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Correlation Deep Dive

Meta (META) vs Communication Services (XLC): Correlation Analysis

Pearson correlation of daily returns for Meta (META) and Communication Services (XLC). Rolling windows, yearly breakdown, regression beta, and divergence analysis. Data window spans to (1,262 aligned observations).

30-Day
+0.408
Moderate positive
90-Day
+0.709
Strong positive
1-Year
+0.656
Strong positive
5-Year
+0.817
Very strong positive

What the Number Means

At 0.71, Meta (META) and Communication Services (XLC) have a strong tendency to move together. Most daily moves align, though divergences are common enough that the relationship should not be treated as deterministic. A shared regime or macro factor is likely driving both.

Recent vs Long-Run Behavior

Last 90 Days
+0.709
5-Year Baseline
+0.817

Recent correlation tracks the long-run relationship closely. No meaningful divergence. The historical pattern between Meta (META) and Communication Services (XLC) is intact and should continue to serve as a reasonable baseline for positioning.

Statistical Details (1-Year Window)

Pearson Correlation (r)+0.656
R-Squared (r²)0.431
Beta (Meta (META) vs Communication Services (XLC))1.772
Daily Volatility σ(Meta (META))2.23%
Daily Volatility σ(Communication Services (XLC))0.82%
Observations252

Correlation measures directional co-movement; R² quantifies the fraction of variance explained by the linear relationship. Beta is the slope coefficient from regressing Meta (META) returns on Communication Services (XLC) returns. A beta above 1 means the first asset amplifies moves of the second.

Year-by-Year Correlation

YearCorrelationStrengthObservations
2026+0.710Strong positive91
2025+0.766Strong positive250
2024+0.759Strong positive252
2023+0.839Very strong positive250
2022+0.858Very strong positive251
2021+0.829Very 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
+0.935
ending 2022-09-13
Most Decoupled Period
+0.558
ending 2025-11-21

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 Meta (META) and Communication Services (XLC), 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.