Correlation Analysis
The Cigna Group vs Johnson & Johnson
CI vs JNJ
-0.223
Light inverse
When one moves up, the other tends to move down.
The Cigna Group
↗CI
Cigna primarily provides pharmacy benefit management and health insurance services. Its PBM and specialty pharmacy services, which were greatly expanded by its 2018 merger with Express Scripts, are mostly sold to health insurance plans and employers. Its largest PBM contract is with the Department of Defense, and it recently won a multiyear deal with top-tier insurer Centene. In health insurance and other benefits, Cigna primarily serves employers through self-funding arrangements, and the company operates mostly in the US with 16 million US and 2 million international medical members covered as of December 2025.
Market cap 72.7B · 67,700 employees
Johnson & Johnson
↗JNJ
Johnson & Johnson is the world's largest and most diverse healthcare firm. It has two divisions: innovative medicine and medtech. These now represent all of the company's sales following the divestment of the consumer business, Kenvue, in 2023. After restructurings in 2023-24, the drug division focuses on three main therapeutic areas: immunology, oncology, and neurology. Geographically, just over half of total revenue is generated in the United States.
Market cap 580.4B
Time Series
Relative Performance
Who Moves First
CI leads JNJ by 6 days
CI tends to move before JNJ.
After testing 13 timing shifts, the strongest relationship was -0.236 (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
+0.027
13 periods · Return correlation when both series rose
Both Falling
+0.345
10 periods · Return correlation when both series fell
Diverging
-0.817
12 periods · Return correlation when series moved apart
R-Squared
5.0%
Share of variance in one series explained by the other.
Trend Agreement
63.2%
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: [-0.275, -0.169]
Scatter
XY Regression
Pipeline
Data quality details
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
The Cigna Group
CI
Market cap 72.7B · 67,700 employees
Stock · 1,254 raw → 1,254 prepared
Series B
Johnson & Johnson
JNJ
Market cap 580.4B
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
30
Estimated crossover points between normalized spreads.
Slope
-0.1090
Linear regression slope.
Intercept
199.6233
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 4 hours ago · ID: stock-ci-vs-stock-jnj-daily