OSBC vs QQQ: Correlation
Old Second Bancorp, Inc. (OSBC) and Invesco QQQ Trust (QQQ) show a weak relationship: their 3-year correlation of weekly returns is 0.21.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OSBC and QQQ?
On 3 years of weekly data the OSBC/QQQ correlation comes out at 0.21, weak. Lately the two have drifted apart, with the 1-year correlation at -0.00 versus 0.21 over 3 years. The 5-year figure is 0.20, and annualized covariance runs at 111.9 %².
Out of 11 assets tracked against OSBC, QQQ lands near the bottom at #8. On 12-month performance OSBC holds a 11.1-point edge, +37.4% against +26.3%.
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.
OSBC vs QQQ: side by side
| OSBC (Old Second Bancorp, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +37.4% | +26.3% |
| 5-year return | +130.4% | +95.4% |
| Volatility (ann.) | 26.8% | 19.6% |
| Beta vs S&P 500 | 0.67 | 1.28 |
| Max drawdown (3Y) | -25.5% | -22.8% |
| Market cap | $1.3B | – |
| P/E (trailing) | 14.6 | – |
| Dividend yield | 1.07% | 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 | OSBC | QQQ |
|---|---|---|
| 2022 | +29.2% | -32.6% |
| 2023 | -2.4% | +54.9% |
| 2024 | +16.7% | +25.6% |
| 2025 | +11.3% | +20.8% |
| 2026 | +30.3% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OSBC and QQQ good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.21 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between OSBC and QQQ?
As of 2026-08-27, the correlation of weekly returns between OSBC and QQQ is 0.21 over 3 years, -0.00 over 1 year and 0.20 over 5 years.
Is QQQ a good diversifier for OSBC?
Yes, to a useful degree: a correlation of 0.21 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.21 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
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Related comparisons
Hubs: OSBC correlations · QQQ correlations
