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Market Basics

The macro numbers that actually move stocks

Repo rate, inflation, GDP, the rupee and the Budget — what each one does to share prices, and which ones you can safely ignore.

Market BasicsIntermediate12 min read
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Every stock lives inside an economy. You can analyse a company perfectly and still be wrong about the share price, because a decision taken in a room in Mumbai changed the discount rate the whole market applies to future earnings. Macro is not a separate subject from investing — it is the weather every company operates in.

Interest rates: the one that matters most

The repo rate is the rate at which the Reserve Bank of India lends to commercial banks. It is set by the Monetary Policy Committee roughly every two months, and it propagates into almost every price in the economy.

What happens when the RBI raises rates
  1. 1
    Borrowing gets more expensive

    Home loans, car loans and corporate borrowing all reprice upward. Demand for big-ticket purchases falls, which hits autos, real estate and consumer durables first.

  2. 2
    Indebted companies earn less

    Interest expense rises directly, so a leveraged infrastructure or telecom company sees profit fall without anything changing in its actual business.

  3. 3
    Fixed deposits become more attractive

    When an FD pays 8%, equity has to work harder to justify its risk. Money moves at the margin, and valuations compress across the board.

  4. 4
    Future earnings are discounted harder

    This is the subtle one and it hits hardest. A higher discount rate reduces the present value of distant cash flows — so companies whose value sits far in the future (high-growth, high-multiple names) fall much more than steady, cash-generating ones.

The other numbers, ranked by how much they should occupy you

NumberWhat it isWho it moves
CPI inflationConsumer price inflation, published monthly. The RBI targets 4% with a 2–6% band.Above the band, the RBI raises rates. FMCG and consumer companies also face input cost pressure they cannot always pass on.
Rupee vs dollarThe exchange rate.A weak rupee helps IT and pharma exporters (they earn in dollars) and hurts importers, airlines and anyone paying for crude in dollars.
Crude oilIndia imports the large majority of its oil.High crude widens the trade deficit, weakens the rupee and raises inflation. It hurts paints, tyres, airlines and logistics; it helps upstream producers like ONGC.
GDP growthThe size of the economy, published quarterly.Slow-moving and mostly already priced in. Useful as context, rarely as a trigger.
Fiscal deficitGovernment borrowing as a share of GDP.A wider deficit means more government borrowing, which pushes up bond yields and competes with private borrowers.
The Union BudgetAnnual, on 1 February.Moves specific sectors on tax and capital-expenditure announcements. Volatility around it is high and short-lived.
Think of it like this
The tide and the boats

A harbour full of boats. Some are well built, some are leaky. When the tide comes in, every boat rises — including the leaky ones, which is why everybody feels like a good sailor. When it goes out, the leaks become visible all at once.

In the market

Macro is the tide. It lifts and drops everything at once regardless of company quality, which is why a rising market makes poor businesses look fine and a falling one exposes them. Analysing the boat is still the job — but knowing which way the tide is running tells you how much of what you are seeing is actually the boat.

Which sectors move which way

◆ Recall practice

Match the macro move to the sector

Think it through before revealing each one.

◆ Your call

The RBI raises rates by 50 basis points

You hold a portfolio of three stocks: a debt-free IT exporter, a heavily leveraged infrastructure company, and a high-growth consumer company trading at 68× earnings. The RBI has just raised rates more than expected, and the rupee has weakened on the announcement. What should you expect?

Simple bhasha mein
Pyaaz mehnga hone ka asar

Pyaaz ₹80 ka ho gaya toh sirf sabzi mehngi nahi hoti — RBI interest rate badhata hai, home loan ki EMI badhti hai, log kam kharch karte hain, aur company ki sale girti hai. Isiliye inflation ka number aapke stock tak pahunchta hai — bas thoda ghoom ke aata hai.

What to remember
  • You do not need to forecast macro — you need to understand the transmission.
  • Interest rates matter most, and they hit high-multiple growth stocks hardest through the discount rate.
  • A weak rupee helps exporters and hurts importers; crude affects both inflation and the rupee.
  • Macro is the tide: it lifts and drops good and bad businesses alike.
  • Use macro to understand what you own, not to decide what to own.
You reached the endMark it done and keep your streak going.
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Common questions

Short, direct answers to what people ask about this topic.

repo rate meaning in stock market
The repo rate is the rate at which the Reserve Bank of India lends short-term money to commercial banks, and it is the anchor for almost every other interest rate in the economy. It is set by the Monetary Policy Committee at scheduled meetings roughly every two months. For equities it matters twice over — it changes what borrowers and savers pay and earn, and it changes the rate at which the market discounts a company’s future profits.
the rate at which the RBI lends to commercial banks is called the
The repo rate. Its mirror image is the reverse repo, the rate at which banks park surplus funds back with the RBI, and both are decided by the Monetary Policy Committee rather than set by the market. A rise in the repo rate feeds into home loans, corporate borrowing costs and fixed deposit rates within weeks.
why do high growth stocks fall more when interest rates rise
Because most of their value sits in profits expected many years out, and a higher discount rate reduces the present value of distant cash flows far more than near ones. A steady business earning today loses relatively little present value when rates rise; a company priced at 60 or 70 times earnings on the strength of future growth loses a great deal, even though nothing has changed in the business. That is why quality growth names can fall sharply through a rate-hiking cycle while their earnings keep rising.
what is the RBI inflation target
Under India’s flexible inflation targeting framework the RBI aims for 4% consumer price inflation, with a tolerance band running from 2% to 6%. CPI is published monthly, and sustained readings above the upper edge of that band are what usually push the Monetary Policy Committee towards raising rates. The target is notified by the central government in consultation with the RBI, not chosen by the central bank alone.
does a weak rupee help IT stocks
A weaker rupee generally helps Indian IT services and pharma exporters, because they bill customers in dollars while paying most of their costs in rupees, so the same dollar of revenue converts into more rupees of profit. The same move hurts importers, airlines and companies carrying dollar-denominated debt. It is one input among many and says nothing on its own about what any particular share is worth.