DSWL vs ZUMZ: Correlation
How closely do Deswell Industries, Inc. (DSWL) and Zumiez Inc. (ZUMZ) trade together? Their weekly returns over three years give a correlation of 0.39, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DSWL and ZUMZ?
Over the past 3 years, DSWL and ZUMZ moved with a correlation of 0.39, which is moderate. Little has changed lately, as the 1-year reading of 0.32 lands near the 3-year figure. Over 5 years the correlation is 0.34, and the annualized covariance of weekly returns is 593.8 %².
Few assets follow DSWL as closely as ZUMZ, which ranks #1 of 10 tracked partners. On 12-month performance ZUMZ holds a 7.1-point edge, -10.4% against -3.3%. One caveat on sizing: ZUMZ is 1.7 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
DSWL vs ZUMZ: side by side
| DSWL (Deswell Industries, Inc.) | ZUMZ (Zumiez Inc.) | |
|---|---|---|
| 1-year return | -10.4% | -3.3% |
| 5-year return | +0.8% | -57.5% |
| Volatility (ann.) | 30.4% | 50.2% |
| Beta vs S&P 500 | 0.34 | 1.20 |
| Max drawdown (3Y) | -29.5% | -60.2% |
| Market cap | – | $0.3B |
| P/E (trailing) | 4.6 | 24.5 |
| Dividend yield | 6.45% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | DSWL | ZUMZ |
|---|---|---|
| 2022 | -14.1% | -54.7% |
| 2023 | -8.3% | -6.4% |
| 2024 | -2.9% | -5.8% |
| 2025 | +54.7% | +35.9% |
| 2026 | -5.7% | -32.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DSWL and ZUMZ good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.39 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between DSWL and ZUMZ?
The DSWL/ZUMZ correlation stands at 0.39 on a 3-year window (1 year: 0.32, 5 years: 0.34), computed from weekly returns as of 2026-08-27.
Is ZUMZ a good diversifier for DSWL?
Yes, to a useful degree: a correlation of 0.39 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.39 mean?
On the −1 to +1 scale, 0.39 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.
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Related comparisons
Hubs: DSWL correlations · ZUMZ correlations
