DIA vs PNR: Correlation
SPDR Dow Jones Industrial Average ETF (DIA) and Pentair (PNR) show a moderate relationship: their 3-year correlation of weekly returns is 0.59.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DIA and PNR?
Across a 3-year window, the weekly returns of DIA and PNR correlate at 0.59, moderate. The link has loosened recently: the 1-year correlation (0.31) runs below the 3-year figure (0.59). Stretching to 5 years gives 0.63, with an annualized covariance of 218.5 %².
Among the 116 assets we track against DIA, PNR ranks #67 by 3-year correlation. Correlation aside, the last 12 months split them widely, with DIA ahead by 61.7 points (+19.2% versus -42.5%). This link changes with the market regime, having swung between 0.28 and 0.82 on a rolling one-year basis. One caveat on sizing: PNR is 2.2 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
DIA vs PNR: side by side
| DIA (SPDR Dow Jones Industrial Average ETF) | PNR (Pentair) | |
|---|---|---|
| 1-year return | +19.2% | -42.5% |
| 5-year return | +64.8% | -14.1% |
| Volatility (ann.) | 13.0% | 28.2% |
| Beta vs S&P 500 | 0.79 | 1.07 |
| Max drawdown (3Y) | -16.0% | -45.0% |
| Market cap | – | $9.9B |
| P/E (trailing) | – | 16.2 |
| Dividend yield | 1.37% | 1.65% |
| Expense ratio | 0.16% | – |
| Assets under management | $45.2B | – |
| Sector / category | ETF · US Large Cap | Industrials |
DIA is a Large Value fund from State Street Investment Management: $45.2B under management, 30 holdings, a 0.16% expense ratio, a 1.37% trailing dividend yield.
Year-by-year returns
| Year | DIA | PNR |
|---|---|---|
| 2022 | -7.0% | -37.4% |
| 2023 | +16.0% | +64.2% |
| 2024 | +14.8% | +40.0% |
| 2025 | +14.7% | +4.5% |
| 2026 | +12.3% | -39.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DIA and PNR good diversifiers for each other?
To a limited degree. At 0.59 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between DIA and PNR?
As of 2026-08-27, the correlation of weekly returns between DIA and PNR is 0.59 over 3 years, 0.31 over 1 year and 0.63 over 5 years.
Is PNR a good diversifier for DIA?
To a limited degree. At 0.59 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.59 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/dia-vs-pnr.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/dia-vs-pnr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: DIA correlations · PNR correlations
