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Stock Market Basics
What is the stock market?
The stock market is where shares of publicly traded companies are bought and sold. When you buy a stock, you are buying partial ownership in a company. The value of that stock can rise or fall based on company performance, investor expectations, interest rates, economic conditions, and overall market sentiment.
Example:
If someone buys shares of a company at $50 per share and the stock later trades at $60, the shares have increased in value. If the stock drops to $40, the shares have decreased in value.
Why do stock prices move?
Stock prices move because buyers and sellers constantly reassess what a company is worth. Earnings reports, news, economic data, interest rates, analyst expectations, and investor emotions can all affect price.
Example:
A company may report stronger-than-expected earnings, causing more buyers to enter the market. That increased demand can push the stock price higher.
What is a market index?
A market index tracks the performance of a group of stocks. Indexes are often used to measure the overall direction of the market or a specific segment of it.
Example:
The S&P 500 tracks large U.S. companies. The Nasdaq-100 tracks many technology-focused companies. The Russell 2000 tracks smaller U.S. companies.
What is volatility?
Volatility measures how much prices move up and down. Higher volatility usually means larger price swings. Lower volatility usually means smaller price movements.
Example:
A stock that moves from $100 to $110, then back to $95, is more volatile than a stock that stays between $99 and $101.
Key takeaway
Before learning options, traders should understand basic stock market movement, indexes, volatility, and the relationship between risk and potential reward.