BLBD vs QQQ: Correlation
Measured on weekly returns over the past three years, Blue Bird Corporation (BLBD) and Invesco QQQ Trust (QQQ) carry a correlation of 0.24, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLBD and QQQ?
On 3 years of weekly data the BLBD/QQQ correlation comes out at 0.24, weak. The link has loosened recently: the 1-year correlation (-0.01) runs below the 3-year figure (0.24). The 5-year figure is 0.28, and annualized covariance runs at 232.6 %².
QQQ is close to the least connected end of BLBD's tracked universe, ranking #9 of 12. Correlation aside, the last 12 months split them widely, with QQQ ahead by 23.3 points (+3.0% versus +26.3%). Risk is not evenly split, since BLBD carries 2.5 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.
BLBD vs QQQ: side by side
| BLBD (Blue Bird Corporation) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +3.0% | +26.3% |
| 5-year return | +182.6% | +95.4% |
| Volatility (ann.) | 49.8% | 19.6% |
| Beta vs S&P 500 | 0.95 | 1.28 |
| Max drawdown (3Y) | -45.9% | -22.8% |
| Market cap | $1.9B | – |
| P/E (trailing) | 7.2 | – |
| 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 | BLBD | QQQ |
|---|---|---|
| 2022 | -31.5% | -32.6% |
| 2023 | +151.7% | +54.9% |
| 2024 | +43.3% | +25.6% |
| 2025 | +21.7% | +20.8% |
| 2026 | +27.5% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLBD and QQQ good diversifiers for each other?
Reasonably. At 0.24, BLBD and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between BLBD and QQQ?
As of 2026-08-27, the correlation of weekly returns between BLBD and QQQ is 0.24 over 3 years, -0.01 over 1 year and 0.28 over 5 years.
Is QQQ a good diversifier for BLBD?
Reasonably. At 0.24, BLBD and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.24 mean?
A reading of 0.24 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/blbd-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/blbd-vs-qqq/)
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Related comparisons
Hubs: BLBD correlations · QQQ correlations
