How does the stock market actually work? (not tips, I just want to understand)
Rohan Sharma11th Sample
23 Aug 2026 · 2 min read
ok so my cousin keeps saying "bhai market gir gaya" at dinner and everyone at the table goes quiet like someone died. I nodded along like I understood. I did not understand.
I'm not asking which stock to buy. I'm not going to buy anything, I'm in class 11 with ₹40 in my wallet. I just want to understand how the thing works, like I would understand how a petrol pump works.
Here is what I think I know, and please correct me:
- A company sells tiny pieces of itself called shares.
- If you buy a share, you own a small part of that company.
- The price goes up and down because... people want it more or less? But who decides the number exactly?
- There's something called Sensex and Nifty and when they "fall" everyone panics. Is that the whole market? Is it one big stock?
What I really don't get:
- When I buy a share of a company, does the company get my money? Or someone else?
- Where is the "market" physically? Is it a building with people shouting like in movies?
- Why does the price move even when the company didn't do anything that day?
Please explain like I'm a teenager with a short attention span (because I am). Memes optional but appreciated.
11 answers & replies
Sign in to join the conversation.
[+][–]Dev Agarwal12thSample· 1mo ago
Okay, this is a good set of questions. I'll go one by one.
1. Does the company get your money? Depends on which "market". There are two:
- Primary market: the company sells new shares for the first time (an IPO, or a later fresh issue). Money goes to the company. That's how it raises money to build factories etc.
- Secondary market: after that, shares just get traded between investors. When you buy a share on the exchange, you're buying it from another investor who is selling, not from the company. Your money goes to that seller, and the company gets nothing from that trade.
Most of what you see on TV is the secondary market.
2. Where is it? It's a computer system now, not a shouting hall. In India there are two big exchanges, NSE and BSE. Brokers connect you to them through apps, and orders get matched by software in a fraction of a second. The shouting-pit thing is old.
3. Who decides the price? Nobody "decides". If lots of people want to buy at ₹100 and few want to sell, the last trade price moves up, to maybe ₹101. If lots want to sell and few want to buy, it drops. It's like an auction, running all day, with millions of small orders.
[+][–]Rohan Sharma11thSample· 1mo agoAuthor
ohhh so the company only gets money in the first sale and after that it's like people trading Pokémon cards among themselves
[+][–]Dev Agarwal12thSample· 1mo ago
lol yes, close enough. The company still cares about its share price, but not because it gets cash each trade.
[+][–]Harsh Gupta12thSample· 1mo ago
I'm answering this because "market gir gaya" at the dinner table is the most terrifying sentence in Indian households 😂
My understanding: Sensex and Nifty are not one big stock, they're like a report card for a group of companies. Sensex tracks 30 big companies listed on BSE, Nifty 50 tracks 50 big companies on NSE. If most of those go down that day, the index goes down. So when your cousin says "market fell", he means "that list of big companies, on average, fell today."
[+][–]Meera Patel11thSample· 1mo ago
Small correction to the sentence "on average": indices are weighted, so bigger companies (by market value) move the index more than smaller ones. It's not a simple average. Other than that, correct.
[+][–]Harsh Gupta12thSample· 1mo ago
true true, weighted. I'll take the L and the correction 😅
[+][–]Arjun Nair12thSample· 1mo ago
For question 3 (why does the price move when nothing happened): prices move on expectations about the future, not just what happened today. News about the economy, interest rates, a competitor's result, even a rumour, can change how much people think the company will earn later. So the price today = what buyers and sellers collectively think the future is worth.
Slight maths view: a company's value is roughly all its future profits adjusted for time. If people's guess about those future profits changes, the number changes, even when the company itself did nothing that day.
I'd also say, since you mentioned panic: prices going down doesn't mean the company stopped working. It means opinions changed, sometimes sensibly, sometimes in a rush.
[+][–]Vivek Mishra12thSample· 1mo ago
Simple English version for others: when many people want to buy, price goes up. When many want to sell, price goes down. That is all the "market" is. Nothing magic.
[+][–]Rohan Sharma11thSample· 1mo agoAuthor
ok this is the first time any of this made sense. follow up: do I need a lot of money to start? or is that a stupid question
[+][–]Dev Agarwal12thSample· 1mo ago
Not stupid. You can buy a single share of many companies, so the amount can be small. But here's the thing for you: under 18, you can't open the account yourself. A parent/guardian has to hold or operate it on your behalf. So for now, the best use of time is learning how it works, like you're doing. Read about how companies report results, what a dividend is, what diversification means. No buying needed.
Also, I'll say it plainly because it matters: nobody can tell you for sure where a price goes next. Anyone saying "guaranteed" is selling something.
[+][–]Diya Menon11thSample· 1mo ago
ahh this thread is gold, saving it. also rohan, "like a petrol pump" is the best way to ask a question 😂
