BESS vs CDP: Correlation
How closely do Bimergen Energy Corporation (BESS) and COPT Defense Properties (CDP) trade together? Their weekly returns over three years give a correlation of -0.23, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BESS and CDP?
On 3 years of weekly data the BESS/CDP correlation comes out at -0.23, negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.17) sits close to the 3-year figure. The 5-year figure is -0.15, and annualized covariance runs at -23724.2 %².
Within BESS's tracked universe of 51 assets, CDP comes in at #29 by 3-year correlation. The last year tells two different stories: CDP led by 84.8 percentage points, -50.4% for BESS against +34.4% for CDP. Note the risk asymmetry: BESS runs 255.7 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.
BESS vs CDP: side by side
| BESS (Bimergen Energy Corporation) | CDP (COPT Defense Properties) | |
|---|---|---|
| 1-year return | -50.4% | +34.4% |
| 5-year return | -87.7% | +64.2% |
| Volatility (ann.) | 5140.2% | 20.1% |
| Beta vs S&P 500 | 17.01 | 0.32 |
| Max drawdown (3Y) | -99.5% | -23.7% |
| Market cap | – | $4.3B |
| P/E (trailing) | – | 25.9 |
| Dividend yield | 0.00% | 3.35% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BESS | CDP |
|---|---|---|
| 2022 | -30.0% | -3.3% |
| 2023 | -14.3% | +3.7% |
| 2024 | +16.7% | +26.2% |
| 2025 | +7.1% | -6.2% |
| 2026 | -70.5% | +36.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BESS and CDP good diversifiers for each other?
Yes. With a correlation of -0.23, BESS and CDP have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between BESS and CDP?
As of 2026-08-27, the correlation of weekly returns between BESS and CDP is -0.23 over 3 years, -0.17 over 1 year and -0.15 over 5 years.
Is CDP a good diversifier for BESS?
Yes. With a correlation of -0.23, BESS and CDP have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.23 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/bess-vs-cdp.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bess-vs-cdp/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BESS correlations · CDP correlations
