BDN vs DEI: Correlation
Measured on weekly returns over the past three years, Brandywine Realty Trust (BDN) and Douglas Emmett, Inc. (DEI) carry a correlation of 0.74, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BDN and DEI?
Across a 3-year window, the weekly returns of BDN and DEI correlate at 0.74, strong. The link has loosened recently: the 1-year correlation (0.51) runs below the 3-year figure (0.74). Stretching to 5 years gives 0.79, with an annualized covariance of 1063.3 %².
DEI is one of the assets that tracks BDN most closely: it ranks #2 out of the 13 assets we track against BDN. Their 12-month results are close: -18.3% for BDN against -21.1% for DEI.
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 DEI: side by side
| BDN (Brandywine Realty Trust) | DEI (Douglas Emmett, Inc.) | |
|---|---|---|
| 1-year return | -18.3% | -21.1% |
| 5-year return | -61.3% | -52.6% |
| Volatility (ann.) | 40.3% | 35.7% |
| Beta vs S&P 500 | 1.01 | 0.99 |
| Max drawdown (3Y) | -56.3% | -51.8% |
| Market cap | $0.5B | $2.4B |
| P/E (trailing) | – | – |
| Dividend yield | 9.94% | 6.35% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BDN | DEI |
|---|---|---|
| 2022 | -50.7% | -50.9% |
| 2023 | +1.7% | -1.9% |
| 2024 | +17.1% | +34.6% |
| 2025 | -41.3% | -37.5% |
| 2026 | +15.3% | +12.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BDN and DEI good diversifiers for each other?
Somewhat, no more. With 0.74 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between BDN and DEI?
Using weekly returns as of 2026-08-27: 0.74 over 3 years, with 0.51 over the last year and 0.79 over 5 years.
Is DEI a good diversifier for BDN?
Somewhat, no more. With 0.74 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.74 mean?
A reading of 0.74 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/bdn-vs-dei.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/bdn-vs-dei/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BDN correlations · DEI correlations
