What are Stocks and Shares, You're Buying a Piece of a Business
In the last two lessons you learned that the stock market is a marketplace for tiny pieces of businesses, and that the Nifty and Sensex are just measuring sticks for that market. This lesson zooms into one specific thing. What is a share, really, and what happens to your money once you own one?
The honest answer is that most people who buy shares never stop to ask this. They watch the screen, see a number go up or down, feel happy or stressed, and treat it like a casino chip. That mental model loses people money. Let's replace it.
A share is a fraction of a real business
HDFC Bank is a real company. In financial year 2024, it earned around ₹64,000 crore in net profit. It has about 760 crore shares outstanding.
Divide one by the other. Each share carries roughly ₹84 of annual profit. This is called earnings per share (EPS), and we will dig into it in Level 3. The point for now is simpler. If you own one share, you own one tiny slice of that ₹64,000 crore profit pool, worth about ₹84 a year.
The two ways you actually make money from a share
When you own a share, value flows back to you through two channels.
1. Dividends. The company directly transfers a portion of its profit to your bank account, in proportion to how many shares you own. HDFC Bank paid ₹19.5 per share as dividend in 2024. If you owned 100 shares, ₹1,950 simply landed in your account. No selling required.
2. Capital appreciation. Most of the profit a good company makes gets re-invested (new branches, new products, etc.), not paid as dividends. That re-investment makes the business bigger over time, which makes each share worth more, which lifts the price on screen. When you eventually sell, that price rise becomes your profit.
- Direct credit to your bank account
- Usually 1% to 3% per year for big Indian companies
- Tax-friendly in most cases (low rates for retail)
- Great for retirees who need monthly cash flow
- Example: ITC pays ~6% dividend yield
- No cash today, but share price grows over time
- Often 8% to 15% per year for good companies
- Tax only when you sell (long-term gains are tax-friendly)
- Great for young investors building wealth
- Example: HDFC Bank price grew ~13% annually for 20 years
Most retail investors focus only on the price ticker and ignore dividends. Big mistake. Over 20 years, dividends can quietly account for a third of your total return.
So what makes the price actually move?
The screen price is the result of a simple thing happening millions of times per second. Buyers and sellers placing orders.
If 100 people want to buy HDFC at ₹1,700 but only 20 people are willing to sell at that price, the price drifts up. Buyers compete by bidding higher. The price moves to ₹1,705, ₹1,710, until enough sellers are tempted in.
The underlying question that buyers and sellers are silently voting on is, "What is this business going to be worth in the future?" Good earnings announcement, new product, big contract win, and buyers pile in. Scandal, bad quarter, regulatory trouble, and sellers rush out.
Stop thinking of a share as a number on a screen. Think of it as a tiny ownership certificate in a real business that earns real money. The number on the screen is just today's collective guess about what that ownership is worth. Some days the guess is too high (overpriced). Some days too low (a bargain). Your job as an investor is to recognise the difference, not chase the number.
Market cap: how big is the business?
Multiply the share price by the total number of shares, and you get market capitalisation, or "market cap". It's the total value the market is putting on the whole business.
- HDFC Bank shares: ~₹1,800. Total shares: ~760 crore. Market cap: ~₹13.7 lakh crore. That's "large cap".
- A small chemicals company might have 10 crore shares at ₹250 each. Market cap: ₹2,500 crore. That's "small cap".
Indian markets group companies into three bands based on market cap.
| Category | Market Cap | Examples | Risk Profile |
|---|---|---|---|
| Large cap | Top 100 | Reliance, HDFC, TCS, Infosys | Stable, slow but steady |
| Mid cap | Rank 101 to 250 | Tube Investments, Bajaj Holdings | Higher growth, more volatile |
| Small cap | Rank 251 onwards | Anything smaller | Highest growth, highest risk |
A common starter rule: most of a beginner's portfolio should sit in large caps, with smaller slices in mid and small caps for growth.
Voting rights: technically yes, practically no
Owning a share gives you a vote at the company's annual general meeting. In theory, you help pick the board, approve the auditor, and vote on big decisions. In practice, retail shareholders like us own such tiny fractions that our votes get drowned by institutional investors (mutual funds, insurance companies, foreign investors).
Don't pretend voting rights are why you buy a share. The real reasons are dividends and capital appreciation.
A real Indian story
Sridhar inherited 100 shares of ITC from his father in 1995. The shares were trading at ₹15 each. He didn't sell them. He didn't actively trade. He just left them in his Demat account and forgot about them.
Over the next 30 years, ITC did two things. First, the share price climbed from ₹15 to over ₹450, a 30x rise. Second, ITC consistently paid dividends, often 50% or more of its profit. By 2025, Sridhar had received roughly ₹62,000 in dividends from those original 100 shares, with the shares themselves now worth around ₹45,000.
Total value created from doing absolutely nothing: roughly ₹1.07 lakh from an original asset worth ₹1,500. Forty years of patience, no stress, no Telegram tips. Just owning a piece of a business that kept selling cigarettes and biscuits to a billion people.
The catch most people miss
Owning a share is owning a business. So before you buy, you should at least know the business.
You don't need to read a 200-page annual report. But you should know basic things. What does the company sell? Who buys it? Is it profitable? Is it growing? Is it loaded with debt?
We'll teach you exactly how to check each of these in Level 3. For now, the rule is simple. If you can't explain what a company actually does in one sentence, don't buy its shares.
Key Takeaways
- A share is a fractional claim on a real business and its profits, not a casino chip.
- Two ways you make money. Dividends (cash to your bank), and capital appreciation (price rise on the share).
- Price moves because buyers and sellers are constantly voting on what the business will be worth in the future.
- Market cap groups companies into large, mid, and small. Different risk and growth profiles.
- Always know the business before owning the share. If you can't describe what they do in one sentence, skip it.