What is the Stock Market?

The stock market is a marketplace where buyers and sellers come together to trade shares of publicly listed companies. When you buy a share you are buying a small ownership stake in that company.

Why does the stock market exist?

Companies need money to grow. Instead of borrowing from a bank, they can sell shares to the public. This is called an IPO, an Initial Public Offering. In exchange for their money, investors receive a share of ownership and the right to participate in the company's future profits.

For investors, the stock market provides a way to grow wealth over time by owning pieces of successful businesses.

How does it work?

When you place an order to buy shares through a broker, that order goes to a stock exchange. Like the NYSE in New York, Euronext in Amsterdam, or the London Stock Exchange. The exchange matches your buy order with someone else's sell order and the trade is executed.

The price of a share changes constantly based on supply and demand. When more people want to buy a stock than sell it, the price goes up. When more people want to sell than buy, the price goes down.

What moves stock prices?

Many things influence stock prices. Company earnings, economic data, interest rates, and investor sentiment all play a role. In the short term prices can be driven by emotion and speculation. In the long term prices tend to follow the underlying performance of the business.

Why does it matter for you?

Historically the stock market has been one of the best ways to grow wealth over long periods of time. The S&P 500, an index of 500 large American companies has returned an average of roughly 10% per year over the past century, including dividends.

That does not mean it goes up every year. Markets fall, sometimes sharply. But patient, long term investors have historically been rewarded.