Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Permian Resources Corporation
BRK.B vs PR
+0.613
Moderate 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

Permian Resources Corporation
↗PR
Permian Resources Corp is an independent oil and natural gas company focused on generating outsized returns to stakeholders through the responsible acquisition, optimization, and development of oil and liquids-rich natural gas assets. The Company's assets and operations are concentrated in the core of the Permian Basin, and its properties consist of large, contiguous acreage blocks located in West Texas and New Mexico.
Market cap 17.2B · 515 employees
Time Series
Relative Performance
Who Moves First
in sync
BRK.B and PR tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.613 (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
+0.304
11 periods · Return correlation when both series rose
Both Falling
-0.065
7 periods · Return correlation when both series fell
Diverging
-0.769
17 periods · Return correlation when series moved apart
R-Squared
37.5%
Share of variance in one series explained by the other.
Trend Agreement
56.0%
How often both series moved in the same direction period-to-period.
Overlap Quality
900
Deep shared window — 900 usable pairs.
Significance
p < 0.001
95% CI: [0.570, 0.652]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
900 paired data points survived the daily window.
Raw input
1,254
900
Normalized
1,254
900
Prepared
1,254
900
Aligned
900
900
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
354
A: 354 / B: 0
Series A
BERKSHIRE HATHAWAY Class B
BRK.B
Market cap 1T
Stock · 1,254 raw → 1,254 prepared
Series B

Permian Resources Corporation
PR
Market cap 17.2B · 515 employees
Stock · 900 raw → 900 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
13
Estimated crossover points between normalized spreads.
Slope
0.0209
Linear regression slope.
Intercept
4.7146
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
BRK.B
BERKSHIRE HATHAWAY Class B
Highest
+0.968
Republic Services Inc.
RSG · 1,254 data points
Lowest
-0.918
United Parcel Service, Inc. Class B
UPS · 1,254 data points
PR
Permian Resources Corporation
Highest
+0.757
Eli Lilly & Co.
LLY · 900 data points
Lowest
+0.262
Johnson & Johnson
JNJ · 900 data points
Saved 7 hours ago · ID: stock-brk-b-vs-stock-pr-daily