Correlation Analysis
Entergy Corporation vs Mastercard Incorporated
ETR vs MA
+0.803
Strong positive
When one moves up, the other tends to follow.
Entergy Corporation
↗ETR
Entergy is a holding company with five regulated vertically integrated utilities that generate and distribute electricity to 3 million customers in Arkansas, Louisiana, Mississippi, and Texas. It is one of the largest power producers in the country with 27 gigawatts of rate-regulated owned and leased power generation capacity. Entergy was the second-largest nuclear owner in the US before it began retiring and selling its plants in the Northeast in 2014. It sold its two small gas utilities in Louisiana in 2025.
Market cap 52.4B · 12,233 employees
Mastercard Incorporated
↗MA
Mastercard is the second-largest payment processor in the world, having processed close to $11 trillion in volume during 2025. Mastercard operates in over 200 countries and processes transactions in over 150 currencies.
Market cap 447.2B
Time Series
Relative Performance
Who Moves First
MA leads ETR by 6 days
MA tends to move before ETR.
After testing 13 timing shifts, the strongest relationship was +0.810 (they moved in the same direction).
Do They Crash Together?
Correlation by Market Regime
How these series behave when markets are rising, falling, or diverging. A correlation that holds in drawdowns is very different from one that only works in rallies.
Both Rising
+0.037
12 periods · Return correlation when both series rose
Both Falling
-0.258
6 periods · Return correlation when both series fell
Diverging
-0.802
17 periods · Return correlation when series moved apart
R-Squared
64.4%
Share of variance in one series explained by the other.
Trend Agreement
58.0%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,254
Deep shared window — 1,254 usable pairs.
Significance
p < 0.001
95% CI: [0.782, 0.822]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired data points survived the daily window.
Raw input
1,254
1,254
Normalized
1,254
1,254
Prepared
1,254
1,254
Aligned
1,254
1,254
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
0
A: 0 / B: 0
Series A
Entergy Corporation
ETR
Market cap 52.4B · 12,233 employees
Stock · 1,254 raw → 1,254 prepared
Series B
Mastercard Incorporated
MA
Market cap 447.2B
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
7
Estimated crossover points between normalized spreads.
Slope
4.1484
Linear regression slope.
Intercept
167.8983
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 5 hours ago · ID: stock-etr-vs-stock-ma-daily