What Is the Stock Market?

The stock market is, at its core, a marketplace that connects companies with investors. It is a highly efficient system where ownership in real businesses is bought and sold — often with far less understanding than it deserves. Whether we realize it or not, the types of businesses that trade on the stock market surround us like an invisible net and impact nearly every aspect of our daily lives. They provide the products we use, the food that we eat, the electricity that we consume, and the fuel that put into our cars. These businesses own the stores and restaurants that we frequent, provide the essential goods and services we rely on, and are the driving force behind most emerging trends that we read about in the news, like Labubu’s, AI or self-driving cars.  

The great majority of companies do not start out on the stock market. They begin small —maybe as a startup, funded by the founders, their savings, or a handful of early investors. Over time, if the business succeeds, it grows. It hires employees, builds products, revolutionizes a service, generates revenue, and proves that its model works. Eventually, the company reaches a stage where it needs a much larger amount of money to expand further — maybe to enter new markets, build factories, or compete on a global scale. Instead of taking on debt, the company decides to “go public.” This process is called an initial public offering (IPO).

During an IPO, the company divides itself into millions (or even billions) of small pieces called shares and offers them to the public for the first time. Large institutions usually buy first, but once these shares begin trading on the open market, everyday investors can also participate. From that moment on, anyone with a brokerage account can buy or sell a tiny piece of that business. What was once a private company owned by a small group is now shared among thousands or even millions of investors around the world.

Why the Stock Market Exists

At its simplest level, the stock market is just a way for businesses to raise money to fund their future ambitions, for its founders and early investors to become extraordinarily wealthy in the process, and for common individuals to try and build wealth over time by owning a small piece of a productive asset.

Companies need money to grow and have several options available to them to do so. They can use their own money, borrow from the bank, or raise money by selling small pieces of ownership in their business to the public. If they do not have enough of their own money and do not — or cannot — borrow from banks, they can sell pieces of the business to a small group of large investors or to a large group of small investors.

When they choose to go to the stock market for money, it is often linked directly to a specific expressed purpose. For example, let’s say you are the founder and CEO of a well-established toy manufacturer that is a clear leader across North America. You want to take your business to the next level and become a global leader. One option available to you — and the path that most founders choose to take — is to file an IPO (as mentioned above), give up a portion of your own ownership in the business in exchange for a large sum of money, which your company then uses to expand, hire more people, build factories oversees, and/or create new products or services.

If enough institutions believe in your story, the stock will successfully complete its IPO and will then be listed on the stock market. It is at this point that we call these businesses publicly-listed or publicly-traded; and it is now that we — the small investor — can now begin to buy and sell them. All stocks that are listed on the stock market were born either through the IPO process or they were spun off from other existing publicly listed companies.

As the founder and CEO of the newly-listed toy company, you now own less than you did before — however, what you own is worth significantly more. By giving up a portion of your ownership, you have traded control for scale. The capital raised allows the business to grow faster, expand into new markets, and increase its long-term earnings potential. At the same time, new investors — ranging from large institutions to everyday individuals —now share in that ownership. When someone buys shares of your company on the stock market, they are not simply trading a ticker symbol; they are buying a small piece of the business you built.

Over time, if your company executes well — grows revenue, improves profitability, and strengthens its competitive position — the underlying value of the business increases. In doing so, the company creates real value for society, and that value is ultimately reflected in the returns it earns for its shareholders (those who own shares in the business).

How Prices Move

Over a long enough period (greater than five years), a company’s share price always follows the value being created within the business. In between, however, the path is rarely smooth. Prices change daily based on supply and demand. If more people want to buy a stock than sell it, the price goes up. If more people want to sell, the price goes down. Day-to-day share price fluctuations are often driven by robotic trading, algorithms, as well as emotion, speculation, macroeconomic news, headlines in the newspaper, and shifts in the prevailing sentiment for a given company or industry. This causes the price you see on the screen in front of you to deviate wildly from the actual value being created by the business behind the ticker flashing across your screen.

Warren Buffett famously explains the stock market through the idea of a business partner named Mr. Market. Imagine you own a small business with a partner who shows up every day offering to buy your share or sell you his. Some days he’s optimistic and offers a very high price. Other days he’s pessimistic and offers a very low price. You are never forced to accept his price.

Buffett’s point is that the stock market is there to serve you, not guide you. Prices move constantly, and they rarely reflect the true long-term value of the business. Smart investors take advantage of irrational prices and deep pessimism to buy rather than reacting emotionally to them. For the investor who focuses only on price, the market can feel unpredictable and chaotic. But for the investor who understands the underlying business, these fluctuations begin to look less like noise — and more like opportunities to act rationally when others are not. As a beginner, use our stock mispricing finder tool to learn how to spot these opportunities.

As a rule, it is important that you understand the business before you decide to buy the stock. Then, when you feel that you understand the business better than most others, aim to buy shares at points of peak pessimism — when the headlines and noise surrounding the business are the most negative. Provided you believe in the long-term prospects of the business and are prepared to be patient, the share price will converge with the value that the underlying business creates, given a long enough passage of time.

Why This Matters for Beginners

The stock market is one of the most accessible ways for individuals to build long-term wealth. It is not as complicated as it may appear, and in many ways, everyday people have a natural advantage.

You already interact with businesses every day. You see which stores are always busy, which products people love, and which trends are gaining momentum. This real-world exposure gives you a foundation that many people overlook.

This means you don’t need to start with complex financial models or advanced analysis. You can begin by observing the world around you and asking simple questions: Which companies are thriving? Which products are becoming essential? Which businesses are consistently improving? If you have never thought about the world in this way before, use our Circle of Competence Workbook to discover the industries and companies you know best.

As you combine this awareness with basic financial understanding, investing becomes less about guessing and more about recognizing quality. That shift — from speculation to understanding — is what builds confidence and skill over time.

There is also a practical reason why learning how to invest in the stock market is non-negotiable: inflation. Over time, the cost of living rises, and the cash you leave in the bank slowly loses its purchasing power. By owning shares in strong businesses that grow, adapt, and pass on higher costs through higher prices to their customers, you give your money the chance to grow faster than the cost of everything around you.

While stock prices can fluctuate in the short term, the market has historically trended upward over long periods of time because great businesses in established countries continue to innovate and expand. Understanding how the stock market works is the first step toward participating in that growth in a thoughtful and informed way.

Final Thoughts

The stock market is not as complicated as many people make it out to be.

For beginners, recognize that this is a place where real businesses meet everyday people, giving you a chance to own a piece of something that generates value for society and its shareholders. As you will come to see, you do not need to be the smartest person in the room to become a great investor.

First, start by paying attention to the world around you — learn about the businesses that you and your loved ones interact with — and begin to think long term. Be curious, see which companies are publicly listed and check out their investor relations page. Do some preliminary market research, just to get a sense for how the machine runs.

Learning from scratch can be a daunting task, however, you really do not have a choice if you want to protect your standard of living over time. Start small, stay curious, and remember: the stock market is a tool for building wealth, protecting yourself against inflation, and ultimately, shaping the future that you want to live in. If you would prefer to outsource your investment decisions to the professionals, read more about our Mutual Fund Recommendations.