Market capitalization and enterprise value both try to answer "what is this company worth?" from different angles. Market cap values the equity the shareholders own. Enterprise value estimates what it would cost to buy the whole business, debt and all.
Key takeaways
Market cap = share price × shares outstanding
Simplified enterprise value = market cap + total debt − cash & equivalents
Market cap is what the market says the shareholders' stake is worth. The short enterprise-value line then adjusts for the balance sheet: it adds interest-bearing debt, because an acquirer inherits it, and subtracts cash, because an acquirer effectively gets it back. Preferred equity and non-controlling interests belong in a fuller EV when they are material. Even that fuller figure is not the final acquisition cheque — a buyer still prices control, synergies, taxes, and deal costs separately.
Picture two companies that both carry a market cap of $100 billion:
| Company | Market cap | Debt | Cash | Enterprise value |
|---|---|---|---|---|
| A | $100B | $0 | $20B | $80B |
| B | $100B | $40B | $5B | $135B |
Same market cap, very different enterprise values. Company A has a lower enterprise value than its market cap, thanks to its cash. Company B has a higher enterprise value, because a buyer takes on its debt. Market cap alone hides all of that.
A fuller bridge, still simplified, runs the other way too:
Equity value ≈ enterprise value − debt − preferred − non-controlling interests + cash
Start from enterprise value, subtract claims that sit ahead of common equity, and add cash. Preferred stock and non-controlling interests belong in that subtraction when they are material. Even then, EV is not a complete acquisition price: a buyer still prices control, synergies, taxes, and deal costs separately.
Compare two live pages. On Boeing, enterprise value sits above market cap because a buyer inherits the debt (debt/equity is also on that page). On Apple, cash pulls enterprise value below market cap. Use the dated figures on those pages — not a number from memory.
Neither number, on its own, is a verdict. They measure different things. Market cap is silent on debt and cash. Enterprise value is silent on whether the business is any good.
Reach for market cap when you want to compare company size quickly or rank companies (as the main ranking does), gauge how much a stock will move a market-cap-weighted index, or talk about the value that belongs to shareholders. MarketCapLens ranks by market cap on purpose: it is the standard, transparent measure of equity size.
Reach for enterprise value when you are comparing companies with very different debt loads, pricing a business the way an acquirer would, or building valuation multiples that shouldn't be skewed by how a company is financed. Enterprise value pairs naturally with operating figures like EBITDA, while market cap pairs with equity figures like earnings — the P/E ratio.
Neither, on its own. They measure different things. Market cap is the right tool for sizing and ranking companies, which is why it anchors MarketCapLens. Enterprise value is the right tool when debt and cash change the story. Knowing which lens you are using keeps your comparisons honest. New to the basics? Start with What Is Market Capitalization?
Damodaran’s discounted cash flow lecture (opens in a new tab) separates cash flow to the firm from cash flow to equity. That is the same split as equity value versus enterprise value. MarketCapLens ranks by equity market cap; enterprise value is shown on company pages when the snapshot has debt and cash.
For general education only. Nothing here is investment advice.
Formulas and worked examples are MarketCapLens's. See who checks the numbers.