Correlation Analysis
BERKSHIRE HATHAWAY Class B vs UL Solutions Inc.
BRK.B vs ULS
+0.703
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
UL Solutions Inc.
↗ULS
UL Solutions is a global leader specializing in a broad range of product testing, inspection, and certification services. UL Solutions is the for-profit branch out of three organizations under the UL Enterprise. TIC operations make up nearly all of UL Solutions' total revenue and are composed of two segments: industrial and consumer. UL Solutions' remaining business includes software and advisory, which complements its core TIC offerings. The firm operates globally.
Market cap 16.9B · 14,851 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads ULS by 6 days
BRK.B tends to move before ULS.
After testing 13 timing shifts, the strongest relationship was +0.716 (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
-0.341
16 periods · Return correlation when both series rose
Both Falling
-0.416
10 periods · Return correlation when both series fell
Diverging
-0.800
9 periods · Return correlation when series moved apart
R-Squared
49.4%
Share of variance in one series explained by the other.
Trend Agreement
56.5%
How often both series moved in the same direction period-to-period.
Overlap Quality
497
Robust shared window — 497 usable pairs.
Significance
p < 0.001
95% CI: [0.655, 0.745]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
497 paired data points survived the daily window.
Raw input
1,254
497
Normalized
1,254
497
Prepared
1,254
497
Aligned
497
497
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
757
A: 757 / B: 0
Series A
BERKSHIRE HATHAWAY Class B
BRK.B
Market cap 1T
Stock · 1,254 raw → 1,254 prepared
Series B
UL Solutions Inc.
ULS
Market cap 16.9B · 14,851 employees
Stock · 497 raw → 497 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
34
Estimated crossover points between normalized spreads.
Slope
0.3081
Linear regression slope.
Intercept
-84.6885
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-brk-b-vs-stock-uls-daily