Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Deere & Company
BRK.B vs DE
+0.757
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
Deere & Company
↗DE
Deere is the world's leading manufacturer of agricultural equipment and a major producer of construction machinery. The company is divided into four reporting segments: production & precision agriculture, or PPA, small agriculture & turf, or SAT, construction & forestry, or CF, and financial services, or FS, its captive finance subsidiary. The core PPA business is the largest contributor to sales and profits by far. Geographically, Deere sales are 60% US/Canada, 17% Europe, 14% Latin America, and 9% rest of the world. Deere goes to market through a robust dealer network that includes over 2,000 dealer locations in North America with reach into over 100 countries. John Deere Financial provides retail financing for machinery to its customers and wholesale financing for dealers.
Market cap 155.3B · 73,100 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads DE by 6 days
BRK.B tends to move before DE.
After testing 13 timing shifts, the strongest relationship was +0.757 (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
-0.423
13 periods · Return correlation when both series rose
Both Falling
+0.238
9 periods · Return correlation when both series fell
Diverging
-0.540
13 periods · Return correlation when series moved apart
R-Squared
57.2%
Share of variance in one series explained by the other.
Trend Agreement
65.2%
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: [0.732, 0.779]
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
Deere & Company
DE
Market cap 155.3B · 73,100 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
40
Estimated crossover points between normalized spreads.
Slope
0.5520
Linear regression slope.
Intercept
201.6009
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-brk-b-vs-stock-de-daily