As of February 2026 Builders FirstSource has a market cap of NZ$23.00 Billion. This makes Builders FirstSource the world's 1568th 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 Feb 5th, 2026 the market cap of Builders FirstSource was reported to be: