MXC vs PCG: Correlation
Measured on weekly returns over the past three years, Mexco Energy Corporation (MXC) and PG&E Corporation (PCG) carry a correlation of -0.29, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MXC and PCG?
On 3 years of weekly data the MXC/PCG correlation comes out at -0.29, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.19 lands near the 3-year figure. The 5-year figure is -0.07, and annualized covariance runs at -442.7 %².
Out of 56 assets tracked against MXC, PCG lands near the bottom at #53. Twelve-month performance is nearly a tie, at +21.6% for MXC and +20.3% for PCG. One caveat on sizing: MXC is 2.5 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.
MXC vs PCG: side by side
| MXC (Mexco Energy Corporation) | PCG (PG&E Corporation) | |
|---|---|---|
| 1-year return | +21.6% | +20.3% |
| 5-year return | +7.2% | +102.7% |
| Volatility (ann.) | 62.1% | 24.7% |
| Beta vs S&P 500 | -0.31 | 0.24 |
| Max drawdown (3Y) | -60.6% | -39.6% |
| Market cap | – | $39.5B |
| P/E (trailing) | 13.0 | 12.9 |
| Dividend yield | 1.02% | 0.96% |
| Sector / category | US Listed | Utilities |
Year-by-year returns
| Year | MXC | PCG |
|---|---|---|
| 2022 | +33.0% | +33.9% |
| 2023 | -26.2% | +10.9% |
| 2024 | +24.6% | +12.3% |
| 2025 | -10.8% | -19.7% |
| 2026 | -0.6% | +12.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MXC and PCG good diversifiers for each other?
Yes: at -0.29, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between MXC and PCG?
The MXC/PCG correlation stands at -0.29 on a 3-year window (1 year: -0.19, 5 years: -0.07), computed from weekly returns as of 2026-08-27.
Is PCG a good diversifier for MXC?
Yes: at -0.29, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.29 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/mxc-vs-pcg.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/mxc-vs-pcg/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MXC correlations · PCG correlations
