Why Do Public Companies Exist?

Every day, millions of investors buy and sell shares on stock exchanges around the world. Yet few stop to ask a surprisingly simple question: why do public companies exist in the first place?

The answer goes back to one of the biggest challenges any successful business faces – growth. Building a company requires capital, and at some point many businesses need more money than their founders can provide on their own.

This week, we’ll explore why companies list on stock exchanges, what investors are actually buying when they purchase shares, and why some businesses choose to remain private despite having the opportunity to go public.

Why Do Companies List on a Stock Exchange?

Imagine you own a small business that has become wildly successful. Demand for your product is growing rapidly, but expanding requires new factories, more employees, better technology, and access to new markets.

All of this costs money.

One option is to borrow from a bank. Another is to bring in private investors. But there is a limit to how much capital can be raised from a small group of people.

Listing on a stock exchange allows a company to raise money from thousands or even millions of investors all at once. In exchange for capital, the company sells ownership stakes in the business, known as shares.

This creates a powerful relationship. Investors provide the capital needed for growth, while the company works to increase its value over time. If the business succeeds, shareholders benefit alongside management and the founders.

What Are Shareholders Actually Buying?

Many people think they are buying a ticker symbol, a chart, or a piece of paper.

In reality, they are buying a small ownership stake in a real business.

When you purchase shares in a company (not leveraged CFDs), you become a part-owner of that business. While your ownership percentage may be tiny, you still participate in the company’s success.

If the company grows its profits, expands into new markets, develops valuable products, or increases its competitive advantage, the value of the business can rise. Over time, this may be reflected in a higher share price.

Some companies also distribute a portion of their profits to shareholders through dividends (we’ll cover this in the next two weeks).

This is why successful investing is often about understanding businesses rather than simply “buying low and selling high”. The share price may fluctuate every day, but behind every listed company is a business attempting to generate profits and create value.

The stock market is ultimately a marketplace where ownership in businesses changes hands.

Why Don’t All Successful Companies Go Public?

Going public may sound attractive, but it is not always the right decision.

Public companies face strict reporting requirements, increased regulation, and constant scrutiny from investors, analysts, and the media. Every major decision can be examined by the market.

Some business owners prefer to maintain complete control over their companies without answering to outside shareholders.

Others may have access to sufficient private funding and simply don’t need the capital that public markets provide.

There is also the pressure that comes with public ownership. Share prices are visible every day, and management teams often face expectations to deliver strong results every quarter.

For certain businesses, remaining private allows management to focus on long-term growth without the distractions of daily market sentiment.

This is why some of the world’s most successful companies remain privately owned for many years before considering a public listing. Some of the biggest names in business today are still privately owned, including Lego.

Interestingly, that hasn’t stopped people from making money from the company’s success. Certain limited-edition Lego sets have become highly sought-after collectibles, with some appreciating dramatically in value over time. It’s a useful reminder that there is often more than one way to invest in a great business.

Investing often begins with analysing share prices, but the real story starts much earlier. Public companies exist because businesses need capital to grow, and investors are willing to provide that capital in exchange for ownership. Understanding this relationship helps investors look beyond market noise and focus on what really matters: the quality of the underlying business. But that’s a topic for another day.