As of January 2026 Extra Space Storage has a market cap of A$46.11 Billion. This makes Extra Space Storage the world's 792th 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 Jan 11th, 2026 the market cap of Extra Space Storage was reported to be: