BDN vs DEA: Correlation
How closely do Brandywine Realty Trust (BDN) and Easterly Government Properties, Inc. (DEA) trade together? Their weekly returns over three years give a correlation of 0.69, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BDN and DEA?
Across a 3-year window, the weekly returns of BDN and DEA correlate at 0.69, strong. The relationship has been stable: the 1-year correlation (0.66) sits close to the 3-year figure. Stretching to 5 years gives 0.69, with an annualized covariance of 717.7 %².
By 3-year correlation, DEA places #6 of the 13 assets tracked against BDN. Correlation aside, the last 12 months split them widely, with DEA ahead by 33.5 points (-18.3% versus +15.2%). Note the risk asymmetry: BDN runs 1.6 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.
BDN vs DEA: side by side
| BDN (Brandywine Realty Trust) | DEA (Easterly Government Properties, Inc.) | |
|---|---|---|
| 1-year return | -18.3% | +15.2% |
| 5-year return | -61.3% | -33.0% |
| Volatility (ann.) | 40.3% | 25.9% |
| Beta vs S&P 500 | 1.01 | 0.47 |
| Max drawdown (3Y) | -56.3% | -42.2% |
| Market cap | $0.5B | $1.2B |
| P/E (trailing) | – | 129.4 |
| Dividend yield | 9.94% | 7.27% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BDN | DEA |
|---|---|---|
| 2022 | -50.7% | -34.0% |
| 2023 | +1.7% | +1.8% |
| 2024 | +17.1% | -7.9% |
| 2025 | -41.3% | -18.6% |
| 2026 | +15.3% | +22.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BDN and DEA good diversifiers for each other?
Somewhat, no more. With 0.69 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between BDN and DEA?
As of 2026-08-27, the correlation of weekly returns between BDN and DEA is 0.69 over 3 years, 0.66 over 1 year and 0.69 over 5 years.
Is DEA a good diversifier for BDN?
Somewhat, no more. With 0.69 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.69 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/bdn-vs-dea.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bdn-vs-dea/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BDN correlations · DEA correlations
