Market capitalisation
What the stock market values the whole company's shares at.
Market cap is the price of one share times the number of shares. It is what you would pay to buy every share at today's price, and the number every valuation ratio on this site divides into.
Common size bands: large cap above $10 billion, mid cap $2 to $10 billion, small cap $300 million to $2 billion. It leaves out debt; enterprise value adds it.
Market cap across the S&P 500 today
499 companies with a meaningful value, as of Oct 11, 2026. Full ranked list.
Highest in the S&P 500
| NVIDIA Corporation NVDA | $5.40T |
|---|---|
| Apple Inc AAPL | $4.97T |
| Alphabet Inc Class A GOOGL | $4.20T |
| Alphabet Inc Class C GOOG | $4.15T |
| Microsoft Corporation MSFT | $4.14T |
| Amazon.com Inc AMZN | $2.76T |
| Meta Platforms Inc. META | $1.78T |
| Broadcom Inc AVGO | $1.75T |
| Tesla Inc TSLA | $1.30T |
| Berkshire Hathaway Inc BRK-B | $1.10T |
Lowest in the S&P 500
| The Mosaic Company MOS | $5.6B |
|---|---|
| Norwegian Cruise Line Holdings Ltd NCLH | $6.6B |
| MGM Resorts International MGM | $7.2B |
| Smith AO Corporation AOS | $7.6B |
| Wynn Resorts Limited WYNN | $7.7B |
| Alexandria Real Estate Equities Inc ARE | $7.9B |
| Pentair PLC PNR | $8.3B |
| Corteva Inc CTVA | $8.7B |
| Aptiv PLC APTV | $9.3B |
| Federal Realty Investment Trust FRT | $9.4B |
Median market cap by sector
S&P 500 companies only. Sectors differ a lot, so compare a company with its own sector first.
| Sector | Median | Companies |
|---|---|---|
| Communication Services | $75.9B | 20 |
| Energy | $64.6B | 21 |
| Technology | $61.0B | 85 |
| Financial Services | $57.1B | 69 |
| Industrials | $54.0B | 74 |
| Basic Materials | $51.4B | 15 |
| Healthcare | $50.4B | 57 |
| Consumer Defensive | $37.2B | 30 |
| Consumer Cyclical | $30.5B | 52 |
| Utilities | $27.6B | 31 |
| Real Estate | $21.9B | 28 |
Questions
What is Market cap?
What the stock market values the whole company's shares at.
How is Market cap calculated?
Market cap = share price × shares outstanding.
What is a normal market cap?
Across 499 S&P 500 companies, the median is $45.5B; the middle half sits between $22.4B and $97.8B. It varies a lot by sector.
Live figures from the latest prices and SEC filings. Information only, not investment advice. Updated October 9, 2026.