ALOY vs KOPN: Correlation
Measured on weekly returns over the past three years, REalloys Inc. (ALOY) and Kopin Corporation (KOPN) carry a correlation of 0.34, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ALOY and KOPN?
Across a 3-year window, the weekly returns of ALOY and KOPN correlate at 0.34, moderate. Recent behaviour matches the longer record: 0.25 over 1 year against 0.34 over 3. Stretching to 5 years gives 0.25, with an annualized covariance of 4087.5 %².
Among the 11 assets we track against ALOY, KOPN ranks #5 by 3-year correlation. The last year tells two different stories: KOPN led by 23.1 percentage points, +100.0% for ALOY against +123.1% for KOPN.
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.
ALOY vs KOPN: side by side
| ALOY (REalloys Inc.) | KOPN (Kopin Corporation) | |
|---|---|---|
| 1-year return | +100.0% | +123.1% |
| 5-year return | -4.5% | -19.9% |
| Volatility (ann.) | 125.1% | 96.8% |
| Beta vs S&P 500 | 1.27 | 2.59 |
| Max drawdown (3Y) | -72.9% | -78.3% |
| Market cap | $0.8B | $0.9B |
| P/E (trailing) | – | 120.5 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ALOY | KOPN |
|---|---|---|
| 2022 | -91.6% | -69.7% |
| 2023 | +135.0% | +63.7% |
| 2024 | -22.0% | -33.0% |
| 2025 | +268.0% | +72.1% |
| 2026 | +41.1% | +106.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ALOY and KOPN good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.34 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between ALOY and KOPN?
Using weekly returns as of 2026-08-27: 0.34 over 3 years, with 0.25 over the last year and 0.25 over 5 years.
Is KOPN a good diversifier for ALOY?
Yes, to a useful degree: a correlation of 0.34 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.34 mean?
A reading of 0.34 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: ALOY correlations · KOPN correlations
