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Correlation Deep Dive

Financials (XLF) vs 10Y Treasury Yield: Correlation Analysis

Pearson correlation of daily returns for Financials (XLF) and 10Y Treasury Yield. Rolling windows, yearly breakdown, regression beta, and divergence analysis. Data window spans to (1,243 aligned observations).

30-Day
-0.352
Weak negative
90-Day
-0.040
Essentially uncorrelated
1-Year
-0.030
Essentially uncorrelated
5-Year
+0.122
Essentially uncorrelated

What the Number Means

With a correlation of -0.04, Financials (XLF) and 10Y Treasury Yield are essentially uncorrelated at daily frequency. Either the relationship operates at a different time horizon or the shared driver has been dominated by idiosyncratic noise during the observation window.

Recent vs Long-Run Behavior

Last 90 Days
-0.040
5-Year Baseline
+0.122

The historical positive relationship between Financials (XLF) and 10Y Treasury Yield has inverted. Recent 90-day correlation is -0.04 versus a long-run reading of 0.12. This kind of decoupling tends to mark regime transitions. Often one asset is responding to a newly dominant driver while the other is anchored to the old narrative.

Statistical Details (1-Year Window)

Pearson Correlation (r)-0.030
R-Squared (r²)0.001
Beta (Financials (XLF) vs 10Y Treasury Yield)-0.028
Daily Volatility σ(Financials (XLF))0.94%
Daily Volatility σ(10Y Treasury Yield)1.00%
Observations252

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

Year-by-Year Correlation

YearCorrelationStrengthObservations
2026-0.041Essentially uncorrelated81
2025+0.054Essentially uncorrelated248
2024+0.059Essentially uncorrelated250
2023+0.138Essentially uncorrelated249
2022-0.019Essentially uncorrelated249
2021+0.510Moderate positive166

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
+0.576
ending 2021-09-27
Most Decoupled Period
-0.424
ending 2023-01-17

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 Financials (XLF) 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.