Financial news assumes you know what these companies do. "Banking is under pressure, IT looks strong, FMCG is defensive" is a sentence that means nothing without knowing how each of those businesses actually earns money — and the drivers are genuinely different.
The major sectors, plainly
| Sector | How it makes money | Main driver | Watch this number |
|---|---|---|---|
| Banks | Borrow cheap, lend dearer, keep the spread | Interest rates, credit growth | NIM and GNPA |
| NBFCs | Same, without deposits — they borrow wholesale | Funding cost and availability | Cost of funds, asset quality |
| IT services | Sell engineering hours, largely billed in dollars | Client tech budgets, the rupee | Deal wins, attrition, margin |
| FMCG | Small everyday purchases, enormous volume | Rural demand, input costs | Volume growth, not just revenue |
| Pharma | Domestic branded or regulated-market generics | Approvals, pricing, regulators | US price erosion, plant status |
| Autos | Sell vehicles; ancillaries sell parts to them | Income cycles, fuel, financing | Monthly volumes, discounting |
| Cement | Heavy, local, capacity-driven commodity | Construction demand, capacity | Realisation per tonne, utilisation |
| Metals | Global commodity prices set the outcome | China, global demand | Spread over input cost |
| Energy / oil | Refining margins or marketing spreads | Crude, government pricing | GRM, subsidy receivables |
| Power / utilities | Regulated returns on assets | Regulation, tariffs, capex | Plant load factor |
| Real estate | Build and sell; sometimes rent | Rates, approvals, sentiment | Pre-sales, debt, inventory |
| Insurance | Premiums now, claims much later | Distribution, persistency | Embedded value, persistency |
Cyclical, defensive and structural
- Metals, cement, autos, real estate
- Earnings swing enormously with the economy
- Looks cheapest at the top of the cycle
- PE is actively misleading here
- FMCG, pharma, utilities
- People buy soap and medicine in every year
- Steadier earnings, usually higher multiples
- Underperforms in strong recoveries
Index weighting is not equal weighting. See how much of the index a handful of sectors actually represent.
Why sectors move together
Companies in a sector share drivers, so they move together — which is exactly why holding six banks is one position rather than six. Knowing what a sector responds to is also how you avoid accidental concentration.
- 1Interest rates
Help banks on margin; hurt NBFCs on funding cost, autos on financing and real estate on demand.
- 2The rupee
Helps IT and pharma exporters; hurts oil marketing, importers and anyone with dollar debt.
- 3Crude oil
Hurts paints, tyres, aviation and oil marketing; helps upstream producers.
- 4Monsoon and rural income
Drives FMCG volumes, two-wheelers, tractors and rural lending — a genuinely large part of the Indian market.
Why is a portfolio of "diversified Indian largecaps" often more concentrated than it looks?
Bank ka maal udhaar hai, IT ka maal ghante hain, cement ka maal bhaari aur local hai. Toh sabko ek hi PE se aankna galat hai. Bank mein NPA dekho, IT mein attrition, cement mein per tonne realisation. Pehle yeh samjho ki is dhandhe mein asal number kaunsa hai.
- Each sector has two or three numbers that matter, and they differ in every case.
- PE applied uniformly across sectors produces meaningless comparisons.
- Cyclicals look cheapest at the top of their cycle.
- Financials are around a third of the NIFTY — index exposure is heavily a rates bet.
- Write what a company earns from and what hurts it before buying anything.
Mark it done to track your progress through the curriculum.
Common questions
Short, direct answers to what people ask about this topic.
- what does defensive sector mean in the stock market
- A defensive sector is one whose demand barely changes with the economy — FMCG, pharma and utilities, where households buy soap, medicine and electricity in a bad year as well as a good one. Earnings are steadier, so these companies usually trade at higher multiples, fall less in a downturn, and lag in a strong recovery. The opposite category is cyclicals, whose profits swing with the economic cycle.
- sectors whose profits rise and fall sharply with the economic cycle are called
- Cyclicals — in India, mainly metals, cement, autos and real estate. Their earnings depend on construction, capital expenditure and consumer income cycles, so profit can multiply in a boom and largely disappear in a slowdown. The counterintuitive part is that a cyclical screens cheapest on PE exactly at the top of its cycle, when earnings are at a peak that will not last.
- which sector has the largest weight in the nifty 50
- Financials. Banks and other lenders together account for close to a third of the index, far more than any other sector, so broad Indian largecap exposure — including a plain index fund — is substantially exposure to lending and interest rates. Weights shift as prices move, and the current sector breakdown is published on the NSE and index provider websites.
- how does a weak rupee affect indian it companies
- A weaker rupee helps Indian IT services, because they bill clients largely in dollars while paying most of their costs in rupees, so each dollar of revenue converts into more rupees. The same currency move helps pharma exporters and hurts oil marketing companies, importers and anyone servicing dollar debt. It is one reason IT responds to the currency and to American client budgets rather than to conditions inside India.
- why is the pe ratio misleading for cyclical stocks
- Because a cyclical company earns its fattest profit at the top of the cycle, which makes the PE look lowest exactly when the earnings behind it are least sustainable — and look alarming at the bottom, when profit has collapsed. For metals, cement, autos and real estate the more informative references are the spread over input cost, capacity utilisation, volumes and price relative to book value. Applying one PE yardstick across every sector produces comparisons that mean nothing.