RR vs SES: Correlation
How closely do Richtech Robotics Inc. (RR) and SES AI Corporation (SES) trade together? Their weekly returns over three years give a correlation of 0.57, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RR and SES?
Across a 3-year window, the weekly returns of RR and SES correlate at 0.57, moderate. The link has loosened recently: the 1-year correlation (0.45) runs below the 3-year figure (0.57). Stretching to 5 years gives n/a, with an annualized covariance of 26969.9 %².
In RR's tracked universe of 21 assets, SES sits right near the top at #2. Over the last 12 months RR came out ahead by 9.9 percentage points (-41.1% against -51.0%). One caveat on sizing: SES is 1.9 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.
RR vs SES: side by side
| RR (Richtech Robotics Inc.) | SES (SES AI Corporation) | |
|---|---|---|
| 1-year return | -41.1% | -51.0% |
| 5-year return | n/a | -94.5% |
| Volatility (ann.) | 155.1% | 294.5% |
| Beta vs S&P 500 | 2.22 | 2.43 |
| Max drawdown (3Y) | -96.7% | -89.7% |
| Market cap | $0.4B | $0.2B |
| P/E (trailing) | 27.9 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | RR | SES |
|---|---|---|
| 2022 | – | -68.3% |
| 2023 | – | -41.9% |
| 2024 | -54.6% | +19.7% |
| 2025 | +19.6% | -17.8% |
| 2026 | -39.6% | -69.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RR and SES good diversifiers for each other?
To a limited degree. At 0.57 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 RR and SES?
Using weekly returns as of 2026-08-27: 0.57 over 3 years, with 0.45 over the last year and n/a over 5 years.
Is SES a good diversifier for RR?
To a limited degree. At 0.57 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 0.57 mean?
On the −1 to +1 scale, 0.57 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/rr-vs-ses.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/rr-vs-ses/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: RR correlations · SES correlations
