NI vs PSIG: Correlation
NiSource (NI) and PS International Group Ltd. (PSIG) show a negative relationship: their 3-year correlation of weekly returns is -0.26.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NI and PSIG?
Across a 3-year window, the weekly returns of NI and PSIG correlate at -0.26, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.25 lands near the 3-year figure. Stretching to 5 years gives n/a, with an annualized covariance of -727.4 %².
Out of 38 assets tracked against NI, PSIG lands near the bottom at #37. Their recent paths diverged sharply: over the last 12 months NI outperformed by 53.0 percentage points (-0.9% for NI against -53.9% for PSIG). One caveat on sizing: PSIG is 8.8 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.
NI vs PSIG: side by side
| NI (NiSource) | PSIG (PS International Group Ltd.) | |
|---|---|---|
| 1-year return | -0.9% | -53.9% |
| 5-year return | +94.6% | n/a |
| Volatility (ann.) | 17.8% | 157.0% |
| Beta vs S&P 500 | 0.26 | 0.97 |
| Max drawdown (3Y) | -16.7% | -96.0% |
| Market cap | $19.6B | – |
| P/E (trailing) | 21.9 | – |
| Dividend yield | 1.41% | 0.00% |
| Sector / category | Utilities | US Listed |
Year-by-year returns
| Year | NI | PSIG |
|---|---|---|
| 2022 | +2.7% | – |
| 2023 | +0.5% | – |
| 2024 | +43.5% | – |
| 2025 | +16.8% | +8.3% |
| 2026 | +0.0% | -62.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NI and PSIG good diversifiers for each other?
Yes: at -0.26, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between NI and PSIG?
The NI/PSIG correlation stands at -0.26 on a 3-year window (1 year: -0.25, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is PSIG a good diversifier for NI?
Yes: at -0.26, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.26 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/ni-vs-psig.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ni-vs-psig/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: NI correlations · PSIG correlations
