As of December 2025 DT Midstream has a market cap of A$18.51 Billion. This makes DT Midstream the world's 1658th 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 7th, 2025 the market cap of DT Midstream was reported to be: