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Correlation Deep Dive

Energy (XLE) vs 10Y Treasury Yield: Correlation Analysis

Pearson correlation of daily returns for Energy (XLE) and 10Y Treasury Yield. Rolling windows, yearly breakdown, regression beta, and divergence analysis. Data window spans to (1,242 aligned observations).

30-Day
+0.599
Moderate positive
90-Day
+0.409
Moderate positive
1-Year
+0.263
Weak positive
5-Year
+0.176
Essentially uncorrelated

What the Number Means

The 0.41 correlation indicates that Energy (XLE) and 10Y Treasury Yield have a moderate tendency to move together. The relationship is real but noisy, with frequent days where they disagree. Regime context matters: the correlation often strengthens during stress and weakens during calm periods.

Recent vs Long-Run Behavior

Last 90 Days
+0.409
5-Year Baseline
+0.176

The correlation has strengthened materially. The 90-day reading of 0.41 is 0.23 above the long-run average of 0.18. Rising correlation typically accompanies deleveraging, broad risk-off, or a dominant single-factor regime where idiosyncratic drivers get drowned out.

Statistical Details (1-Year Window)

Pearson Correlation (r)+0.263
R-Squared (r²)0.069
Beta (Energy (XLE) vs 10Y Treasury Yield)0.362
Daily Volatility σ(Energy (XLE))1.32%
Daily Volatility σ(10Y Treasury Yield)0.96%
Observations252

Correlation measures directional co-movement; R² quantifies the fraction of variance explained by the linear relationship. Beta is the slope coefficient from regressing Energy (XLE) returns on 10Y Treasury Yield returns. A beta above 1 means the first asset amplifies moves of the second.

Year-by-Year Correlation

YearCorrelationStrengthObservations
2026+0.316Weak positive112
2025+0.166Essentially uncorrelated248
2024+0.118Essentially uncorrelated250
2023+0.193Essentially uncorrelated249
2022+0.042Essentially uncorrelated249
2021+0.455Moderate positive134

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
+0.471
ending 2021-11-02
Most Decoupled Period
-0.177
ending 2024-04-23

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 Energy (XLE) and 10Y Treasury Yield, 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.