|Company||Market Cap (USD)|
|Public Storage||$69.31 B|
|Extra Space Storage Inc.||$27.37 B|
|Duke Realty Corporation||$21.93 B|
|SEGRO plc||$21.08 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.