where the number would lie rather than mislead.

The Health Score's Valuation pillar reads P/E and price-to-book against sector peers, plus margin of safety against our own models. Reliance scores 55.1 out of 100 on it: a percentile, not a multiple — meaning it looks better value than about 55% of the companies the pillar measured it against. Unremarkable in either direction, which a single ratio would never have told you.

One loose end before we move on. Chennai Petroleum beat Reliance on P/E and crushed it on return on equity — so is it simply the better deal on every measure? It isn't, and the reason connects the two numbers in a way worth actually seeing. That's chapter 3.