GGG vs PCAR: Correlation
How closely do Graco Inc. (GGG) and Paccar (PCAR) trade together? Their weekly returns over three years give a correlation of 0.54, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GGG and PCAR?
Across a 3-year window, the weekly returns of GGG and PCAR correlate at 0.54, moderate. Recent behaviour matches the longer record: 0.58 over 1 year against 0.54 over 3. Stretching to 5 years gives 0.58, with an annualized covariance of 248.0 %².
Among the 26 assets we track against GGG, PCAR ranks #20 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months PCAR outperformed by 35.0 percentage points (-7.2% for GGG against +27.8% for PCAR).
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.
GGG vs PCAR: side by side
| GGG (Graco Inc.) | PCAR (Paccar) | |
|---|---|---|
| 1-year return | -7.2% | +27.8% |
| 5-year return | +7.7% | +177.9% |
| Volatility (ann.) | 19.0% | 24.1% |
| Beta vs S&P 500 | 0.70 | 0.74 |
| Max drawdown (3Y) | -22.6% | -27.7% |
| Market cap | $12.9B | $66.6B |
| P/E (trailing) | 25.0 | 26.6 |
| Dividend yield | 1.46% | 1.04% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | GGG | PCAR |
|---|---|---|
| 2022 | -15.5% | +17.0% |
| 2023 | +30.6% | +55.0% |
| 2024 | -1.7% | +10.8% |
| 2025 | -1.5% | +8.0% |
| 2026 | -1.8% | +16.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GGG and PCAR good diversifiers for each other?
Only partially. A correlation of 0.54 means GGG and PCAR share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between GGG and PCAR?
The GGG/PCAR correlation stands at 0.54 on a 3-year window (1 year: 0.58, 5 years: 0.58), computed from weekly returns as of 2026-08-27.
Is PCAR a good diversifier for GGG?
Only partially. A correlation of 0.54 means GGG and PCAR share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.54 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/ggg-vs-pcar.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ggg-vs-pcar/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: GGG correlations · PCAR correlations
