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Correlation Analysis

CVS HEALTH CORPORATION vs Eli Lilly & Co.

CVS vs LLY

-0.692

Strong inverse

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

CVS logo

CVS HEALTH CORPORATION

CVS

CVS Health offers a diverse set of healthcare services. Its roots are in its retail pharmacy operations, where it operates over 9,000 stores primarily in the US. CVS is also a large pharmacy benefit manager (acquired through Caremark), processing about 2 billion adjusted claims annually. It operates a top-tier health insurer (acquired through Aetna) through which it serves about 27 million medical members. The acquisition of Oak Street Health added primary care services to the mix, which could have significant synergies with all existing business lines.

Market cap 93.9B · 300,000 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 pointsStockStockHealthcareHealthcare

Time Series

Relative Performance

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

Who Moves First

LLY leads CVS by 6 days

LLY tends to move before CVS.

After testing 13 timing shifts, the strongest relationship was -0.699 (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

-0.089

10 periods · Return correlation when both series rose

Both Falling

+0.713

6 periods · Return correlation when both series fell

Diverging

-0.237

19 periods · Return correlation when series moved apart

R-Squared

47.9%

Share of variance in one series explained by the other.

Trend Agreement

59.0%

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: [-0.720, -0.662]

Scatter

XY Regression

39405060708090100107.71142004006008001,0001,142CVS HEALTH CORPORATIONEli Lilly & Co.Data pointsFit (r = -0.692)

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

CVS logo

CVS HEALTH CORPORATION

CVS

Market cap 93.9B · 300,000 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

-12.6700

Linear regression slope.

Intercept

1555.5212

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 4 hours ago · ID: stock-cvs-vs-stock-lly-daily