📚 Stock Market Glossary
Clear, beginner-friendly explanations, real-world analogies, and visual formulas for key stock market terminology.
Market Capitalization
Valuation💡 Key Takeaway: The total dollar market value of a company's outstanding shares of stock.
Pizza Slices Analogy: A $5 slice from a 4-slice pizza means the whole pie costs $20. A $2 slice from a 16-slice pizza means the whole pie costs $32! Look at the total pie, not the slice price.
😎 10-Second Show-off Pro Tip for Friends!
😎 Show-off Tip: Say, 'Always judge size by market cap, not share price! A stock split drops the price per share but leaves total market cap completely unchanged.'
📖 Beginner-Friendly Explanation
STEP 1
Core Concept & Meaning
Market capitalization measures a company's total market value.
STEP 2
Why It Matters & Mechanism
Total Market Cap = Current Stock Price × Total Shares Outstanding.
STEP 3
Practical Investment Tips & Pitfalls
Never judge a company size solely by its per-share stock price! A $5 stock with 1 billion shares ($5B market cap) is 10 times larger than a $500 stock with 1 million shares ($500M market cap).
📊 Market capitalization calculation formula
Market capitalization = Current stock price (KRW 70,000) × Total number of issued shares (5.96 billion shares) ≒ Approximately KRW 417 trillion
▶ When a company with the largest market capitalization, like Samsung Electronics, rises 1%, the KOSPI index dances.
⚖️ Key Comparison at a Glance
| Category | Company A | Company B |
|---|---|---|
| Current stock price per share | 500,000 won (looks expensive) | 5,000 won (looks cheap) |
| Number of shares issued | 1,000,000 shares | 1,000,000,000 shares |
| Real Market Capitalization (Ransom Value) | KRW 500 billion (mid-cap stocks) | 5 trillion won (large-cap stocks - 10 times larger!) |
| Diagnostic results | The stock price is expensive, but the company size is small | Stock price is low, but company size is huge |
📌 Practical Market & Real-World Example
Nvidia surpassing a $3 trillion market cap means a single U.S. company is worth more than the entire South Korean stock market combined.