ENS vs LFUS: Correlation
How closely do EnerSys (ENS) and Littelfuse, Inc. (LFUS) trade together? Their weekly returns over three years give a correlation of 0.58, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ENS and LFUS?
Over the past 3 years, ENS and LFUS moved with a correlation of 0.58, which is moderate. Recent behaviour matches the longer record: 0.55 over 1 year against 0.58 over 3. Over 5 years the correlation is 0.58, and the annualized covariance of weekly returns is 620.1 %².
Among the 11 assets we track against ENS, LFUS ranks #4 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months ENS outperformed by 25.9 percentage points (+87.9% for ENS against +62.0% for LFUS).
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.
ENS vs LFUS: side by side
| ENS (EnerSys) | LFUS (Littelfuse, Inc.) | |
|---|---|---|
| 1-year return | +87.9% | +62.0% |
| 5-year return | +131.9% | +53.7% |
| Volatility (ann.) | 30.1% | 35.3% |
| Beta vs S&P 500 | 1.09 | 1.44 |
| Max drawdown (3Y) | -28.2% | -45.0% |
| Market cap | $6.9B | $10.7B |
| P/E (trailing) | 20.7 | – |
| Dividend yield | 0.54% | 0.72% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ENS | LFUS |
|---|---|---|
| 2022 | -5.6% | -29.4% |
| 2023 | +37.9% | +22.7% |
| 2024 | -7.6% | -11.0% |
| 2025 | +60.3% | +8.6% |
| 2026 | +30.5% | +67.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ENS and LFUS good diversifiers for each other?
To a limited degree. At 0.58 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 ENS and LFUS?
Using weekly returns as of 2026-08-27: 0.58 over 3 years, with 0.55 over the last year and 0.58 over 5 years.
Is LFUS a good diversifier for ENS?
To a limited degree. At 0.58 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 0.58 mean?
A reading of 0.58 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ens-vs-lfus.json
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Related comparisons
Hubs: ENS correlations · LFUS correlations
