Correlation Analysis
Amazon.Com Inc vs Public Storage
AMZN vs PSA
-0.058
Weak inverse
When one moves up, the other tends to move down.
Amazon.Com Inc
↗AMZN
Amazon is the leading online retailer and marketplace for third party sellers. Retail related revenue represents approximately 74% of total, followed by Amazon Web Services (17%), and advertising services (9%). International segments constitute 22% of Amazon's total revenue, led by Germany, the United Kingdom, and Japan.
Market cap 2.3T
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
PSA leads AMZN by 6 days
PSA tends to move before AMZN.
After testing 13 timing shifts, the strongest relationship was -0.077 (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
+0.047
13 periods · Return correlation when both series rose
Both Falling
+0.460
8 periods · Return correlation when both series fell
Diverging
-0.883
14 periods · Return correlation when series moved apart
R-Squared
0.3%
Share of variance in one series explained by the other.
Trend Agreement
53.5%
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 < 0.05
95% CI: [-0.113, -0.003]
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
Amazon.Com Inc
AMZN
Market cap 2.3T
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
28
Estimated crossover points between normalized spreads.
Slope
-0.0415
Linear regression slope.
Intercept
309.7297
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 5 hours ago · ID: stock-amzn-vs-stock-psa-daily-20260408-xs8zbe