Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Sysco Corporation
BRK.B vs SYY
-0.168
Weak 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
Sysco Corporation
↗SYY
Sysco is the largest US foodservice distributor with 18% share of the highly fragmented $377 billion domestic market. It distributes roughly 500,000 food and nonfood products to restaurants (60% of fiscal 2025 revenue), education and government buildings (8%), healthcare facilities (8%), travel and leisure (7%), and other locations (17%) where individuals consume away-from-home meals. In fiscal 2025, 70% of the firm's revenue was derived from its US foodservice operations, while its international (18%), quick-service logistics (10%), and other (2%) segments contributed the rest.
Market cap 35B · 75,000 employees
Time Series
Relative Performance
Who Moves First
SYY leads BRK.B by 6 days
SYY tends to move before BRK.B.
After testing 13 timing shifts, the strongest relationship was -0.180 (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
-0.140
14 periods · Return correlation when both series rose
Both Falling
+0.111
9 periods · Return correlation when both series fell
Diverging
-0.772
12 periods · Return correlation when series moved apart
R-Squared
2.8%
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: [-0.221, -0.113]
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
Sysco Corporation
SYY
Market cap 35B · 75,000 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
-0.0100
Linear regression slope.
Intercept
80.9617
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-brk-b-vs-stock-syy-daily