What Is Equity? Buying and Selling Shares Explained
When you buy a share, you are buying a small ownership stake in a real company. Here is what that actually means — and how you make or lose money from it.
The word equity simply means ownership. When a company divides itself into millions of equal pieces and sells them to the public, each piece is called a share. Buying one share means you own a proportionate slice of that entire company — its profits, its assets, and yes, its losses too.
Owning a Slice of a Business
Say a pizza restaurant chain is worth $10 million and has issued 1 million shares. Each share represents 1/1,000,000th of the business. If you own 1,000 shares, you own 0.1% of the company. If the chain expands and is now worth $20 million, your 0.1% stake is worth $20,000 — twice what it was.
What Does "Buying a Share" Actually Mean?
When you place a buy order through your broker, you are telling the stock exchange: "I want to purchase X shares at this price." If there is a seller willing to sell at that price, the trade happens. Ownership is transferred to you, money is transferred to the seller, and the transaction is recorded. The whole process takes milliseconds.
You do not receive a physical certificate or hand over a briefcase of cash. Everything is digital. Your broker holds a record that says you own those shares, and that record is backed by the exchange and a central depository — a secure registry that tracks every share's ownership.
Two Ways to Make Money From Shares
- Capital appreciation — the share price rises above what you paid. You sell and pocket the difference.
- Dividends — some companies distribute a portion of their profits to shareholders as cash payments, typically once or twice a year. You receive this just for holding the shares.
Capital Appreciation Example
You buy 100 shares of a company at $50 each — spending $5,000 in total. A year later the shares are at $70. You sell. You receive $7,000. Your profit is $2,000 before taxes and fees.
What Drives Share Prices?
A share's price changes because people's opinion of the company's future changes. Strong earnings, new products, a growing market, or a capable leadership team push prices up. Poor results, rising debt, management scandals, or a shrinking industry push prices down.
In the short term, prices also move based on broader market sentiment — fear and greed. During a market panic, even good companies' shares fall. During optimistic periods, even average companies can rise. Long-term, prices tend to track actual business performance.
| Factor | Effect on price |
|---|---|
| Company earns more profit than expected | Price rises |
| Company misses earnings target | Price falls |
| Economy is doing well | Generally rises across markets |
| Recession fears | Generally falls across markets |
| Interest rates rise sharply | Often negative — investors can earn returns elsewhere |
| A rival launches a better product | Company's price may fall |
| Acquisition or merger announced | Target company's price often jumps |
What Happens When You Sell?
Selling a share works exactly in reverse. You instruct your broker to sell. The exchange matches you with a buyer. They pay you the agreed price, and ownership transfers to them. Your broker deposits the cash in your account, usually within 1–2 business days (the settlement period).
You Can Also Lose Money
If you buy a share at $50 and the price drops to $30, selling locks in a $20 loss per share. Shares are not guaranteed to go up. Companies can perform poorly, go bankrupt, or simply fall out of favour with investors. Unlike a fixed deposit or bond, there is no guarantee you will get your money back.
Common Terms You Will Hear
| Term | What it means |
|---|---|
| Portfolio | The collection of all shares (and other investments) you own |
| Going long | Buying shares expecting the price to rise |
| Short selling | Borrowing shares, selling them, hoping to buy back cheaper — profiting from a fall |
| Holding period | How long you own a share before selling |
| Return | The profit or loss expressed as a percentage of what you invested |
| Unrealised gain/loss | A gain or loss that exists on paper but you have not yet sold to lock it in |
| Realised gain/loss | A gain or loss you have locked in by actually selling |
Equity Is Ownership, Not Just a Number on a Screen
It is easy to think of a share price as just a number that goes up or down. But behind every share is a real business with real employees, products, customers and cash flows. The price is the market's current best guess at what that business is worth. When you buy equity, you are betting that the market is wrong — and the business is worth more than the current price.
Key Takeaways
- Equity means ownership. A share is one unit of ownership in a company.
- Buying shares makes you a part-owner — entitled to a slice of profits and assets.
- You profit when the share price rises above what you paid, or when the company pays dividends.
- You lose money when the share price falls below what you paid.
- Selling a share passes your ownership to someone else at the agreed price.