Correlation Analysis
Arthur J. Gallagher & Co. vs Johnson & Johnson
AJG vs JNJ
-0.146
Weak inverse
When one moves up, the other tends to move down.
Arthur J. Gallagher & Co.
↗AJG
Founded in 1927 as a one-person agency, Gallagher's primary business is insurance brokerage, with a focus on serving middle-market companies. The company's risk management segment provides third-party claims adjustment to companies that choose to self-insure. Gallagher has about 72,000 employees and generates about a third of its revenue internationally, primarily in Australia, Canada, New Zealand, and the UK.
Market cap 56.3B · 72,000 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
JNJ leads AJG by 6 days
JNJ tends to move before AJG.
After testing 13 timing shifts, the strongest relationship was -0.174 (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
+0.708
10 periods · Return correlation when both series rose
Both Falling
-0.705
5 periods · Return correlation when both series fell
Diverging
-0.826
20 periods · Return correlation when series moved apart
R-Squared
2.1%
Share of variance in one series explained by the other.
Trend Agreement
60.4%
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: [-0.200, -0.091]
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
Arthur J. Gallagher & Co.
AJG
Market cap 56.3B · 72,000 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
16
Estimated crossover points between normalized spreads.
Slope
-0.0490
Linear regression slope.
Intercept
179.5325
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 4 hours ago · ID: stock-ajg-vs-stock-jnj-daily