SEI vs WTTR: Correlation
How closely do Solaris Energy Infrastructure, Inc. (SEI) and Select Water Solutions, Inc. (WTTR) trade together? Their weekly returns over three years give a correlation of 0.53, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SEI and WTTR?
Across a 3-year window, the weekly returns of SEI and WTTR correlate at 0.53, moderate. The relationship has been stable: the 1-year correlation (0.45) sits close to the 3-year figure. Stretching to 5 years gives 0.58, with an annualized covariance of 1681.4 %².
Few assets follow SEI as closely as WTTR, which ranks #2 of 12 tracked partners. Their recent paths diverged sharply: over the last 12 months WTTR outperformed by 60.2 percentage points (+80.2% for SEI against +140.4% for WTTR). One caveat on sizing: SEI is 1.6 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.
SEI vs WTTR: side by side
| SEI (Solaris Energy Infrastructure, Inc.) | WTTR (Select Water Solutions, Inc.) | |
|---|---|---|
| 1-year return | +80.2% | +140.4% |
| 5-year return | +759.3% | +303.0% |
| Volatility (ann.) | 72.5% | 44.1% |
| Beta vs S&P 500 | 1.79 | 0.91 |
| Max drawdown (3Y) | -55.4% | -50.7% |
| Market cap | $5.3B | $2.8B |
| P/E (trailing) | 66.1 | 69.8 |
| Dividend yield | 0.93% | 1.46% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | SEI | WTTR |
|---|---|---|
| 2022 | +57.5% | +49.2% |
| 2023 | -15.7% | -15.6% |
| 2024 | +277.7% | +79.2% |
| 2025 | +62.3% | -18.3% |
| 2026 | +15.4% | +88.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SEI and WTTR good diversifiers for each other?
To a limited degree. At 0.53 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 SEI and WTTR?
The SEI/WTTR correlation stands at 0.53 on a 3-year window (1 year: 0.45, 5 years: 0.58), computed from weekly returns as of 2026-08-27.
Is WTTR a good diversifier for SEI?
To a limited degree. At 0.53 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 0.53 mean?
On the −1 to +1 scale, 0.53 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/sei-vs-wttr.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/sei-vs-wttr/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: SEI correlations · WTTR correlations
