Correlation Analysis
Mastercard Incorporated vs PG&E Corporation
MA vs PCG
+0.538
Moderate positive
When one moves up, the other tends to follow.
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
PG&E Corporation
↗PCG
PG&E is a holding company whose main subsidiary is Pacific Gas and Electric, a regulated utility operating in Central and Northern California that serves 5.3 million electricity customers and 4.6 million gas customers in 47 of the state's 58 counties. PG&E operated under bankruptcy court supervision in 2001-04 during California's energy crisis and in 2019-20 due to wildfire losses. In 2004, PG&E sold its unregulated assets as part of its first postbankruptcy reorganization.
Market cap 38.8B · 29,000 employees
Time Series
Relative Performance
Who Moves First
PCG leads MA by 6 days
PCG tends to move before MA.
After testing 13 timing shifts, the strongest relationship was +0.545 (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
+0.080
10 periods · Return correlation when both series rose
Both Falling
-0.092
6 periods · Return correlation when both series fell
Diverging
-0.667
19 periods · Return correlation when series moved apart
R-Squared
28.9%
Share of variance in one series explained by the other.
Trend Agreement
57.8%
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: [0.497, 0.576]
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
Mastercard Incorporated
MA
Market cap 447.2B
Stock · 1,254 raw → 1,254 prepared
Series B
PG&E Corporation
PCG
Market cap 38.8B · 29,000 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
0.0187
Linear regression slope.
Intercept
7.0692
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-ma-vs-stock-pcg-daily