DGX vs RPD: Correlation
How closely do Quest Diagnostics (DGX) and Rapid7, Inc. (RPD) trade together? Their weekly returns over three years give a correlation of -0.19, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DGX and RPD?
On 3 years of weekly data the DGX/RPD correlation comes out at -0.19, negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.30) runs below the 3-year figure (-0.19). The 5-year figure is 0.02, and annualized covariance runs at -207.4 %².
By 3-year correlation, RPD places #26 of the 32 assets tracked against DGX. The last year tells two different stories: DGX led by 73.2 percentage points, +38.5% for DGX against -34.7% for RPD. One caveat on sizing: RPD is 2.9 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
DGX vs RPD: side by side
| DGX (Quest Diagnostics) | RPD (Rapid7, Inc.) | |
|---|---|---|
| 1-year return | +38.5% | -34.7% |
| 5-year return | +78.8% | -88.9% |
| Volatility (ann.) | 19.1% | 56.3% |
| Beta vs S&P 500 | 0.09 | 1.42 |
| Max drawdown (3Y) | -12.4% | -91.8% |
| Market cap | $27.0B | $0.9B |
| P/E (trailing) | 26.0 | 37.5 |
| Dividend yield | 1.36% | 0.00% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | DGX | RPD |
|---|---|---|
| 2022 | -7.8% | -71.1% |
| 2023 | -10.1% | +68.0% |
| 2024 | +11.8% | -29.5% |
| 2025 | +17.2% | -62.2% |
| 2026 | +42.8% | -11.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DGX and RPD good diversifiers for each other?
Yes. With a correlation of -0.19, DGX and RPD have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between DGX and RPD?
As of 2026-08-27, the correlation of weekly returns between DGX and RPD is -0.19 over 3 years, -0.30 over 1 year and 0.02 over 5 years.
Is RPD a good diversifier for DGX?
Yes. With a correlation of -0.19, DGX and RPD have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.19 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.
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Related comparisons
Hubs: DGX correlations · RPD correlations
