Checkpoint 3 of 3

Understanding Stock Value

5 min

Stock prices fluctuate based on supply, demand, and investor sentiment about a company's future earnings.

What Drives Stock Prices

Stock prices reflect what investors believe a company is worth in the future. Good earnings reports, new products, or market trends can drive prices up. Bad news, competition, or economic downturns can push them down.

Market Cap

Market capitalization is the total value of all a company's shares. It's calculated by multiplying the stock price by the number of outstanding shares. A $50 stock with 100 million shares has a $5 billion market cap.

Market Cap = Stock Price × Outstanding Shares

Example:

$50 × 100,000,000 shares = $5,000,000,000

Long-Term vs. Short-Term Thinking

Day-to-day prices are volatile and emotional. Long-term investors focus on business fundamentals: revenue growth, profitability, and competitive advantages. Short-term traders try to profit from price swings.

Key Takeaways

Stock prices reflect future expectations, not just current value
Market cap shows the total value of a company
Long-term investing focuses on fundamentals; short-term trading on price movements