As of December 2025 iRhythm (ZIO) has a market cap of ยฃ4.31 Billion. This makes iRhythm (ZIO) the world's 2837th 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 5th, 2025 the market cap of iRhythm (ZIO) was reported to be: