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Correlation Analysis

The Hershey Company vs Eli Lilly & Co.

HSY vs LLY

-0.307

Light inverse

When one moves up, the other tends to move down.

HSY logo

The Hershey Company

HSY

Hershey is a leading US confectionery manufacturer (around a $55 billion market, according to Euromonitor), controlling 35% of the domestic chocolate aisle. Beyond its namesake label, the firm's portfolio has expanded over the last 85 years and now comprises 100 brands, including Reese's, Kit Kat, Kisses, and Ice Breakers. Hershey's products are sold in about 80 countries, albeit with just a high-single-digit percentage of sales coming from markets outside the US, including Brazil, India, and Mexico. The firm has sought inorganic opportunities to extend its reach beyond its core confectionery business, adding Amplify Snack Brands and its Skinny Pop ready-to-eat popcorn to its portfolio, as well as Pirate Brands, Dot's Pretzels, and LesserEvil over the past few years.

Market cap 42.2B · 19,595 employees

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

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

Time Series

Relative Performance

Green: HSYGray: LLY36 of 1,254 points (sampled)

Who Moves First

LLY leads HSY by 6 days

LLY tends to move before HSY.

After testing 13 timing shifts, the strongest relationship was -0.322 (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

+0.346

12 periods · Return correlation when both series rose

Both Falling

-0.284

5 periods · Return correlation when both series fell

Diverging

-0.623

18 periods · Return correlation when series moved apart

R-Squared

9.4%

Share of variance in one series explained by the other.

Trend Agreement

56.9%

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: [-0.356, -0.256]

Scatter

XY Regression

147.6160180200220240260267.71142004006008001,0001,142The Hershey CompanyEli Lilly & Co.Data pointsFit (r = -0.307)

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

HSY logo

The Hershey Company

HSY

Market cap 42.2B · 19,595 employees

Stock · 1,254 raw → 1,254 prepared

Series B

LLY logo

Eli Lilly & Co.

LLY

Market cap 828.2B · 50,000 employees

Stock · 1,254 raw → 1,254 prepared

Sign agreement

100.0%

How often both values share the same sign.

Zero crossings

5

Estimated crossover points between normalized spreads.

Slope

-3.1097

Linear regression slope.

Intercept

1188.0009

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 7 hours ago · ID: stock-hsy-vs-stock-lly-daily