OSK vs QQQ: Correlation
Measured on weekly returns over the past three years, Oshkosh Corporation (Holding Company) (OSK) and Invesco QQQ Trust (QQQ) carry a correlation of 0.32, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OSK and QQQ?
Across a 3-year window, the weekly returns of OSK and QQQ correlate at 0.32, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.04 versus 0.32 over 3 years. Stretching to 5 years gives 0.37, with an annualized covariance of 234.2 %².
Among the 18 assets we track against OSK, QQQ sits near the bottom by co-movement, at rank #15. The last year tells two different stories: QQQ led by 15.3 percentage points, +11.0% for OSK against +26.3% for QQQ. Note the risk asymmetry: OSK runs 1.9 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.
OSK vs QQQ: side by side
| OSK (Oshkosh Corporation (Holding Company)) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +11.0% | +26.3% |
| 5-year return | +47.4% | +95.4% |
| Volatility (ann.) | 37.0% | 19.6% |
| Beta vs S&P 500 | 1.14 | 1.28 |
| Max drawdown (3Y) | -36.7% | -22.8% |
| Market cap | $9.7B | – |
| P/E (trailing) | 18.1 | – |
| Dividend yield | 1.37% | 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 | OSK | QQQ |
|---|---|---|
| 2022 | -20.5% | -32.6% |
| 2023 | +25.2% | +54.9% |
| 2024 | -10.8% | +25.6% |
| 2025 | +34.5% | +20.8% |
| 2026 | +26.2% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OSK and QQQ good diversifiers for each other?
Reasonably. At 0.32, OSK and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between OSK and QQQ?
As of 2026-08-27, the correlation of weekly returns between OSK and QQQ is 0.32 over 3 years, 0.04 over 1 year and 0.37 over 5 years.
Is QQQ a good diversifier for OSK?
Reasonably. At 0.32, OSK and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.32 mean?
A reading of 0.32 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/osk-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/osk-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: OSK correlations · QQQ correlations
