PENTAIR market cap PNR
Share price times shares outstanding: what the whole company sells for, since 2010.
- Today, Oct 23, 2026
- $8.8B
- Highest close in our data
- $18.4B
- Oct 2025
PENTAIR is worth $8.8B at the close on Oct 23, 2026, at $55.30 a share.
That is down 51% over the last year and down 28% over five years.
Its highest close in our data was $18.4B in Oct 2025.
Market cap over time
Year by year
| Year | End of year | Low | High | Change |
|---|---|---|---|---|
| 2026 so far | $8.8B | $8.4B | $17.6B | −49% |
| 2025 | $17.3B | $13B | $18.4B | +3% |
| 2024 | $16.7B | $11.4B | $18B | +39% |
| 2023 | $12B | $7.7B | $12B | +62% |
| 2022 | $7.4B | $6.5B | $11.5B | −39% |
| 2021 | $12.1B | $8.9B | $13.2B | +37% |
| 2020 | $8.8B | $4B | $9B | +15% |
| 2019 | $7.7B | $5.9B | $7.7B | +19% |
| 2018 | $6.5B | $6.4B | $9B | −25% |
| 2017 | $8.6B | $7.1B | $8.7B | +26% |
| 2016 | $6.8B | $5.3B | $8B | +14% |
| 2015 | $6B | $5.8B | $8.5B | −29% |
| 2014 | $8.4B | $7.5B | $11B | −19% |
| 2013 | $10.4B | $7B | $10.4B | +55% |
| 2012 | $6.7B | $2.3B | $6.8B | +205% |
| 2011 | $2.2B | $2B | $2.8B | −9% |
| 2010 | $2.4B | $2.1B | $2.4B | n/a |
Against its peers
Companies in Industrial - Machinery nearest PENTAIR's size, closest first, today.
| Company | Market cap |
|---|---|
| PNRPENTAIR | $8.8B |
| FLSFlowserve | $8.7B |
| AYIAcuity Inc. (de) | $9.5B |
| ZWSZurn Elkay Water Solutions | $8.1B |
| SPXCSPX Technologies | $8B |
| ONTOOnto Innovation | $9.8B |
| DCIDONALDSON Co INC | $9.8B |
| RRXRegal Rexnord | $9.9B |
| TTCToro | $10B |
| TKRTimken | $7.6B |
| CRCrane | $10.6B |
| Peer median | $9.6B |
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 PENTAIR
Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.