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Correlation Analysis

Eli Lilly & Co. vs Plains All American Pipeline, L.P. Common Units representing Limited Partner Interests

LLY vs PAA

+0.938

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

PAA logo

Plains All American Pipeline, L.P. Common Units representing Limited Partner Interests

PAA

Plains All American Pipeline LP, through its subsidiaries, engages in the pipeline transportation, terminaling, storage, and gathering of crude oil and natural gas liquids (NGL) in the United States and Canada. The company operates through two segments, Crude Oil and NGL. The Crude Oil segment offers gathering and transporting crude oil through pipelines, gathering systems, trucks, barges, or railcars. The NGL segment is involved in natural gas processing and NGL fractionation, storage, transportation, and terminalling. It generates the majority of its revenue from the Crude Oil segment.

Market cap 15.4B · 4,200 employees

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

Time Series

Relative Performance

Green: LLYGray: PAA36 of 1,254 points (sampled)

Who Moves First

LLY leads PAA by 6 days

LLY tends to move before PAA.

After testing 13 timing shifts, the strongest relationship was +0.941 (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

-0.026

15 periods · Return correlation when both series rose

Both Falling

N/A

4 periods · Return correlation when both series fell

Diverging

-0.527

16 periods · Return correlation when series moved apart

R-Squared

88.0%

Share of variance in one series explained by the other.

Trend Agreement

51.6%

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: [0.931, 0.945]

Scatter

XY Regression

1142004006008001,0001,1427.9481012141618202223.31Eli Lilly & Co.Plains All American Pipeline, L.P. Common Units representing Limited Partner InterestsData pointsFit (r = 0.938)

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

PAA logo

Plains All American Pipeline, L.P. Common Units representing Limited Partner Interests

PAA

Market cap 15.4B · 4,200 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

0.0120

Linear regression slope.

Intercept

7.8228

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

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