A stock is the most fundamental building block of investing — a small, tradeable piece of ownership in a real company. Own a share, and a slice of that business is yours.
A stock (also called a share or equity) represents fractional ownership of a company. If a company has issued one million shares and you own one, you own one-millionth of the business — including a claim on its profits and assets. The terms “stock” and “share” are used almost interchangeably; technically “stock” is the general concept and a “share” is one unit of it.
Companies sell shares to raise money — to build factories, hire staff, fund research or pay down debt — without taking on a loan. In exchange, the new shareholders get a stake in the company's future. The first time a company sells shares to the public is its IPO (initial public offering).
Owning a stock can pay off two ways. First, capital gains: if you buy at $50 and the price rises to $70, the $20 difference is your gain when you sell. Second, dividends: many companies pay out part of their profits as regular cash to shareholders — explained in what are dividends.
Common stock is what most people buy: it carries voting rights and full exposure to the company's ups and downs. Preferred stock usually has no votes but gets paid dividends first and ranks ahead of common shares if the company is liquidated. A company's total market value of shares is its market cap.
Own shares risk-free: buy and sell fictional companies with $10,000 of play money in the stock market simulator and watch ownership turn into profit or loss.
Imagine you buy 10 shares at $50 each, a $500 investment. A year later the price is $58 and the company has paid $1.20 per share in dividends. Your return has two parts:
That split — price change plus dividends — is the whole game. You can run your own figures in the stock profit calculator and dividend yield guide.
Over the very long run, U.S. stocks have been the highest-returning major asset class. Wharton professor Jeremy Siegel’s research in Stocks for the Long Run found broad U.S. equities returned roughly 6.5–7% per year after inflation over more than two centuries — about 9–10% before inflation. The catch is that those averages hide brutal interim drops; staying invested through them is what captures the return.
| Share type | Typical rights |
|---|---|
| Common stock | Voting rights, full upside, last in line if the company fails |
| Preferred stock | Usually no vote, fixed dividend paid first, ranks ahead of common |
Not advice: educational content only. For authoritative basics see the SEC at investor.gov.
Keep building: see what are dividends, what is an ETF, and the wider picture in the stock market for beginners.
A stock is a small piece of ownership in a company. Buying one share makes you a part-owner with a claim on the company's profits and assets.
They are nearly the same. 'Stock' is the general term for ownership in a company, while a 'share' is a single unit of that stock.
Two main ways: capital gains, when you sell a share for more than you paid, and dividends, which are cash payments some companies make to shareholders from their profits.
Common stock usually carries voting rights and full exposure to the company's performance. Preferred stock typically has no votes but receives dividends first and ranks ahead if the company is liquidated.