As of January 2026 iRhythm (ZIO) has a market cap of ยฃ3.91 Billion. This makes iRhythm (ZIO) the world's 3033th 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 Jan 14th, 2026 the market cap of iRhythm (ZIO) was reported to be: