iRhythm (ZIO) (IRTC) - Market capitalization

Market cap: C$7.93 Billion

As of December 2025 iRhythm (ZIO) has a market cap of C$7.93 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.

Market cap history of iRhythm (ZIO) from 2016 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	C$7.93 B	99.07%
2024	C$3.98 B	-8.35%
2023	C$4.35 B	13.7%
2022	C$3.82 B	-13.28%
2021	C$4.41 B	-49.46%
2020	C$8.73 B	268.01%
2019	C$2.37 B	2.89%
2018	C$2.30 B	42.41%
2017	C$1.61 B	81.54%
2016	C$0.89 B

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of iRhythm (ZIO) (IRTC)

Market cap: C$7.93 Billion