NSSC vs RRX: Correlation
How closely do NAPCO Security Technologies, Inc. (NSSC) and Regal Rexnord Corporation (RRX) trade together? Their weekly returns over three years give a correlation of 0.47, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NSSC and RRX?
Over the past 3 years, NSSC and RRX moved with a correlation of 0.47, which is moderate. The relationship has been stable: the 1-year correlation (0.42) sits close to the 3-year figure. Over 5 years the correlation is 0.37, and the annualized covariance of weekly returns is 1015.1 %².
Few assets follow NSSC as closely as RRX, which ranks #2 of 14 tracked partners. Their recent paths diverged sharply: over the last 12 months RRX outperformed by 15.0 percentage points (-6.8% for NSSC against +8.2% for RRX).
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.
NSSC vs RRX: side by side
| NSSC (NAPCO Security Technologies, Inc.) | RRX (Regal Rexnord Corporation) | |
|---|---|---|
| 1-year return | -6.8% | +8.2% |
| 5-year return | +91.1% | +18.1% |
| Volatility (ann.) | 51.3% | 42.0% |
| Beta vs S&P 500 | 1.46 | 1.10 |
| Max drawdown (3Y) | -65.4% | -48.1% |
| Market cap | $1.3B | $10.9B |
| P/E (trailing) | 29.6 | 34.0 |
| Dividend yield | 1.62% | 0.85% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | NSSC | RRX |
|---|---|---|
| 2022 | +10.0% | -28.7% |
| 2023 | +25.6% | +24.6% |
| 2024 | +5.0% | +5.7% |
| 2025 | +19.2% | -8.6% |
| 2026 | -14.7% | +17.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NSSC and RRX good diversifiers for each other?
Reasonably. At 0.47, NSSC and RRX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between NSSC and RRX?
Using weekly returns as of 2026-08-27: 0.47 over 3 years, with 0.42 over the last year and 0.37 over 5 years.
Is RRX a good diversifier for NSSC?
Reasonably. At 0.47, NSSC and RRX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.47 mean?
On the −1 to +1 scale, 0.47 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/nssc-vs-rrx.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/nssc-vs-rrx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: NSSC correlations · RRX correlations
