Owning a Piece of a Company
A share is a slice of ownership in a real business. Here is what you actually own, what you get, and why prices move.
A slice of a business
A stock, also called a share or equity, is a unit of ownership in a company. If a company has one million shares and you own one thousand of them, you own 0.1% of the business. That slice gives you a claim on a portion of the company’s assets and future profits.
Most people never think of themselves as business owners when they buy a stock, but that is exactly what they are. The value of your slice ultimately depends on how valuable the whole business becomes.
Your percentage ownership = your shares ÷ total shares outstanding.
What shareholders get
Owning common stock typically comes with a few rights and benefits:
- Share in growth: if the company becomes more valuable, your shares can rise in price.
- Dividends: if the board decides to pay them, you receive your portion of distributed profits.
- Voting: common shareholders usually vote on major matters like electing the board of directors.
- Limited liability: you can lose what you invested, but you are not personally on the hook for the company’s debts.
Why stock prices move
A share price is simply the most recent price at which a buyer and seller agreed to trade. Prices move all day as buyers and sellers change their minds about what the company is worth.
Over the long run, prices tend to follow the company’s earnings and cash flow, because that is what an owner is really buying. In the short run, prices react to news, earnings reports, interest rates, the overall mood of the market and simple supply and demand. That is why a stock can swing a lot even when nothing about the business has changed.
A real daily chart of a large, well-known company. Each candle is one trading day; the bars along the bottom show how many shares traded.
Common vs. preferred stock
Most shares people buy are common stock. Some companies also issue preferred stock, which usually pays a fixed dividend and gets paid before common shareholders if the company is liquidated, but typically comes with little or no voting power and less upside.
| Common stock | Preferred stock | |
|---|---|---|
| Voting rights | Usually yes | Usually no |
| Dividends | Variable, not guaranteed | Typically fixed, paid first |
| Upside potential | Higher | Limited |
| Priority if liquidated | Last | Ahead of common |
Common vs. preferred shares in general terms; exact features vary by issue.
Tickers and exchanges
Each publicly traded stock has a ticker symbol, a short code like AAPL or MSFT, used to identify it on an exchange. Exchanges are the marketplaces where shares change hands. When you buy a share through a broker, you are almost always buying it from another investor, not from the company itself. The company only receives money when it sells new shares, such as in an initial public offering.
Owning a stock vs. trading it
Some people buy stocks to hold for years and share in a company’s growth. Others trade them over days or weeks, trying to profit from price swings using charts and momentum. Both approaches use the same instrument. What differs is the time frame, the tools, and how risk is managed. Investing School covers both, starting here with the foundation: a share is ownership in a real business.
What can make your shares worth more
Because a share is a claim on a business, the most reliable way for its value to grow is for the business itself to grow. Several things can drive that over time:
- Growing sales and profits: more earnings per share usually supports a higher price.
- Share buybacks: when a company retires its own shares, each remaining share owns a bigger slice.
- Dividends: cash paid out that you can spend or reinvest.
- Changes in sentiment: investors may become willing to pay more (or less) for each dollar of earnings.
What can make them worth less
The same forces work in reverse. Falling profits, heavy debt, new competitors, scandals, or simply investors becoming less optimistic can push a stock down. Companies can also issue new shares, which dilutes existing owners by shrinking each slice. In the worst case, a company can go bankrupt, and common shareholders are last in line, often receiving nothing. This is why understanding the business, and not owning too much of any single stock, matters so much.
Key takeaways
- A stock is a unit of ownership in a company.
- Shareholders can benefit from price growth and dividends, and usually get a vote.
- Your loss is limited to what you invested (limited liability).
- Short-term prices move with news and sentiment; long-term prices tend to follow earnings.
- After an IPO, you buy shares from other investors on an exchange, not from the company.