NFJ vs ROK: Correlation
Virtus Dividend, Interest & Premium Strategy Fund (NFJ) and Rockwell Automation (ROK) show a strong relationship: their 3-year correlation of weekly returns is 0.61.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NFJ and ROK?
Across a 3-year window, the weekly returns of NFJ and ROK correlate at 0.61, strong. The link has loosened recently: the 1-year correlation (0.50) runs below the 3-year figure (0.61). Stretching to 5 years gives 0.65, with an annualized covariance of 234.2 %².
Among the 34 assets we track against NFJ, ROK ranks #19 by 3-year correlation. On 12-month performance NFJ holds a 5.3-point edge, +31.0% against +25.7%. 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.
NFJ vs ROK: side by side
| NFJ (Virtus Dividend, Interest & Premium Strategy Fund) | ROK (Rockwell Automation) | |
|---|---|---|
| 1-year return | +31.0% | +25.7% |
| 5-year return | +50.8% | +44.9% |
| Volatility (ann.) | 13.8% | 27.9% |
| Beta vs S&P 500 | 0.73 | 0.97 |
| Max drawdown (3Y) | -17.0% | -29.0% |
| Market cap | $1.5B | $48.2B |
| P/E (trailing) | 9.8 | 40.6 |
| Dividend yield | 7.83% | 1.26% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | NFJ | ROK |
|---|---|---|
| 2022 | -23.9% | -24.8% |
| 2023 | +21.3% | +22.6% |
| 2024 | +10.0% | -6.2% |
| 2025 | +12.4% | +38.4% |
| 2026 | +26.1% | +12.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NFJ and ROK good diversifiers for each other?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between NFJ and ROK?
The NFJ/ROK correlation stands at 0.61 on a 3-year window (1 year: 0.50, 5 years: 0.65), computed from weekly returns as of 2026-08-27.
Is ROK a good diversifier for NFJ?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.61 mean?
On the −1 to +1 scale, 0.61 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/nfj-vs-rok.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/nfj-vs-rok/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: NFJ correlations · ROK correlations
