EMR vs ROK: Correlation
How closely do Emerson Electric (EMR) and Rockwell Automation (ROK) trade together? Their weekly returns over three years give a correlation of 0.58, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EMR and ROK?
Across a 3-year window, the weekly returns of EMR and ROK correlate at 0.58, moderate. Little has changed lately, as the 1-year reading of 0.54 lands near the 3-year figure. Stretching to 5 years gives 0.60, with an annualized covariance of 455.4 %².
Among the 47 assets we track against EMR, ROK ranks #25 by 3-year correlation. On 12-month performance ROK holds a 5.7-point edge, +20.0% against +25.7%. On a rolling one-year basis the correlation drifted between 0.45 and 0.73, a moderate band.
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.
EMR vs ROK: side by side
| EMR (Emerson Electric) | ROK (Rockwell Automation) | |
|---|---|---|
| 1-year return | +20.0% | +25.7% |
| 5-year return | +65.4% | +44.9% |
| Volatility (ann.) | 28.3% | 27.9% |
| Beta vs S&P 500 | 1.29 | 0.97 |
| Max drawdown (3Y) | -29.6% | -29.0% |
| Market cap | $88.0B | $48.2B |
| P/E (trailing) | 34.5 | 40.6 |
| Dividend yield | 1.39% | 1.26% |
| Sector / category | Industrials | Industrials |
Year-by-year returns
| Year | EMR | ROK |
|---|---|---|
| 2022 | +5.7% | -24.8% |
| 2023 | +3.8% | +22.6% |
| 2024 | +29.7% | -6.2% |
| 2025 | +8.9% | +38.4% |
| 2026 | +20.2% | +12.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EMR and ROK good diversifiers for each other?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between EMR and ROK?
The EMR/ROK correlation stands at 0.58 on a 3-year window (1 year: 0.54, 5 years: 0.60), computed from weekly returns as of 2026-08-27.
Is ROK a good diversifier for EMR?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.58 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/emr-vs-rok.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/emr-vs-rok/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: EMR correlations · ROK correlations
