BXP vs CSGP: Correlation
How closely do BXP, Inc. (BXP) and CoStar Group (CSGP) trade together? Their weekly returns over three years give a correlation of 0.34, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BXP and CSGP?
Over the past 3 years, BXP and CSGP moved with a correlation of 0.34, which is moderate. Little has changed lately, as the 1-year reading of 0.34 lands near the 3-year figure. Over 5 years the correlation is 0.31, and the annualized covariance of weekly returns is 416.3 %².
Within BXP's tracked universe of 45 assets, CSGP comes in at #33 by 3-year correlation. The last year tells two different stories: BXP led by 67.9 percentage points, +2.9% for BXP against -65.0% for CSGP. On a rolling one-year basis the correlation drifted between 0.17 and 0.65, a moderate band.
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.
BXP vs CSGP: side by side
| BXP (BXP, Inc.) | CSGP (CoStar Group) | |
|---|---|---|
| 1-year return | +2.9% | -65.0% |
| 5-year return | -18.9% | -62.7% |
| Volatility (ann.) | 33.1% | 36.5% |
| Beta vs S&P 500 | 1.02 | 0.86 |
| Max drawdown (3Y) | -39.0% | -72.2% |
| Market cap | $12.7B | $12.7B |
| P/E (trailing) | 37.8 | 174.1 |
| Dividend yield | 3.98% | 0.00% |
| Sector / category | Real Estate | Real Estate |
Year-by-year returns
| Year | BXP | CSGP |
|---|---|---|
| 2022 | -38.6% | -2.2% |
| 2023 | +11.0% | +13.1% |
| 2024 | +12.3% | -18.1% |
| 2025 | -4.7% | -6.1% |
| 2026 | +6.2% | -53.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BXP and CSGP good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.34 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between BXP and CSGP?
As of 2026-08-27, the correlation of weekly returns between BXP and CSGP is 0.34 over 3 years, 0.34 over 1 year and 0.31 over 5 years.
Is CSGP a good diversifier for BXP?
Yes, to a useful degree: a correlation of 0.34 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.34 mean?
On the −1 to +1 scale, 0.34 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
$ curl https://www.pairbook.io/api/v1/pairs/bxp-vs-csgp.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bxp-vs-csgp/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BXP correlations · CSGP correlations
