Stocks are where almost everyone starts, and for good reason: they're the most intuitive instrument on the whole map. A stock — also called a share — is literally a small piece of ownership in a real company. Buy one share of a company with a million shares, and you own one-millionth of it: its factories, its brand, its future profits. This lesson explains what a share really is, what makes its price move, and why stocks are the natural foundation for everything else you'll learn.
Because a share is ownership, its price reflects what people think that ownership is worth — and that opinion changes constantly, which is why prices move all day.
What actually moves a stock price
A share price is a live tug-of-war (Lesson 1) between buyers and sellers. Anything that changes how much people want to own the company shifts the balance. Tap through the main forces and watch each push price:
The big drivers, in plain terms:
- Earnings — every quarter a company reports its profits. Beat expectations and buyers pile in; miss and sellers rush out.
- News — a new product, a lawsuit, a CEO change. Fresh information changes opinions instantly.
- The sector and the whole market — a great company can still fall on a bad day for its industry or the market as a whole. No stock trades in a vacuum.
- Supply and demand — underneath every headline, it's just more eager buyers than sellers (price up) or the reverse (price down).
You don't need to predict all of these — you just need to understand that price is the result of them, which is why learning to read a chart matters more than chasing every headline.
Dividends: getting paid to hold
Some companies share their profits directly with shareholders as dividends — regular cash payments, often every quarter, just for owning the stock. A stock that pays a 3% dividend hands you 3% of its price per year in cash, on top of any price gain. Not every company pays one (younger, fast-growing firms usually reinvest instead), but dividends are one of the two ways a stock makes you money: the price going up, and the cash it pays you along the way.
Why stocks are the foundation
Stocks are the reference point for the entire landscape. Indices are baskets of stocks (Lesson 4). Futures and options are often contracts about stocks or stock indices. Even when you move on to forex or gold, you carry the same mental model you build here: price is a live agreement, moved by supply and demand, that you can read on a chart.
And here's the first thread toward the course's destination: you can own a stock outright, or — once you know how — you can control the same 100 shares with a single option for a fraction of the cash, with your risk capped. That's a Lesson 11 idea, but it starts here, with understanding what a share is in the first place.
Related reading
- How to Read Stock Charts — turning price into a picture you can read
- US Stock Trading Lifecycles — what happens from order to settlement
- Price Action Trading Mental Model — reading what price is telling you
- Calls, Puts, Long, Short — the four ways to trade a stock's direction
Next: Lesson 3 — how a trade actually happens, the plumbing behind every price.