Correlation Analysis
Amazon.Com Inc vs Packaging Corp of America
AMZN vs PKG
+0.817
Strong positive
When one moves up, the other tends to follow.
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
Packaging Corp of America
↗PKG
Packaging Corp. of America is the third-largest containerboard and corrugated packaging manufacturer in the United States. It produces over 5 million tons of containerboard annually. The company's share of the domestic containerboard market is roughly 10%. PCA differentiates itself from larger competitors by focusing on smaller customers and operating with a high degree of flexibility.
Market cap 18.3B · 16,800 employees
Who Moves First
PKG leads AMZN by 6 days
PKG tends to move before AMZN.
Best correlation after shifting: +0.817 (13 shifts scanned)
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
-0.095
15 periods · Return correlation when both series rose
Both Falling
+0.893
5 periods · Return correlation when both series fell
Diverging
-0.708
15 periods · Return correlation when series moved apart
R-Squared
66.7%
Share of variance in one series explained by the other.
Trend Agreement
57.5%
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 < 0.001
95% CI: [0.798, 0.835]
Time Series
Rebased to 100
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired observations 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
Packaging Corp of America
PKG
Market cap 18.3B · 16,800 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
72
Estimated crossover points between normalized spreads.
Slope
0.6606
Linear regression slope.
Intercept
58.9109
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 3 hours ago · ID: stock-amzn-vs-stock-pkg-daily-20260408-bn7x7h