Correlation Analysis
KeyCorp vs Mastercard Incorporated
KEY vs MA
-0.078
Weak inverse
When one moves up, the other tends to move down.
KeyCorp
↗KEY
With assets of around $185 billion, Ohio-based KeyCorp's bank footprint spans 15 states, but it is predominantly concentrated in its three largest markets: Ohio, New York, and Washington. KeyCorp is primarily focused on serving middle-market commercial clients through a hybrid community/corporate bank model.
Market cap 22.2B · 17,883 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
KEY leads MA by 6 days
KEY tends to move before MA.
After testing 13 timing shifts, the strongest relationship was -0.103 (they moved in opposite directions).
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
+0.081
12 periods · Return correlation when both series rose
Both Falling
-0.009
10 periods · Return correlation when both series fell
Diverging
-0.651
13 periods · Return correlation when series moved apart
R-Squared
0.6%
Share of variance in one series explained by the other.
Trend Agreement
62.3%
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 < 0.01
95% CI: [-0.133, -0.023]
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
KeyCorp
KEY
Market cap 22.2B · 17,883 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
5
Estimated crossover points between normalized spreads.
Slope
-1.7125
Linear regression slope.
Intercept
462.0829
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-key-vs-stock-ma-daily