Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Weyerhaeuser Company
BRK.B vs WY
-0.721
Strong inverse
When one moves up, the other tends to move down.
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
Weyerhaeuser Company
↗WY
Weyerhaeuser Co ranks among the world's key forest product companies. Following the 2016 sale of its pulp business to International Paper, Weyerhaeuser operates three business segments: timberlands, wood products, and real estate. Weyerhaeuser is structured as a real estate investment trust and is not required to pay federal income taxes on earnings generated by timber harvest activities. Earnings from its wood products segment are subject to federal income tax. Weyerhaeuser acquired fellow timber REIT Plum Creek in 2016.
Market cap 17.4B · 9,517 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads WY by 6 days
BRK.B tends to move before WY.
After testing 13 timing shifts, the strongest relationship was -0.727 (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
-0.076
13 periods · Return correlation when both series rose
Both Falling
-0.028
10 periods · Return correlation when both series fell
Diverging
-0.584
12 periods · Return correlation when series moved apart
R-Squared
51.9%
Share of variance in one series explained by the other.
Trend Agreement
67.5%
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: [-0.746, -0.693]
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
Weyerhaeuser Company
WY
Market cap 17.4B · 9,517 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
-0.0401
Linear regression slope.
Intercept
46.9298
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-brk-b-vs-stock-wy-daily