RBRK vs RDDT: Correlation
Measured on weekly returns over the past three years, Rubrik, Inc. (RBRK) and Reddit (RDDT) carry a correlation of 0.50, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RBRK and RDDT?
On 3 years of weekly data the RBRK/RDDT correlation comes out at 0.50, moderate. Little has changed lately, as the 1-year reading of 0.53 lands near the 3-year figure. The 5-year figure is n/a, and annualized covariance runs at 2425.8 %².
Among the 20 assets we track against RBRK, RDDT ranks #7 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months RBRK outperformed by 49.4 percentage points (+22.3% for RBRK against -27.1% for RDDT).
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.
RBRK vs RDDT: side by side
| RBRK (Rubrik, Inc.) | RDDT (Reddit) | |
|---|---|---|
| 1-year return | +22.3% | -27.1% |
| 5-year return | n/a | n/a |
| Volatility (ann.) | 63.9% | 75.2% |
| Beta vs S&P 500 | 1.92 | 2.59 |
| Max drawdown (3Y) | -56.1% | -61.4% |
| Market cap | $22.0B | $29.6B |
| P/E (trailing) | – | 36.1 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | Communication Services |
Are RBRK and RDDT good diversifiers for each other?
To a limited degree. At 0.50 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between RBRK and RDDT?
Using weekly returns as of 2026-08-27: 0.50 over 3 years, with 0.53 over the last year and n/a over 5 years.
Is RDDT a good diversifier for RBRK?
To a limited degree. At 0.50 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.50 mean?
On the −1 to +1 scale, 0.50 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/rbrk-vs-rddt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/rbrk-vs-rddt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: RBRK correlations · RDDT correlations
