RPD vs XLU: Correlation
How closely do Rapid7, Inc. (RPD) and Utilities Select Sector SPDR Fund (XLU) trade together? Their weekly returns over three years give a correlation of -0.22, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RPD and XLU?
Across a 3-year window, the weekly returns of RPD and XLU correlate at -0.22, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.31 over 1 year against -0.22 over 3. Stretching to 5 years gives 0.00, with an annualized covariance of -192.2 %².
Within RPD's tracked universe of 29 assets, XLU comes in at #22 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months XLU outperformed by 38.8 percentage points (-34.7% for RPD against +4.1% for XLU). One caveat on sizing: RPD is 3.6 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.
RPD vs XLU: side by side
| RPD (Rapid7, Inc.) | XLU (Utilities Select Sector SPDR Fund) | |
|---|---|---|
| 1-year return | -34.7% | +4.1% |
| 5-year return | -88.9% | +46.3% |
| Volatility (ann.) | 56.3% | 15.8% |
| Beta vs S&P 500 | 1.42 | 0.26 |
| Max drawdown (3Y) | -91.8% | -13.1% |
| Market cap | $0.9B | – |
| P/E (trailing) | 37.5 | – |
| Dividend yield | 0.00% | 2.70% |
| Expense ratio | – | 0.08% |
| Assets under management | – | $23.1B |
| Sector / category | US Listed | Sector ETF |
XLU is an Utilities fund from State Street Investment Management: $23.1B under management, 31 holdings, a 0.08% expense ratio, a 2.70% trailing dividend yield.
Year-by-year returns
| Year | RPD | XLU |
|---|---|---|
| 2022 | -71.1% | +1.4% |
| 2023 | +68.0% | -7.2% |
| 2024 | -29.5% | +23.3% |
| 2025 | -62.2% | +16.0% |
| 2026 | -11.2% | +2.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RPD and XLU good diversifiers for each other?
Yes. With a correlation of -0.22, RPD and XLU have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between RPD and XLU?
Using weekly returns as of 2026-08-27: -0.22 over 3 years, with -0.31 over the last year and 0.00 over 5 years.
Is XLU a good diversifier for RPD?
Yes. With a correlation of -0.22, RPD and XLU have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.22 mean?
A reading of -0.22 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/rpd-vs-xlu.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/rpd-vs-xlu/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: RPD correlations · XLU correlations
