BELFA vs KN: Correlation
Bel Fuse Inc. (BELFA) and Knowles Corporation (KN) show a moderate relationship: their 3-year correlation of weekly returns is 0.57.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BELFA and KN?
Over the past 3 years, BELFA and KN moved with a correlation of 0.57, which is moderate. The link has tightened recently: the 1-year correlation (0.71) runs above the 3-year figure (0.57). Over 5 years the correlation is 0.47, and the annualized covariance of weekly returns is 1013.0 %².
Few assets follow BELFA as closely as KN, which ranks #2 of 10 tracked partners. Correlation aside, the last 12 months split them widely, with BELFA ahead by 18.6 points (+80.5% versus +61.9%).
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.
BELFA vs KN: side by side
| BELFA (Bel Fuse Inc.) | KN (Knowles Corporation) | |
|---|---|---|
| 1-year return | +80.5% | +61.9% |
| 5-year return | +1292.5% | +73.8% |
| Volatility (ann.) | 48.6% | 36.5% |
| Beta vs S&P 500 | 1.30 | 1.65 |
| Max drawdown (3Y) | -43.4% | -38.0% |
| Market cap | $3.1B | $3.0B |
| P/E (trailing) | 54.3 | 41.1 |
| Dividend yield | 0.11% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BELFA | KN |
|---|---|---|
| 2022 | +117.0% | -29.7% |
| 2023 | +102.0% | +9.1% |
| 2024 | +39.8% | +11.3% |
| 2025 | +69.0% | +7.5% |
| 2026 | +40.6% | +63.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BELFA and KN good diversifiers for each other?
Somewhat, no more. With 0.57 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between BELFA and KN?
Using weekly returns as of 2026-08-27: 0.57 over 3 years, with 0.71 over the last year and 0.47 over 5 years.
Is KN a good diversifier for BELFA?
Somewhat, no more. With 0.57 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.57 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/belfa-vs-kn.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/belfa-vs-kn/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BELFA correlations · KN correlations
