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Correlation Analysis

Eli Lilly & Co. vs Packaging Corp of America

LLY vs PKG

+0.864

Very strong positive

When one moves up, the other tends to follow.

LLY logo

Eli Lilly & Co.

LLY

Eli Lilly is a drug firm with a focus on neuroscience, cardiometabolic, cancer, and immunology. Lilly's key products include Verzenio for cancer; Mounjaro, Zepbound, Jardiance, Trulicity, Humalog, and Humulin for cardiometabolic; and Taltz and Olumiant for immunology.

Market cap 828.2B · 50,000 employees

PKG logo

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

Apr 9, 2021 — Apr 7, 2026Daily1,254 data pointsStockStockHealthcare

Time Series

Relative Performance

Green: LLYGray: PKG36 of 1,254 points (sampled)

Who Moves First

LLY leads PKG by 6 days

LLY tends to move before PKG.

After testing 13 timing shifts, the strongest relationship was +0.869 (they moved in the same direction).

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

-0.401

14 periods · Return correlation when both series rose

Both Falling

N/A

2 periods · Return correlation when both series fell

Diverging

-0.553

19 periods · Return correlation when series moved apart

R-Squared

74.7%

Share of variance in one series explained by the other.

Trend Agreement

53.1%

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: [0.850, 0.878]

Scatter

XY Regression

1142004006008001,0001,142110.2120140160180200220240255.1Eli Lilly & Co.Packaging Corp of AmericaData pointsFit (r = 0.864)

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

LLY logo

Eli Lilly & Co.

LLY

Market cap 828.2B · 50,000 employees

Stock · 1,254 raw → 1,254 prepared

Series B

PKG logo

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

7

Estimated crossover points between normalized spreads.

Slope

0.1089

Linear regression slope.

Intercept

106.9617

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 6 hours ago · ID: stock-lly-vs-stock-pkg-daily