BDN vs QQQ: Correlation
Measured on weekly returns over the past three years, Brandywine Realty Trust (BDN) 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 BDN and QQQ?
Over the past 3 years, BDN and QQQ moved with a correlation of 0.24, which is weak. Little has changed lately, as the 1-year reading of 0.25 lands near the 3-year figure. Over 5 years the correlation is 0.30, and the annualized covariance of weekly returns is 189.3 %².
Among the 13 assets we track against BDN, QQQ sits near the bottom by co-movement, at rank #10. The last year tells two different stories: QQQ led by 44.6 percentage points, -18.3% for BDN against +26.3% for QQQ. Risk is not evenly split, since BDN carries 2.1 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.
BDN vs QQQ: side by side
| BDN (Brandywine Realty Trust) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -18.3% | +26.3% |
| 5-year return | -61.3% | +95.4% |
| Volatility (ann.) | 40.3% | 19.6% |
| Beta vs S&P 500 | 1.01 | 1.28 |
| Max drawdown (3Y) | -56.3% | -22.8% |
| Market cap | $0.5B | – |
| P/E (trailing) | – | – |
| Dividend yield | 9.94% | 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 | BDN | QQQ |
|---|---|---|
| 2022 | -50.7% | -32.6% |
| 2023 | +1.7% | +54.9% |
| 2024 | +17.1% | +25.6% |
| 2025 | -41.3% | +20.8% |
| 2026 | +15.3% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BDN and QQQ good diversifiers for each other?
A fair diversifier. At 0.24, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between BDN and QQQ?
Using weekly returns as of 2026-08-27: 0.24 over 3 years, with 0.25 over the last year and 0.30 over 5 years.
Is QQQ a good diversifier for BDN?
A fair diversifier. At 0.24, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.24 mean?
On the −1 to +1 scale, 0.24 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
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Related comparisons
Hubs: BDN correlations · QQQ correlations
