As of December 2025 Extra Space Storage has a market cap of โฌ24.65 Billion. This makes Extra Space Storage the world's 802th 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 5th, 2025 the market cap of Extra Space Storage was reported to be: