As of January 2026 Spire Energy has a market cap of ยฃ3.67 Billion. This makes Spire Energy the world's 3131th 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 20th, 2026 the market cap of Spire Energy was reported to be: