ACWI vs ROK: Correlation
Measured on weekly returns over the past three years, iShares MSCI ACWI ETF (ACWI) and Rockwell Automation (ROK) carry a correlation of 0.55, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACWI and ROK?
Across a 3-year window, the weekly returns of ACWI and ROK correlate at 0.55, moderate. The relationship has been stable: the 1-year correlation (0.59) sits close to the 3-year figure. Stretching to 5 years gives 0.64, with an annualized covariance of 212.2 %².
Within ACWI's tracked universe of 119 assets, ROK comes in at #83 by 3-year correlation. Neither side won the trailing year by much: +22.7% against +25.7%. The rolling one-year correlation moved between 0.43 and 0.80 over the past three years, a moderate range. Risk is not evenly split, since ROK carries 2.0 times the volatility of the other side.
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.
ACWI vs ROK: side by side
| ACWI (iShares MSCI ACWI ETF) | ROK (Rockwell Automation) | |
|---|---|---|
| 1-year return | +22.7% | +25.7% |
| 5-year return | +69.0% | +44.9% |
| Volatility (ann.) | 13.8% | 27.9% |
| Beta vs S&P 500 | 0.92 | 0.97 |
| Max drawdown (3Y) | -16.5% | -29.0% |
| Market cap | – | $48.2B |
| P/E (trailing) | – | 40.6 |
| Dividend yield | 1.44% | 1.26% |
| Expense ratio | 0.32% | – |
| Assets under management | $32.5B | – |
| Sector / category | ETF · Global | Industrials |
ACWI is a Global Large-Stock Blend fund from iShares: $32.5B under management, 1590 holdings, a 0.32% expense ratio, a 1.44% trailing dividend yield.
Year-by-year returns
| Year | ACWI | ROK |
|---|---|---|
| 2022 | -18.4% | -24.8% |
| 2023 | +22.3% | +22.6% |
| 2024 | +17.4% | -6.2% |
| 2025 | +22.4% | +38.4% |
| 2026 | +14.9% | +12.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
ROK represents 0.05% of ACWI's portfolio, so part of any move in ACWI is ROK itself, and the correlation between them is partly mechanical.
Are ACWI and ROK good diversifiers for each other?
Somewhat, no more. With 0.55 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between ACWI and ROK?
The ACWI/ROK correlation stands at 0.55 on a 3-year window (1 year: 0.59, 5 years: 0.64), computed from weekly returns as of 2026-08-27.
Is ROK a good diversifier for ACWI?
Somewhat, no more. With 0.55 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.55 mean?
A reading of 0.55 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/acwi-vs-rok.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/acwi-vs-rok/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACWI correlations · ROK correlations
