Correlation Analysis
Mastercard Incorporated vs Public Storage
MA vs PSA
-0.247
Light inverse
When one moves up, the other tends to move down.
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
Public Storage
↗PSA
Public Storage is the largest owner of self-storage facilities in the US, with more than 3,500 self-storage facilities in 40 states and approximately 258 million square feet of rentable space. Through equity interests, it also has exposure to the European self-storage market through Shurgard Self Storage. The company also has a merchandise business, a third-party property management business, and an insurance business that offers products to cover losses for the goods in self-storage facilities.
Market cap 49.3B · 5,770 employees
Time Series
Relative Performance
Who Moves First
MA leads PSA by 6 days
MA tends to move before PSA.
After testing 13 timing shifts, the strongest relationship was -0.263 (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
+0.113
11 periods · Return correlation when both series rose
Both Falling
-0.322
9 periods · Return correlation when both series fell
Diverging
-0.807
15 periods · Return correlation when series moved apart
R-Squared
6.1%
Share of variance in one series explained by the other.
Trend Agreement
60.9%
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: [-0.298, -0.194]
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
Public Storage
PSA
Market cap 49.3B · 5,770 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
15
Estimated crossover points between normalized spreads.
Slope
-0.0870
Linear regression slope.
Intercept
340.4197
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-ma-vs-stock-psa-daily