Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Snap-on Incorporated
BRK.B vs SNA
+0.910
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
Snap-on Incorporated
↗SNA
Snap-on is a manufacturer of premium tools, equipment, and diagnostics for professional technicians, primarily involved in the repair of passenger cars but having expanded into other industrial applications. The company's legacy business is selling hand tools through franchisee-operated mobile vans to technicians who purchase the tools at their own expense. The company also operates a commercial and industrial business that is focused on repair facilities serving other industries. The third segment, repair systems and information, targets auto OEMs and large dealerships more directly and also offers substantial diagnostic solutions to aid repairs. The company's finance arm provides financing to franchisees to run their operations, as well as underwriting end customer purchases.
Market cap 19.1B · 13,000 employees
Time Series
Relative Performance
Who Moves First
in sync
BRK.B and SNA tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.910 (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
15 periods · Return correlation when both series rose
Both Falling
-0.233
7 periods · Return correlation when both series fell
Diverging
-0.556
13 periods · Return correlation when series moved apart
R-Squared
82.9%
Share of variance in one series explained by the other.
Trend Agreement
67.0%
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: [0.900, 0.919]
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
Snap-on Incorporated
SNA
Market cap 19.1B · 13,000 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
23
Estimated crossover points between normalized spreads.
Slope
0.5522
Linear regression slope.
Intercept
63.3437
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 9 hours ago · ID: stock-brk-b-vs-stock-sna-daily