GRC vs NPO: Correlation
Gorman-Rupp Company (The) (GRC) and Enpro Inc. (NPO) show a strong relationship: their 3-year correlation of weekly returns is 0.65.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GRC and NPO?
On 3 years of weekly data the GRC/NPO correlation comes out at 0.65, strong. The relationship has been stable: the 1-year correlation (0.66) sits close to the 3-year figure. The 5-year figure is 0.62, and annualized covariance runs at 689.3 %².
In GRC's tracked universe of 14 assets, NPO sits right near the top at #3. The last year tells two different stories: GRC led by 45.3 percentage points, +82.4% for GRC against +37.1% for NPO.
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.
GRC vs NPO: side by side
| GRC (Gorman-Rupp Company (The)) | NPO (Enpro Inc.) | |
|---|---|---|
| 1-year return | +82.4% | +37.1% |
| 5-year return | +143.0% | +270.5% |
| Volatility (ann.) | 30.6% | 34.4% |
| Beta vs S&P 500 | 0.85 | 1.27 |
| Max drawdown (3Y) | -26.9% | -33.7% |
| Market cap | $2.0B | $6.5B |
| P/E (trailing) | 32.7 | 149.1 |
| Dividend yield | 0.97% | 0.41% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GRC | NPO |
|---|---|---|
| 2022 | -41.2% | -0.2% |
| 2023 | +42.2% | +45.6% |
| 2024 | +8.9% | +10.9% |
| 2025 | +28.2% | +25.0% |
| 2026 | +63.7% | +44.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GRC and NPO good diversifiers for each other?
To a limited degree. At 0.65 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 GRC and NPO?
The GRC/NPO correlation stands at 0.65 on a 3-year window (1 year: 0.66, 5 years: 0.62), computed from weekly returns as of 2026-08-27.
Is NPO a good diversifier for GRC?
To a limited degree. At 0.65 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 0.65 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/grc-vs-npo.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/grc-vs-npo/)
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Related comparisons
Hubs: GRC correlations · NPO correlations
