CSGP vs NDAQ: Correlation
How closely do CoStar Group (CSGP) and Nasdaq, Inc. (NDAQ) trade together? Their weekly returns over three years give a correlation of 0.47, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CSGP and NDAQ?
Across a 3-year window, the weekly returns of CSGP and NDAQ correlate at 0.47, moderate. Recent behaviour matches the longer record: 0.43 over 1 year against 0.47 over 3. Stretching to 5 years gives 0.47, with an annualized covariance of 394.1 %².
Few assets follow CSGP as closely as NDAQ, which ranks #3 of 34 tracked partners. The last year tells two different stories: NDAQ led by 71.1 percentage points, -65.0% for CSGP against +6.1% for NDAQ. On a rolling one-year basis the correlation drifted between 0.16 and 0.55, a moderate band. Risk is not evenly split, since CSGP carries 1.6 times the volatility of the other side.
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 NDAQ: side by side
| CSGP (CoStar Group) | NDAQ (Nasdaq, Inc.) | |
|---|---|---|
| 1-year return | -65.0% | +6.1% |
| 5-year return | -62.7% | +64.4% |
| Volatility (ann.) | 36.5% | 23.2% |
| Beta vs S&P 500 | 0.86 | 0.80 |
| Max drawdown (3Y) | -72.2% | -23.4% |
| Market cap | $12.7B | $55.5B |
| P/E (trailing) | 174.1 | 29.0 |
| Dividend yield | 0.00% | 1.13% |
| Sector / category | Real Estate | Financials |
Year-by-year returns
| Year | CSGP | NDAQ |
|---|---|---|
| 2022 | -2.2% | -11.2% |
| 2023 | +13.1% | -3.7% |
| 2024 | -18.1% | +34.8% |
| 2025 | -6.1% | +27.2% |
| 2026 | -53.4% | +3.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CSGP and NDAQ good diversifiers for each other?
A fair diversifier. At 0.47, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between CSGP and NDAQ?
The CSGP/NDAQ correlation stands at 0.47 on a 3-year window (1 year: 0.43, 5 years: 0.47), computed from weekly returns as of 2026-08-27.
Is NDAQ a good diversifier for CSGP?
A fair diversifier. At 0.47, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.47 mean?
A reading of 0.47 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/csgp-vs-ndaq.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/csgp-vs-ndaq/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CSGP correlations · NDAQ correlations
