Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Keurig Dr Pepper Inc.
BRK.B vs KDP
-0.595
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
Keurig Dr Pepper Inc.
↗KDP
Keurig Dr Pepper was established in 2018 following a merger between Keurig Green Mountain Coffee and Dr Pepper Snapple. The company manufactures and distributes coffee systems (including coffee brewers and single-serve coffee pods) under the Keurig and Green Mountain brands, as well as ready-to-drink beverages including flavored (non-cola) sparkling soft drinks under well-known brands such as Dr Pepper, Snapple, and Canada Dry. On Aug. 25, 2025, the firm announced a definitive agreement to acquire coffeemaker JDE Peet's for $18 billion in cash, with the deal now scheduled to close in April 2026. Following the merger, it plans to split into two US-listed entities to focus on refreshment beverages in North America and global coffee separately.
Market cap 34.9B · 30,600 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads KDP by 6 days
BRK.B tends to move before KDP.
After testing 13 timing shifts, the strongest relationship was -0.600 (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
+0.090
11 periods · Return correlation when both series rose
Both Falling
+0.495
8 periods · Return correlation when both series fell
Diverging
-0.403
16 periods · Return correlation when series moved apart
R-Squared
35.4%
Share of variance in one series explained by the other.
Trend Agreement
62.3%
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: [-0.630, -0.558]
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
Keurig Dr Pepper Inc.
KDP
Market cap 34.9B · 30,600 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
-0.0226
Linear regression slope.
Intercept
42.2500
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-brk-b-vs-stock-kdp-daily