As of December 2025 Summit Midstream has a market cap of NZ$0.59 Billion. This makes Summit Midstream the world's 7778th 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 8th, 2025 the market cap of Summit Midstream was reported to be: