|Company||Market Cap (USD)|
|American Tower||$115.11 B|
|Crown Castle International Corp. (REIT)||$80.92 B|
|Equinix, Inc. (REIT)||$66.35 B|
|SBA Communications Corporation||$37.93 B|
|Weyerhaeuser Company||$29.42 B|
The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.