As of April 2026 Southern Company has a market cap of NZ$178.86 Billion. This makes Southern Company the world's 218th 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 Apr 20th, 2026 the market cap of Southern Company was reported to be: