KOSS vs QQQ: Correlation
Measured on weekly returns over the past three years, Koss Corporation (KOSS) and Invesco QQQ Trust (QQQ) carry a correlation of 0.20, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KOSS and QQQ?
Over the past 3 years, KOSS and QQQ moved with a correlation of 0.20, which is weak. The link has tightened recently: the 1-year correlation (0.44) runs above the 3-year figure (0.20). Over 5 years the correlation is 0.26, and the annualized covariance of weekly returns is 515.1 %².
Within KOSS's tracked universe of 12 assets, QQQ comes in at #7 by 3-year correlation. The last year tells two different stories: QQQ led by 72.9 percentage points, -46.6% for KOSS against +26.3% for QQQ. Note the risk asymmetry: KOSS runs 6.6 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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 QQQ: side by side
| KOSS (Koss Corporation) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -46.6% | +26.3% |
| 5-year return | -81.0% | +95.4% |
| Volatility (ann.) | 129.9% | 19.6% |
| Beta vs S&P 500 | 1.64 | 1.28 |
| Max drawdown (3Y) | -74.4% | -22.8% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | US Listed | ETF · US Growth & Tech |
QQQ is a Large Growth fund from Invesco: $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | KOSS | QQQ |
|---|---|---|
| 2022 | -53.7% | -32.6% |
| 2023 | -32.3% | +54.9% |
| 2024 | +120.3% | +25.6% |
| 2025 | -43.9% | +20.8% |
| 2026 | -17.4% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KOSS and QQQ good diversifiers for each other?
A fair diversifier. At 0.20, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between KOSS and QQQ?
The KOSS/QQQ correlation stands at 0.20 on a 3-year window (1 year: 0.44, 5 years: 0.26), computed from weekly returns as of 2026-08-27.
Is QQQ a good diversifier for KOSS?
A fair diversifier. At 0.20, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.20 mean?
A reading of 0.20 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/koss-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/koss-vs-qqq/)
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Related comparisons
Hubs: KOSS correlations · QQQ correlations
