KOSS vs SIRI: Correlation
Koss Corporation (KOSS) and SiriusXM Holdings Inc. (SIRI) show a moderate relationship: their 3-year correlation of weekly returns is 0.44.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KOSS and SIRI?
On 3 years of weekly data the KOSS/SIRI correlation comes out at 0.44, moderate. The relationship has been stable: the 1-year correlation (0.44) sits close to the 3-year figure. The 5-year figure is 0.35, and annualized covariance runs at 2690.5 %².
SIRI is one of the assets that tracks KOSS most closely: it ranks #2 out of the 12 assets we track against KOSS. The last year tells two different stories: SIRI led by 72.5 percentage points, -46.6% for KOSS against +25.9% for SIRI. Risk is not evenly split, since KOSS carries 2.8 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.
KOSS vs SIRI: side by side
| KOSS (Koss Corporation) | SIRI (SiriusXM Holdings Inc.) | |
|---|---|---|
| 1-year return | -46.6% | +25.9% |
| 5-year return | -81.0% | -45.1% |
| Volatility (ann.) | 129.9% | 46.6% |
| Beta vs S&P 500 | 1.64 | 1.30 |
| Max drawdown (3Y) | -74.4% | -64.5% |
| Market cap | – | $9.6B |
| P/E (trailing) | – | 11.4 |
| Dividend yield | 0.00% | 3.79% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | KOSS | SIRI |
|---|---|---|
| 2022 | -53.7% | -3.2% |
| 2023 | -32.3% | -4.3% |
| 2024 | +120.3% | -56.9% |
| 2025 | -43.9% | -8.0% |
| 2026 | -17.4% | +47.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KOSS and SIRI good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.44 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between KOSS and SIRI?
The KOSS/SIRI correlation stands at 0.44 on a 3-year window (1 year: 0.44, 5 years: 0.35), computed from weekly returns as of 2026-08-27.
Is SIRI a good diversifier for KOSS?
Yes, to a useful degree: a correlation of 0.44 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.44 mean?
A reading of 0.44 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: KOSS correlations · SIRI correlations
