What is a stock?
A tiny slice of a company. Buy one and you become a part-owner.
You've been parking your paycheck in a savings account, but everyone around you is talking about stocks. You've heard the phrase "buying a slice of a company" — but what does it actually mean? Today, let's unpack the word stock very slowly.
What is a stock?
A stock is a tiny slice of a company. Buy one slice and you become a small part-owner. Buy one share of Samsung Electronics and — tiny as the stake is — you're now one of its owners.
Why does the company sell slices?
To grow, a company needs money — to build factories, to hire more people. There are two main ways to raise it: borrow from a bank (debt), or split the company into many pieces and sell them. The pieces are stocks.
A bank loan has to be repaid with interest, but money raised by selling stock doesn't. In exchange, the company gives away a part of itself — so it shares profits with shareholders and makes big decisions together with them.
What's good about owning a stock?
You can make money two ways. First, dividends — when the company earns money, it shares part of the profit with shareholders. It's like pocket money, sized to how many slices you hold.
Second, capital gains — as the company grows and gets more popular, the value of your slice rises. Sell it for more than you paid, and the difference is your profit. Buy a slice for 10,000 won, sell at 15,000, and 5,000 is yours.
So why does the price move?
A stock's price ultimately reflects what people expect: 'how well will this company do from here?' Good news brings more buyers and the price rises; bad news brings more sellers and it falls. That's why the same company's price shifts a little every day.
Today's recap
A stock is a slice of a company, and buying it makes you a small owner. You earn through dividends and capital gains, and the price moves on expectations about the company's future. Remember just this and you're off to a fine start.