Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Jabil Inc.
BRK.B vs JBL
+0.864
Very strong positive
When one moves up, the other tends to follow.
BERKSHIRE HATHAWAY Class B
↗BRK.B
Berkshire Hathaway is a holding company with a wide array of subsidiaries engaged in diverse activities. The firm's core business segment is insurance, run primarily through Geico, Berkshire Hathaway Reinsurance Group, and Berkshire Hathaway Primary Group. Berkshire has used the excess cash thrown off from its operations to acquire Burlington Northern Santa Fe (railroad), Berkshire Hathaway Energy (utilities and energy distributors), and the companies that make up its manufacturing, service, and retailing operations (which include Precision Castparts, Lubrizol, Clayton Homes, Marmon, and IMC/ISCAR). The conglomerate is unique in that it is run on a completely decentralized basis. Berkshire is expected to generate close to $375 billion in revenue in 2025.
Market cap 1T
Jabil Inc.
↗JBL
Jabil Inc. is a U.S based company providing engineering, manufacturing, and supply chain solutions. It provides comprehensive electronics design, production, and product management services to companies in various industries and end markets. It operates through three segments: Regulated Industries, serving automotive, healthcare, and renewables; Intelligent Infrastructure, focused on AI, cloud, data centers, and communications, driving the majority of revenue; and Connected Living and Digital Commerce, specializing in digitalization and automation, such as robotics and warehouse automation. The company operates in the U.S., Mexico, China, Malaysia, Singapore, and several other markets.
Market cap 28.2B · 135,000 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads JBL by 6 days
BRK.B tends to move before JBL.
After testing 13 timing shifts, the strongest relationship was +0.866 (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
-0.079
14 periods · Return correlation when both series rose
Both Falling
N/A
4 periods · Return correlation when both series fell
Diverging
-0.609
17 periods · Return correlation when series moved apart
R-Squared
74.6%
Share of variance in one series explained by the other.
Trend Agreement
61.4%
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: [0.849, 0.877]
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
BERKSHIRE HATHAWAY Class B
BRK.B
Market cap 1T
Stock · 1,254 raw → 1,254 prepared
Series B
Jabil Inc.
JBL
Market cap 28.2B · 135,000 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
28
Estimated crossover points between normalized spreads.
Slope
0.6055
Linear regression slope.
Intercept
-113.1453
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-brk-b-vs-stock-jbl-daily