Stocks vs. Shares: What's the Difference? | Finances

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What Is This About?

If you have ever heard someone say, "I own stocks," or "I bought 100 shares of Apple," you may end up wondering, are stocks and shares the same thing? These terms are closely related, and some beginner investors may use them interchangeably, but stocks and shares are not the same thing.

Why Should Medical Professionals Care?

A stock represents ownership in a company. A share represents a unit of that ownership. Let's make it simple.

Imagine that you are talking to someone, point to a building and say, I own property in that building (stock), but you are not specifying how many apartments (shares) you own in the building. If a company is divided into one million equal pieces, each individual piece is a share. If you own 10 of those pieces, you own 10 shares of the company.

Collectively, whether it is the number of small pieces of a company or the number of apartments in a building, your ownership is called stock.

In the financial world, that distinction is very important. "I own Apple stock" and "I own 20 shares of Apple" can have very different meanings. The more shares you have representing your stock, the higher your power over the company, which in the case of massive shareholders can grant them a seat at the company's leadership table.

Now, there is another name for stocks. Individual securities. A single security is a single stock of one company.

Who Decides How Many Shares Exist?

Every company sets a maximum number of shares it is allowed to create, called its authorized shares. This limit is written into a legal document filed when the company is formed, and it's usually set higher than what's needed right away, so the company has room to grow.

Within that limit, the company's board of directors decides how many shares to actually issue at any given time, for example, to raise money to build new facilities or to reward their employees. If a company ever needs to create more shares than its limit allows, it has to go back to its shareholders and get their approval to raise the cap.

So, the accurate version is:

Shareholders (like you) set and approve the outer limit, the number of authorized shares.
The board of directors manages how many of those shares get issued day to day for people to buy and sell.

Why Do Companies Sell Shares?

Companies often need money, in most cases to grow. They may want to build new factories, develop new products, hire employees, expand into new countries, acquire another company, or invest in new technology. One way of raising money is by selling ownership in the company to investors.

When a private company decides to sell shares to the public for the first time, it may do so through an initial public offering, commonly called an IPO, a term you may have heard a lot about recently with AI companies. After those shares begin trading publicly, investors can buy and sell them in the stock market.

Selling shares isn't only for growth, though. It's also one of the main ways a struggling company raises cash when it needs it. Unlike a loan, shares don't have to be paid back and don't come with interest payments, which can make them appealing when a company is already under financial strain.

There's a trade-off, though. When a company creates new shares, the total number of pieces the company is divided into goes up. That means each existing share now represents a slightly smaller slice of the company. This is called dilution. And this is very important, because it is a big reason why news of a company issuing new shares can sometimes cause its stock price to drop. Investors may see this as either dilution or a sign the company needs cash urgently. A company that keeps issuing more and more shares, especially at falling prices, is often a warning sign. Be careful with those.

What Do You Actually Own?

When you buy a share, you are not simply buying a number moving up and down on a screen. You are buying a very small ownership interest in an actual business. If you own shares of a company that sells cars, develops software, operates stores, or manufactures medical devices, you indirectly own a tiny portion of that business. Whether the company is very successful or declares bankruptcy, your shares will reflect that. You gain or lose along with the company. Don't worry, though, a company going bankrupt doesn't mean you personally go bankrupt too. Of course, owning 10 shares of a company with billions of shares outstanding does not mean you can walk into headquarters and start making decisions. But you are still an owner. Depending on the type of shares you own, that ownership may give you certain rights, including the ability to vote on some corporate matters. Some companies also distribute part of their profits to shareholders through dividends.

How Is the Price of a Share Decided?

This depends on where the company is in its life.

For a brand-new public company (an IPO): there's no market price yet, so the company and its bankers negotiate one. This usually happens in a few steps:

Valuation: Bankers estimate what the company is worth by comparing it to other similar companies. They look at its expected future cash flow, and consider what private investors paid earlier.
Roadshow: Company leaders travel around pitching the business directly to big investors, like mutual funds, pension funds, and hedge funds, to see how much interest there really is.
Book building: Based on that interest, the bankers gather orders, how many shares investors want and at what price, and use that to settle on a price. The price established must still leave room for the stock to rise as soon as it starts trading. That first-day rise is often intentional; it rewards early investors and creates buzz.
Finally, the company takes its total estimated worth and divides it by the number of shares existing in total. That gives the price per share.

For a company already trading on the stock market: the price is set purely by supply and demand. Buyers and sellers constantly agree on a price in real time, based on everything from earnings and growth prospects to political news and overall market mood. No single person or company sets this price; it is set by the market itself.

For a company issuing new shares while already public: the new shares are usually priced slightly below the current market price, to give investors a reason to buy the new shares instead of the ones already trading.

Can Companies Overprice Their Shares on Purpose?

Sometimes, yes. And it's not always against the rules. For example, a company preparing for an IPO might push for a higher price, especially if earlier private investors want the IPO to at least match the value they originally paid for their investments. The risk is that if the price is too high, the stock can drop below its IPO price soon after it starts trading, which can hurt investor confidence and the company may end up losing money.

There's a real line, though, between optimistic pricing and outright manipulation. Deliberately deceiving the market, through fake positive news, hiding bad news, or creating artificial buying activity to make demand look stronger than it is, is illegal and is treated as securities fraud. Pricing high because a company genuinely (if optimistically) believes in its own value is normal business behavior; lying about the justification of that price is not.

How Can You Make Money Owning Shares?

There are generally two ways. First, the value of your shares may increase. If you buy a share for $100 and later sell it for $150, you have a $50 capital gain. Second, some companies pay dividends to shareholders. Instead of keeping all of their profits inside the business, they distribute a portion of those profits to the people who own shares.

Neither is guaranteed. A stock price can rise, fall, or remain relatively unchanged for years. A company can also reduce or eliminate its dividend. This is why owning stocks involves risk.

The Bottom Line

The easiest way to remember the distinction between stock and share is stock describes ownership in a company. A share tells you how many units of that ownership you have. "I own Microsoft stock" describes what you own. "I own 50 shares of Microsoft" describes how much you own. Once you understand that basic distinction, much of the language of investing starts to make more sense. And ultimately, that is what the stock market is: millions of investors buying and selling small pieces of ownership in businesses.

Key Takeaways

"Price is what you pay. Value is what you get."

Warren Buffett

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