As of December 2025 Extra Space Storage has a market cap of โน2.582 Trillion. This makes Extra Space Storage the world's 801th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Dec 4th, 2025 the market cap of Extra Space Storage was reported to be: