A share of stock is a piece of a company. Not a piece of paper that tracks the company, and not a bet on the company. An actual slice of the business, with your name against it.
That sentence is the whole foundation, and most of what confuses beginners comes from losing sight of it.
What You Own
Companies need money to grow. One way to raise it is to sell small pieces of the business to the public, and each piece is a share.
If a company has issued a billion shares and you hold one of them, you own one billionth of it. That sounds like nothing, and in terms of control it is. But it is a real claim on a real business: its buildings, its brands, its contracts, and its profits.
Two things usually come with a share:
- A claim on the profits. Some companies pay part of their profit out to shareholders as cash, called a dividend. Others keep it and spend it on growing the business. Either way the profit belongs to the owners, and you are one of them.
- A vote. Most shares carry a vote on company matters, such as who sits on the board. In practice one vote out of a billion decides nothing, and plenty of shareholders never cast theirs.
Where the Price Comes From
The company does not set the share price. Nobody sets it.
A stock's price is the last price at which someone sold a share and someone else bought it. It is a record of an agreement between two strangers, updated over and over through the trading day.
Think of the resale market for concert tickets. There is no official price for a seat. There is only what the last person paid. If more people turn up wanting seats, the last price paid drifts up. If everyone loses interest, it drifts down.
Stocks work the same way, with one important difference: the thing changing hands is a piece of a business that is out there earning money, so there is something real underneath the price.
Why the Price Moves
Prices move when the crowd changes its mind about what the business is worth. That happens for three broad reasons.
The company itself. Sales grew faster than expected. A factory burned down. A new product landed. The company earns more or less than people assumed, and the price adjusts to the new information.
The industry or the economy. Interest rates rise, and borrowing gets more expensive for every company at once. Oil gets cheaper, and airlines get a break. A whole group of stocks can move on news that never mentions any one of them by name.
Mood. Some days people are nervous and sell things they were happy to own last week. Nothing changed at the company. The crowd changed. This is the part that feels least fair and is completely normal.
The Part That Trips People Up
A share price is not a scorecard for the company. A $12 stock is not cheaper than a $600 stock in any way that matters.
The price of one share depends on how many shares exist. A company worth $50 billion that divided itself into 50 billion shares has a $1 share price. The same company divided into 500 million shares has a $100 share price. Same business, same value, different sticker.
What tells you the size of a company is the share price multiplied by the number of shares. That number has a name, market capitalization, and it gets a lesson of its own later in this course.
What This Means for You
You are not buying a ticker symbol or a squiggly line. You are becoming a part owner of a business, in a very small way, alongside everyone else who holds shares.
That framing does a lot of work later. When the price drops 8% on a Tuesday, the question stops being "why is my line going down" and becomes "did anything happen to the business I own a piece of." Those are different questions, and the second one has an answer.
The rest of this course is mostly about learning to find it.
This content is for informational purposes only and does not constitute financial advice.