BELFB vs FOXF: Correlation
Bel Fuse Inc. (BELFB) and Fox Factory Holding Corp. (FOXF) show a moderate relationship: their 3-year correlation of weekly returns is 0.52.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BELFB and FOXF?
On 3 years of weekly data the BELFB/FOXF correlation comes out at 0.52, moderate. Little has changed lately, as the 1-year reading of 0.43 lands near the 3-year figure. The 5-year figure is 0.43, and annualized covariance runs at 1326.7 %².
Within BELFB's tracked universe of 14 assets, FOXF comes in at #6 by 3-year correlation. Correlation aside, the last 12 months split them widely, with BELFB ahead by 112.7 points (+83.7% versus -29.0%).
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 FOXF: side by side
| BELFB (Bel Fuse Inc.) | FOXF (Fox Factory Holding Corp.) | |
|---|---|---|
| 1-year return | +83.7% | -29.0% |
| 5-year return | +1827.0% | -86.3% |
| Volatility (ann.) | 49.1% | 52.1% |
| Beta vs S&P 500 | 1.30 | 1.04 |
| Max drawdown (3Y) | -33.4% | -88.1% |
| Market cap | $3.7B | $0.9B |
| P/E (trailing) | 65.2 | – |
| Dividend yield | 0.09% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BELFB | FOXF |
|---|---|---|
| 2022 | +158.7% | -46.4% |
| 2023 | +104.2% | -26.0% |
| 2024 | +24.0% | -55.1% |
| 2025 | +106.3% | -43.5% |
| 2026 | +52.0% | +23.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BELFB and FOXF good diversifiers for each other?
To a limited degree. At 0.52 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between BELFB and FOXF?
As of 2026-08-27, the correlation of weekly returns between BELFB and FOXF is 0.52 over 3 years, 0.43 over 1 year and 0.43 over 5 years.
Is FOXF a good diversifier for BELFB?
To a limited degree. At 0.52 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.52 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/belfb-vs-foxf.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/belfb-vs-foxf/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BELFB correlations · FOXF correlations
