Correlation Analysis
Arthur J. Gallagher & Co. vs Micron Technology, Inc.
AJG vs MU
+0.234
Light positive
When one moves up, the other tends to follow.
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
Micron Technology, Inc.
↗MU
Micron is one of the largest semiconductor companies in the world, specializing in memory and storage chips. Its primary revenue stream comes from dynamic random access memory, or DRAM, and it also has minority exposure to not-and or NAND, flash chips. Micron serves a global customer base, selling chips into data centers, mobile phones, consumer electronics, and industrial and automotive applications. The firm is vertically integrated.
Market cap 426B · 53,000 employees
Time Series
Relative Performance
Who Moves First
AJG leads MU by 6 days
AJG tends to move before MU.
After testing 13 timing shifts, the strongest relationship was +0.255 (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
-0.157
9 periods · Return correlation when both series rose
Both Falling
-0.150
6 periods · Return correlation when both series fell
Diverging
-0.855
20 periods · Return correlation when series moved apart
R-Squared
5.5%
Share of variance in one series explained by the other.
Trend Agreement
54.6%
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: [0.181, 0.286]
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
Micron Technology, Inc.
MU
Market cap 426B · 53,000 employees
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
0.3125
Linear regression slope.
Intercept
36.7213
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-ajg-vs-stock-mu-daily