BELFB vs KN: Correlation
How closely do Bel Fuse Inc. (BELFB) and Knowles Corporation (KN) trade together? Their weekly returns over three years give a correlation of 0.55, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BELFB and KN?
Over the past 3 years, BELFB and KN moved with a correlation of 0.55, which is moderate. The link has tightened recently: the 1-year correlation (0.70) runs above the 3-year figure (0.55). Over 5 years the correlation is 0.48, and the annualized covariance of weekly returns is 991.9 %².
By 3-year correlation, KN places #5 of the 14 assets tracked against BELFB. The last year tells two different stories: BELFB led by 21.8 percentage points, +83.7% for BELFB against +61.9% for KN.
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.
BELFB vs KN: side by side
| BELFB (Bel Fuse Inc.) | KN (Knowles Corporation) | |
|---|---|---|
| 1-year return | +83.7% | +61.9% |
| 5-year return | +1827.0% | +73.8% |
| Volatility (ann.) | 49.1% | 36.5% |
| Beta vs S&P 500 | 1.30 | 1.65 |
| Max drawdown (3Y) | -33.4% | -38.0% |
| Market cap | $3.7B | $3.0B |
| P/E (trailing) | 65.2 | 41.1 |
| Dividend yield | 0.09% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BELFB | KN |
|---|---|---|
| 2022 | +158.7% | -29.7% |
| 2023 | +104.2% | +9.1% |
| 2024 | +24.0% | +11.3% |
| 2025 | +106.3% | +7.5% |
| 2026 | +52.0% | +63.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BELFB and KN 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 BELFB and KN?
The BELFB/KN correlation stands at 0.55 on a 3-year window (1 year: 0.70, 5 years: 0.48), computed from weekly returns as of 2026-08-27.
Is KN a good diversifier for BELFB?
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?
On the −1 to +1 scale, 0.55 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/belfb-vs-kn.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/belfb-vs-kn/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BELFB correlations · KN correlations
