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Correlation Analysis

Ciena Corporation vs Eli Lilly & Co.

CIEN vs LLY

+0.534

Moderate positive

When one moves up, the other tends to follow.

CIEN logo

Ciena Corporation

CIEN

Ciena is a telecommunications equipment provider focused on optical transport technologies, with clients in a number of industries such as communication services providers, web-scale providers, cable operators, government, and large enterprises worldwide. The company provides equipment, software, and services that support transport, switching, aggregation, service delivery, and data traffic management.

Market cap 61.4B · 9,080 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: CIENGray: LLY36 of 1,254 points (sampled)

Who Moves First

LLY leads CIEN by 6 days

LLY tends to move before CIEN.

After testing 13 timing shifts, the strongest relationship was +0.539 (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

+0.503

16 periods · Return correlation when both series rose

Both Falling

N/A

4 periods · Return correlation when both series fell

Diverging

-0.636

15 periods · Return correlation when series moved apart

R-Squared

28.5%

Share of variance in one series explained by the other.

Trend Agreement

56.4%

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: [0.493, 0.572]

Scatter

XY Regression

91002003004004801142004006008001,0001,142Ciena CorporationEli Lilly & Co.Data pointsFit (r = 0.534)

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

CIEN logo

Ciena Corporation

CIEN

Market cap 61.4B · 9,080 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

10

Estimated crossover points between normalized spreads.

Slope

2.1796

Linear regression slope.

Intercept

398.8867

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

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