AME vs ROK: Correlation
Ametek (AME) and Rockwell Automation (ROK) show a moderate relationship: their 3-year correlation of weekly returns is 0.49.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AME and ROK?
Across a 3-year window, the weekly returns of AME and ROK correlate at 0.49, moderate. Little has changed lately, as the 1-year reading of 0.46 lands near the 3-year figure. Stretching to 5 years gives 0.62, with an annualized covariance of 282.0 %².
By 3-year correlation, ROK places #21 of the 31 assets tracked against AME. On 12-month performance AME holds a 5.7-point edge, +31.4% against +25.7%. Across three years, the rolling one-year figure varied moderately, from 0.37 to 0.71.
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.
AME vs ROK: side by side
| AME (Ametek) | ROK (Rockwell Automation) | |
|---|---|---|
| 1-year return | +31.4% | +25.7% |
| 5-year return | +83.6% | +44.9% |
| Volatility (ann.) | 20.4% | 27.9% |
| Beta vs S&P 500 | 0.84 | 0.97 |
| Max drawdown (3Y) | -23.0% | -29.0% |
| Market cap | $55.9B | $48.2B |
| P/E (trailing) | 35.8 | 40.6 |
| Dividend yield | 0.53% | 1.26% |
| Sector / category | Industrials | Industrials |
Year-by-year returns
| Year | AME | ROK |
|---|---|---|
| 2022 | -4.3% | -24.8% |
| 2023 | +18.8% | +22.6% |
| 2024 | +10.0% | -6.2% |
| 2025 | +14.7% | +38.4% |
| 2026 | +19.1% | +12.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AME and ROK good diversifiers for each other?
A fair diversifier. At 0.49, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between AME and ROK?
Using weekly returns as of 2026-08-27: 0.49 over 3 years, with 0.46 over the last year and 0.62 over 5 years.
Is ROK a good diversifier for AME?
A fair diversifier. At 0.49, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.49 mean?
On the −1 to +1 scale, 0.49 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ame-vs-rok.json
Embed this badge (it refreshes with the data), with attribution:
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Related comparisons
Hubs: AME correlations · ROK correlations
