SuperworthiRhythm market cap IRTC
Share price times shares outstanding: what the whole company sells for, since 2016.
- Today, Oct 23, 2026
- $4B
- Highest close in our data
- $7.5B
- Nov 2020
iRhythm is worth $4B at the close on Oct 23, 2026, at $121.27 a share.
That is down 31% over the last year and up 94% over five years.
Its highest close in our data was $7.5B in Nov 2020.
Market cap over time
Year by year
| Year | End of year | Low | High | Change |
|---|---|---|---|---|
| 2026 so far | $4B | $3.4B | $5.8B | −30% |
| 2025 | $5.7B | $2.8B | $6.1B | +105% |
| 2024 | $2.8B | $1.8B | $3.7B | −15% |
| 2023 | $3.3B | $2.2B | $4.2B | +16% |
| 2022 | $2.8B | $2.8B | $4.8B | −19% |
| 2021 | $3.5B | $1.3B | $7.3B | −49% |
| 2020 | $6.8B | $1.8B | $7.5B | +289% |
| 2019 | $1.8B | $1.5B | $2.4B | +6% |
| 2018 | $1.7B | $1.3B | $2.3B | +29% |
| 2017 | $1.3B | $663.6M | $1.3B | +94% |
| 2016 | $663.8M | $591.7M | $663.8M | n/a |
Against its peers
Companies in Medical - Instruments & Supplies nearest iRhythm's size, closest first, today.
| Company | Market cap |
|---|---|
| IRTCiRhythm | $4B |
| ICUIICU Medical | $4.2B |
| NVSTEnvista | $3.8B |
| BMIBadger Meter | $4.4B |
| VNTVontier | $4.6B |
| WRBYWarby Parker | $3.2B |
| ATRCAtriCure | $3B |
| HAEHaemonetics | $5.4B |
| MMSIMerit Medical Systems | $5.6B |
| UFPTUFP Technologies | $2.3B |
| MSAMSA Safety | $7B |
| Peer median | $4.3B |
What the market cap tells you
Share price times shares outstanding: what the whole company sells for today.
Size, not quality. Large caps move slower and are covered more. That is all it tells you.
More on iRhythm
Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.