What is a stock?
A stock is a small piece of a company. Owning one makes you a part-owner. It sounds big, but the idea is simple.
A company in pieces
Picture a pizzeria. Business is good, and the owner wants to open a second location. She does not have the money. Instead of taking out a large loan, she splits her company into equal pieces and sells some of them. Each piece is a share of stock. Whoever buys one gives the pizzeria money and gets a stake in the company in return. Siemens, Adidas and SAP work exactly the same way, just on a much larger scale.
What a slice gets you
Owning a share makes you a part-owner, and that means something. You are entitled to part of the profit when the company pays it out. That payout is called a dividend. You can vote at the annual general meeting, where shareholders come together once a year. And when the company becomes more valuable, your slice usually does too. When things go badly, it can just as easily lose value.
An example with numbers
Say the whole pizzeria is worth 80,000 euros. Split into 8 slices, each share is worth 10,000 euros. The second location does well, and a year later the company is worth 120,000 euros. Your slice has grown with it, to 15,000 euros. All you did was be a part-owner. It works the other way too. If customers stay away and the pizzeria drops to 40,000 euros, your slice is worth just 5,000.
That is how many shares SAP has issued. For a large company, the pizza is cut into more than a billion slices.
Small slices, big company
Our pizzeria has 8 slices. A large company often has hundreds of millions, or even billions. So a single share is a tiny fraction of the whole. That is perfectly normal. You do not need to be a big investor to take part. With a small amount, you can become a part-owner of a company whose products you use every day. In Germany, companies that issue shares are usually an AG (Aktiengesellschaft, a public limited company) or an SE (a European company).
A common misunderstanding: a share does not give you a particular chair or machine. You own a slice of the whole company, including its buildings, ideas, debts and profits.
An honest look at the risk
A stock is not a savings account. There is no fixed interest and no guarantee. If the company grows, your share can become worth much more. If it fails, it can become worthless. There is one reassuring rule, though: you cannot lose more than you put in. If the pizzeria runs up debts, shareholders are not on the hook for them. Your risk is limited to what you paid for the share. A loan to the pizzeria would be the opposite: fixed interest, but no share in its success.
So where do you buy a slice?
One question remains. The pizzeria can sell its slices to friends and neighbours. But what if you want to sell yours later? And how does a large company find millions of buyers? There is a place where buyers and sellers meet: the stock exchange. That is the next chapter.
In short
- A stock is a stake in a company. Owning one makes you a part-owner.
- Shareholders can share in profits, vote at the general meeting and benefit when the company grows in value.
- The value can rise and fall. The most you can lose is the amount you invested.