As of September 2026 DexCom has a market cap of โน3.130 Trillion. This makes DexCom the world's 775th 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 Sep 15th, 2026 the market cap of DexCom was reported to be: