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Correlation Deep Dive

ExxonMobil (XOM) vs Energy Sector (XLE): Correlation Analysis

Pearson correlation of daily returns for Exxon Mobil (XOM) and Energy (XLE). Rolling windows, yearly breakdown, regression beta, and divergence analysis. Data window spans to (1,262 aligned observations).

30-Day
+0.953
Very strong positive
90-Day
+0.918
Very strong positive
1-Year
+0.894
Very strong positive
5-Year
+0.922
Very strong positive

What the Number Means

With a correlation of 0.92, Exxon Mobil (XOM) and Energy (XLE) move together with remarkable consistency. A daily move in one is a reliable predictor of the direction of the other. This tight coupling usually reflects a common driver or a direct mechanical relationship.

Recent vs Long-Run Behavior

Last 90 Days
+0.918
5-Year Baseline
+0.922

Recent correlation tracks the long-run relationship closely. No meaningful divergence. The historical pattern between Exxon Mobil (XOM) and Energy (XLE) is intact and should continue to serve as a reasonable baseline for positioning.

Statistical Details (1-Year Window)

Pearson Correlation (r)+0.894
R-Squared (r²)0.799
Beta (Exxon Mobil (XOM) vs Energy (XLE))1.043
Daily Volatility σ(Exxon Mobil (XOM))1.43%
Daily Volatility σ(Energy (XLE))1.22%
Observations252

Correlation measures directional co-movement; R² quantifies the fraction of variance explained by the linear relationship. Beta is the slope coefficient from regressing Exxon Mobil (XOM) returns on Energy (XLE) returns. A beta above 1 means the first asset amplifies moves of the second.

Year-by-Year Correlation

YearCorrelationStrengthObservations
2026+0.918Very strong positive91
2025+0.900Very strong positive250
2024+0.870Very strong positive252
2023+0.911Very strong positive250
2022+0.946Very strong positive251
2021+0.952Very strong positive168

Year-by-year correlation reveals how the relationship has held up across different macro regimes. Sharp year-over-year swings in correlation often mark the transition between stress and calm periods.

Rolling 90-Day Extremes

Most Correlated Period
+0.970
ending 2022-09-15
Most Decoupled Period
+0.818
ending 2025-02-26

Extremes in rolling 90-day correlation often coincide with regime changes, forced deleveraging, or the arrival of a dominant new macro theme that overwhelms normal relationships.

Methodology

Correlations are computed on daily log-adjacent returns for Exxon Mobil (XOM) and Energy (XLE), aligned on shared trading dates. We use the Pearson product-moment coefficient, which measures the linear relationship between two return series.

Windows are the most recent N observations for 30D, 90D, and 1Y (252 trading days); the 5Y figure uses all aligned data up to 1,260 observations. Beta is the OLS slope from regressing the first series on the second. Data updates daily with a 24-hour revalidation cadence.

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Get daily macro analysis on shifting correlations, regime transitions, and cross-asset signals.

Correlation is not causation and backward-looking statistics can fail when regimes shift. Positions sized on historical correlation assumptions should be stress-tested against scenarios where the relationship breaks. For informational purposes only.