KN vs LFUS: Correlation
How closely do Knowles Corporation (KN) and Littelfuse, Inc. (LFUS) trade together? Their weekly returns over three years give a correlation of 0.69, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KN and LFUS?
On 3 years of weekly data the KN/LFUS correlation comes out at 0.69, strong. The relationship has been stable: the 1-year correlation (0.74) sits close to the 3-year figure. The 5-year figure is 0.64, and annualized covariance runs at 891.3 %².
By 3-year correlation, LFUS places #6 of the 30 assets tracked against KN. Neither side won the trailing year by much: +61.9% against +62.0%.
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.
KN vs LFUS: side by side
| KN (Knowles Corporation) | LFUS (Littelfuse, Inc.) | |
|---|---|---|
| 1-year return | +61.9% | +62.0% |
| 5-year return | +73.8% | +53.7% |
| Volatility (ann.) | 36.5% | 35.3% |
| Beta vs S&P 500 | 1.65 | 1.44 |
| Max drawdown (3Y) | -38.0% | -45.0% |
| Market cap | $3.0B | $10.7B |
| P/E (trailing) | 41.1 | – |
| Dividend yield | 0.00% | 0.72% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | KN | LFUS |
|---|---|---|
| 2022 | -29.7% | -29.4% |
| 2023 | +9.1% | +22.7% |
| 2024 | +11.3% | -11.0% |
| 2025 | +7.5% | +8.6% |
| 2026 | +63.1% | +67.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KN and LFUS good diversifiers for each other?
To a limited degree. At 0.69 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 KN and LFUS?
As of 2026-08-27, the correlation of weekly returns between KN and LFUS is 0.69 over 3 years, 0.74 over 1 year and 0.64 over 5 years.
Is LFUS a good diversifier for KN?
To a limited degree. At 0.69 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 0.69 mean?
On the −1 to +1 scale, 0.69 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/kn-vs-lfus.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/kn-vs-lfus/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: KN correlations · LFUS correlations
