ES vs PSIG: Correlation
How closely do Eversource Energy (ES) and PS International Group Ltd. (PSIG) trade together? Their weekly returns over three years give a correlation of -0.25, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ES and PSIG?
Across a 3-year window, the weekly returns of ES and PSIG correlate at -0.25, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.20 over 1 year against -0.25 over 3. Stretching to 5 years gives n/a, with an annualized covariance of -854.1 %².
Among the 28 assets we track against ES, PSIG sits near the bottom by co-movement, at rank #25. The last year tells two different stories: ES led by 68.4 percentage points, +14.5% for ES against -53.9% for PSIG. Risk is not evenly split, since PSIG carries 6.9 times the volatility of the other side.
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.
ES vs PSIG: side by side
| ES (Eversource Energy) | PSIG (PS International Group Ltd.) | |
|---|---|---|
| 1-year return | +14.5% | -53.9% |
| 5-year return | -5.0% | n/a |
| Volatility (ann.) | 22.9% | 157.0% |
| Beta vs S&P 500 | 0.20 | 0.97 |
| Max drawdown (3Y) | -18.8% | -96.0% |
| Market cap | $26.7B | – |
| P/E (trailing) | 18.6 | – |
| Dividend yield | 4.30% | 0.00% |
| Sector / category | Utilities | US Listed |
Year-by-year returns
| Year | ES | PSIG |
|---|---|---|
| 2022 | -5.1% | – |
| 2023 | -23.4% | – |
| 2024 | -2.5% | – |
| 2025 | +22.9% | +8.3% |
| 2026 | +7.7% | -62.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ES and PSIG good diversifiers for each other?
Yes. With a correlation of -0.25, ES and PSIG have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between ES and PSIG?
The ES/PSIG correlation stands at -0.25 on a 3-year window (1 year: -0.20, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is PSIG a good diversifier for ES?
Yes. With a correlation of -0.25, ES and PSIG have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.25 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/es-vs-psig.json
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Related comparisons
Hubs: ES correlations · PSIG correlations
