Correlation Analysis
BERKSHIRE HATHAWAY Class B vs PepsiCo, Inc.
BRK.B vs PEP
-0.477
Moderate 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
PepsiCo, Inc.
↗PEP
PepsiCo is a global leader in snacks and beverages, owning well-known household brands including Pepsi, Mountain Dew, Gatorade, Lay's, Cheetos, and Doritos, among others. The company dominates the global savory snacks market and also ranks as the second-largest beverage provider in the world (behind Coca-Cola) with diversified exposure to carbonated soft drinks, or CSD, as well as water, sports, and energy drink offerings. Convenience foods account for approximately 58% of its total revenue, with beverages making up the rest. Pepsi owns the bulk of its manufacturing and distribution capacity in the US, but uses bottlers overseas for beverages. International markets made up 41% of total sales and 46% of operating profits before corporate expenses in 2025.
Market cap 214.2B
Time Series
Relative Performance
Who Moves First
BRK.B leads PEP by 6 days
BRK.B tends to move before PEP.
After testing 13 timing shifts, the strongest relationship was -0.505 (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
-0.393
15 periods · Return correlation when both series rose
Both Falling
-0.466
6 periods · Return correlation when both series fell
Diverging
-0.720
14 periods · Return correlation when series moved apart
R-Squared
22.8%
Share of variance in one series explained by the other.
Trend Agreement
63.5%
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: [-0.519, -0.433]
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
PepsiCo, Inc.
PEP
Market cap 214.2B
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
-0.0823
Linear regression slope.
Intercept
194.5430
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-brk-b-vs-stock-pep-daily