CSPI vs RBRK: Correlation
CSP Inc. (CSPI) and Rubrik, Inc. (RBRK) show a moderate relationship: their 3-year correlation of weekly returns is 0.35.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CSPI and RBRK?
Over the past 3 years, CSPI and RBRK moved with a correlation of 0.35, which is moderate. Recent behaviour matches the longer record: 0.25 over 1 year against 0.35 over 3. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 1226.8 %².
RBRK is one of the assets that tracks CSPI most closely: it ranks #2 out of the 12 assets we track against CSPI. Correlation aside, the last 12 months split them widely, with RBRK ahead by 59.4 points (-37.1% versus +22.3%).
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.
CSPI vs RBRK: side by side
| CSPI (CSP Inc.) | RBRK (Rubrik, Inc.) | |
|---|---|---|
| 1-year return | -37.1% | +22.3% |
| 5-year return | +76.7% | n/a |
| Volatility (ann.) | 74.2% | 63.9% |
| Beta vs S&P 500 | 1.67 | 1.92 |
| Max drawdown (3Y) | -73.4% | -56.1% |
| Market cap | $0.1B | $22.0B |
| P/E (trailing) | – | – |
| Dividend yield | 1.52% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CSPI | RBRK |
|---|---|---|
| 2022 | +8.0% | – |
| 2023 | +108.9% | – |
| 2024 | +66.1% | – |
| 2025 | -21.6% | +17.0% |
| 2026 | -36.5% | +39.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CSPI and RBRK good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.35 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between CSPI and RBRK?
Using weekly returns as of 2026-08-27: 0.35 over 3 years, with 0.25 over the last year and n/a over 5 years.
Is RBRK a good diversifier for CSPI?
Yes, to a useful degree: a correlation of 0.35 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.35 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/cspi-vs-rbrk.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cspi-vs-rbrk/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CSPI correlations · RBRK correlations
