As of December 2025 Telephone and Data Systems has a market cap of ยฃ3.39 Billion. This makes Telephone and Data Systems the world's 3227th 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 Telephone and Data Systems was reported to be: