CONVEX
Correlation Deep Dive

Emerging Markets (EEM) vs VIX: Correlation Analysis

Pearson correlation of daily returns for Emerging Markets (EEM) and VIX Index. Rolling windows, yearly breakdown, regression beta, and divergence analysis. Data window spans to (1,251 aligned observations).

30-Day
-0.616
Strong negative
90-Day
-0.624
Strong negative
1-Year
-0.577
Moderate negative
5-Year
-0.562
Moderate negative

What the Number Means

At -0.62, Emerging Markets (EEM) and VIX Index have a strong tendency to move in opposite directions. 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
-0.624
5-Year Baseline
-0.562

Recent correlation tracks the long-run relationship closely. No meaningful divergence. The historical pattern between Emerging Markets (EEM) and VIX Index is intact and should continue to serve as a reasonable baseline for positioning.

Statistical Details (1-Year Window)

Pearson Correlation (r)-0.577
R-Squared (r²)0.333
Beta (Emerging Markets (EEM) vs VIX Index)-0.090
Daily Volatility σ(Emerging Markets (EEM))1.17%
Daily Volatility σ(VIX Index)7.52%
Observations252

Correlation measures directional co-movement; R² quantifies the fraction of variance explained by the linear relationship. Beta is the slope coefficient from regressing Emerging Markets (EEM) returns on VIX Index returns. A beta above 1 means the first asset amplifies moves of the second.

Year-by-Year Correlation

YearCorrelationStrengthObservations
2026-0.622Strong negative80
2025-0.698Strong negative250
2024-0.473Moderate negative252
2023-0.534Moderate negative250
2022-0.611Strong negative251
2021-0.579Moderate negative168

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
-0.280
ending 2024-12-16
Most Decoupled Period
-0.785
ending 2025-05-13

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 Emerging Markets (EEM) and VIX Index, 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.