|Company||Market Cap (USD)|
|AvalonBay Communities, Inc.||$27.57 B|
|Equity Residential||$25.55 B|
|UDR, Inc.||$23.40 B|
|Invitation Homes Inc.||$21.64 B|
|Mid-America Apartment Communities, Inc.||$18.65 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.