LFUS vs SPY: Correlation
Measured on weekly returns over the past three years, Littelfuse, Inc. (LFUS) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.59, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are LFUS and SPY?
Across a 3-year window, the weekly returns of LFUS and SPY correlate at 0.59, moderate. The past 12 months show a weaker link (0.41) than the 3-year average (0.59). Stretching to 5 years gives 0.61, with an annualized covariance of 301.5 %².
By 3-year correlation, SPY places #11 of the 25 assets tracked against LFUS. Their recent paths diverged sharply: over the last 12 months LFUS outperformed by 41.4 percentage points (+62.0% for LFUS against +20.6% for SPY). Risk is not evenly split, since LFUS carries 2.4 times the volatility of the other side.
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.
LFUS vs SPY: side by side
| LFUS (Littelfuse, Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | +62.0% | +20.6% |
| 5-year return | +53.7% | +82.4% |
| Volatility (ann.) | 35.3% | 14.5% |
| Beta vs S&P 500 | 1.44 | 1.00 |
| Max drawdown (3Y) | -45.0% | -18.8% |
| Market cap | $10.7B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.72% | 1.01% |
| Expense ratio | – | 0.09% |
| Assets under management | – | $795.3B |
| Sector / category | US Listed | ETF · US Large Cap |
SPY is a Large Blend fund from State Street Investment Management: $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | LFUS | SPY |
|---|---|---|
| 2022 | -29.4% | -18.2% |
| 2023 | +22.7% | +26.2% |
| 2024 | -11.0% | +24.9% |
| 2025 | +8.6% | +17.7% |
| 2026 | +67.5% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are LFUS and SPY good diversifiers for each other?
Only partially. A correlation of 0.59 means LFUS and SPY share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between LFUS and SPY?
The LFUS/SPY correlation stands at 0.59 on a 3-year window (1 year: 0.41, 5 years: 0.61), computed from weekly returns as of 2026-08-27.
Is SPY a good diversifier for LFUS?
Only partially. A correlation of 0.59 means LFUS and SPY share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.59 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.
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Hubs: LFUS correlations · SPY correlations
