OSS vs QQQ: Correlation
How closely do One Stop Systems, Inc. (OSS) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.35, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OSS and QQQ?
Across a 3-year window, the weekly returns of OSS and QQQ correlate at 0.35, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.54 versus 0.35 over 3 years. Stretching to 5 years gives 0.31, with an annualized covariance of 567.3 %².
Within OSS's tracked universe of 16 assets, QQQ comes in at #6 by 3-year correlation. The last year tells two different stories: OSS led by 54.2 percentage points, +80.5% for OSS against +26.3% for QQQ. Note the risk asymmetry: OSS runs 4.2 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.
OSS vs QQQ: side by side
| OSS (One Stop Systems, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +80.5% | +26.3% |
| 5-year return | +103.2% | +95.4% |
| Volatility (ann.) | 82.4% | 19.6% |
| Beta vs S&P 500 | 1.82 | 1.28 |
| Max drawdown (3Y) | -56.0% | -22.8% |
| Market cap | $0.3B | – |
| 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 | OSS | QQQ |
|---|---|---|
| 2022 | -39.2% | -32.6% |
| 2023 | -30.2% | +54.9% |
| 2024 | +59.5% | +25.6% |
| 2025 | +114.3% | +20.8% |
| 2026 | +57.7% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OSS and QQQ good diversifiers for each other?
Reasonably. At 0.35, OSS and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between OSS and QQQ?
As of 2026-08-27, the correlation of weekly returns between OSS and QQQ is 0.35 over 3 years, 0.54 over 1 year and 0.31 over 5 years.
Is QQQ a good diversifier for OSS?
Reasonably. At 0.35, OSS and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.35 mean?
A reading of 0.35 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/oss-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/oss-vs-qqq/)
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Related comparisons
Hubs: OSS correlations · QQQ correlations
