FEIM vs NX: Correlation
How closely do Frequency Electronics, Inc. (FEIM) and Quanex Building Products Corporation (NX) trade together? Their weekly returns over three years give a correlation of 0.39, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FEIM and NX?
On 3 years of weekly data the FEIM/NX correlation comes out at 0.39, moderate. The link has tightened recently: the 1-year correlation (0.55) runs above the 3-year figure (0.39). The 5-year figure is 0.32, and annualized covariance runs at 1361.9 %².
Within FEIM's tracked universe of 13 assets, NX comes in at #4 by 3-year correlation. The last year tells two different stories: FEIM led by 105.4 percentage points, +97.0% for FEIM against -8.4% for NX.
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.
FEIM vs NX: side by side
| FEIM (Frequency Electronics, Inc.) | NX (Quanex Building Products Corporation) | |
|---|---|---|
| 1-year return | +97.0% | -8.4% |
| 5-year return | +639.1% | -10.0% |
| Volatility (ann.) | 70.8% | 49.4% |
| Beta vs S&P 500 | 1.11 | 1.11 |
| Max drawdown (3Y) | -33.0% | -70.4% |
| Market cap | $0.7B | $0.9B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 1.61% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FEIM | NX |
|---|---|---|
| 2022 | -29.4% | -3.1% |
| 2023 | +80.9% | +30.7% |
| 2024 | +83.2% | -19.9% |
| 2025 | +190.7% | -35.4% |
| 2026 | +18.7% | +29.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FEIM and NX good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.39 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between FEIM and NX?
As of 2026-08-27, the correlation of weekly returns between FEIM and NX is 0.39 over 3 years, 0.55 over 1 year and 0.32 over 5 years.
Is NX a good diversifier for FEIM?
Yes, to a useful degree: a correlation of 0.39 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.39 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/feim-vs-nx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/feim-vs-nx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: FEIM correlations · NX correlations
