Correlation Analysis
American Water Works Company, Inc vs Mastercard Incorporated
AWK vs MA
-0.506
Moderate inverse
When one moves up, the other tends to move down.
American Water Works Company, Inc
↗AWK
American Water Works is the largest investor-owned US water and wastewater utility, serving nearly 4 million customers in 14 states. It provides water and wastewater services to residential, commercial, and industrial customers and operates predominantly in regulated markets. The company's nonregulated business is water services for military bases, which operates under long-term contracts with regulated-like returns. The proposed Essential Utilities acquisition would add regulated water and wastewater utilities in Ohio, North Carolina, and Texas while increasing its presence in Illinois, Indiana, Pennsylvania, New Jersey, and Virginia.
Market cap 26.9B · 7,000 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
AWK leads MA by 6 days
AWK tends to move before MA.
After testing 13 timing shifts, the strongest relationship was -0.512 (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
-0.230
9 periods · Return correlation when both series rose
Both Falling
+0.109
8 periods · Return correlation when both series fell
Diverging
-0.662
18 periods · Return correlation when series moved apart
R-Squared
25.6%
Share of variance in one series explained by the other.
Trend Agreement
59.6%
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: [-0.546, -0.463]
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
American Water Works Company, Inc
AWK
Market cap 26.9B · 7,000 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
-2.8055
Linear regression slope.
Intercept
836.4236
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
AWK
American Water Works Company, Inc
Highest
+0.053
Johnson & Johnson
JNJ · 1,254 data points
Lowest
-0.720
Exxon Mobil Corporation
XOM · 1,254 data points
Saved 5 hours ago · ID: stock-awk-vs-stock-ma-daily