™30-second takeaway
Market Capitalization Explained, in one thought.
See what market cap measures, how it changes and why share price alone says little about company size.
See how each idea connects before exploring the details below.
Put the idea into numbers.
A company with 100 million shares at $20 has a $2 billion market capitalization. A $200 share price alone does not make another company larger.
Where understanding breaks down.
Comparing share prices without considering shares outstanding, business value or per-share fundamentals.
Remember this.
A stock price is one unit of ownership, not the value of the entire company.
What size can suggest
Large-, mid- and small-cap labels can provide context about scale, liquidity and business maturity, but category boundaries vary by source and over time.
Market cap is not enterprise value
Market cap measures equity value. Enterprise value adds debt and other claims while subtracting cash under a chosen methodology.
Use it as a starting point
Market cap does not reveal profitability, balance-sheet strength or whether a stock is expensive. Connect size with fundamentals and risk.
Use this as a foundation, then verify current rules and product details with primary sources and regulated providers before acting.
Primary sources and further reading
Verify the current details.
Market rules and product features can change. These authoritative starting points help readers confirm current information.
Connect the concept
Go from explanation to application.
Continue with a related definition and an educational calculator that makes the numbers easier to see.