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Correlation Deep Dive

Consumer Discretionary (XLY) vs Staples (XLP): Correlation Analysis

Pearson correlation of daily returns for Consumer Discretionary (XLY) and Consumer Staples (XLP). Rolling windows, yearly breakdown, regression beta, and divergence analysis. Data window spans to (1,262 aligned observations).

30-Day
+0.525
Moderate positive
90-Day
+0.244
Weak positive
1-Year
+0.227
Weak positive
5-Year
+0.424
Moderate positive

What the Number Means

A correlation of 0.24 signals only a weak tendency to move together. On most days the two move independently. Do not expect one to reliably predict the other. Look for conditional relationships within specific regimes or event windows.

Recent vs Long-Run Behavior

Last 90 Days
+0.244
5-Year Baseline
+0.424

The correlation has weakened materially. The 90-day reading of 0.24 sits 0.18 below the long-run average of 0.42. Falling correlation signals the dispersion regime where idiosyncratic stories dominate and cross-asset diversification benefits improve.

Statistical Details (1-Year Window)

Pearson Correlation (r)+0.227
R-Squared (r²)0.052
Beta (Consumer Discretionary (XLY) vs Consumer Staples (XLP))0.328
Daily Volatility σ(Consumer Discretionary (XLY))1.15%
Daily Volatility σ(Consumer Staples (XLP))0.80%
Observations252

Correlation measures directional co-movement; R² quantifies the fraction of variance explained by the linear relationship. Beta is the slope coefficient from regressing Consumer Discretionary (XLY) returns on Consumer Staples (XLP) returns. A beta above 1 means the first asset amplifies moves of the second.

Year-by-Year Correlation

YearCorrelationStrengthObservations
2026+0.244Weak positive91
2025+0.329Weak positive250
2024+0.293Weak positive252
2023+0.419Moderate positive250
2022+0.590Moderate positive251
2021+0.276Weak 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
+0.778
ending 2022-12-19
Most Decoupled Period
+0.055
ending 2026-02-12

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 Consumer Discretionary (XLY) and Consumer Staples (XLP), 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.