Stock Market Fundamentals
What Is a Stock
A stock is a share of a company. When you buy a share of Apple, you become a small owner of the company. If the company grows, your share grows too.
Major Exchanges
- NYSE — New York Stock Exchange (largest in the world)
- NASDAQ — Home of tech giants
- LSE — London Stock Exchange
What Is an Index
An index is a "basket" of stocks. For example:
- S&P 500 — 500 largest US companies
- Dow Jones — 30 large industrial companies
- NASDAQ 100 — 100 largest non-financial NASDAQ companies
Your First Investment
For beginners we recommend:
- Start with an ETF (S&P 500 tracker), not individual stocks
- Invest only money you don't need for the next 5 years
- Review your portfolio at most once a month
📊 Markets trend up over time. Position matters more than perfect timing.

