CSGP vs SPGI: Correlation
CoStar Group (CSGP) and S&P Global (SPGI) show a moderate relationship: their 3-year correlation of weekly returns is 0.46.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CSGP and SPGI?
Across a 3-year window, the weekly returns of CSGP and SPGI correlate at 0.46, moderate. The relationship has been stable: the 1-year correlation (0.43) sits close to the 3-year figure. Stretching to 5 years gives 0.52, with an annualized covariance of 417.2 %².
Within CSGP's tracked universe of 34 assets, SPGI comes in at #6 by 3-year correlation. Correlation aside, the last 12 months split them widely, with SPGI ahead by 49.4 points (-65.0% versus -15.6%). This link changes with the market regime, having swung between 0.09 and 0.82 on a rolling one-year basis.
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.
CSGP vs SPGI: side by side
| CSGP (CoStar Group) | SPGI (S&P Global) | |
|---|---|---|
| 1-year return | -65.0% | -15.6% |
| 5-year return | -62.7% | +8.1% |
| Volatility (ann.) | 36.5% | 24.7% |
| Beta vs S&P 500 | 0.86 | 0.86 |
| Max drawdown (3Y) | -72.2% | -30.5% |
| Market cap | $12.7B | $128.4B |
| P/E (trailing) | 174.1 | 26.6 |
| Dividend yield | 0.00% | 0.88% |
| Sector / category | Real Estate | Financials |
Year-by-year returns
| Year | CSGP | SPGI |
|---|---|---|
| 2022 | -2.2% | -28.4% |
| 2023 | +13.1% | +32.8% |
| 2024 | -18.1% | +13.9% |
| 2025 | -6.1% | +5.7% |
| 2026 | -53.4% | -11.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CSGP and SPGI good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.46 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between CSGP and SPGI?
As of 2026-08-27, the correlation of weekly returns between CSGP and SPGI is 0.46 over 3 years, 0.43 over 1 year and 0.52 over 5 years.
Is SPGI a good diversifier for CSGP?
Yes, to a useful degree: a correlation of 0.46 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.46 mean?
On the −1 to +1 scale, 0.46 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.
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Related comparisons
Hubs: CSGP correlations · SPGI correlations
