Correlation Analysis
BERKSHIRE HATHAWAY Class B vs BWX Technologies, Inc.
BRK.B vs BWXT
+0.850
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
BWX Technologies, Inc.
↗BWXT
BWX Technologies Inc is a specialty manufacturer and service provider of nuclear components, operating in two segments: Government Operations and Commercial Operations. The Government Operations segment produces naval nuclear reactors and fuel for the U.S. Naval Nuclear Propulsion Program, while the Commercial Operations segment designs and manufactures commercial nuclear steam generators, heat exchangers, pressure vessels, reactor components, and other auxiliary equipment, including containers for the storage of spent nuclear fuel and other high-level nuclear waste. The majority of the company's revenue comes from Government Operations, with sales principally in the United States, Canada, and other regions.
Market cap 19.8B · 10,400 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads BWXT by 6 days
BRK.B tends to move before BWXT.
After testing 13 timing shifts, the strongest relationship was +0.854 (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
-0.018
14 periods · Return correlation when both series rose
Both Falling
+0.141
6 periods · Return correlation when both series fell
Diverging
-0.523
15 periods · Return correlation when series moved apart
R-Squared
72.2%
Share of variance in one series explained by the other.
Trend Agreement
61.1%
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: [0.834, 0.864]
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
BWX Technologies, Inc.
BWXT
Market cap 19.8B · 10,400 employees
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
0.4635
Linear regression slope.
Intercept
-83.3600
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-brk-b-vs-stock-bwxt-daily