Correlation Analysis
BERKSHIRE HATHAWAY Class B vs NVR, Inc.
BRK.B vs NVR
+0.845
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
NVR, Inc.
↗NVR
NVR Inc is engaged in the construction and sale of residential properties, including single-family detached homes, townhomes, and condominium buildings, all of which are built on a pre-sold basis. Additionally, the company provides related services through its mortgage banking and title services businesses. Its business segments are Homebuilding and Mortgage Banking. Its geographical segments include the Mid Atlantic, the North East, the Mid East, and the South East regions of America. The majority of the company's revenue is derived from the Homebuilding Mid Atlantic segment, which includes homebuilding operations that construct and sell single-family detached homes, townhomes and condominiums in Maryland, Virginia, West Virginia, Delaware and Washington, D.C. regions.
Market cap 18.7B · 6,300 employees
Time Series
Relative Performance
Who Moves First
NVR leads BRK.B by 6 days
NVR tends to move before BRK.B.
After testing 13 timing shifts, the strongest relationship was +0.851 (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
+0.193
15 periods · Return correlation when both series rose
Both Falling
+0.161
8 periods · Return correlation when both series fell
Diverging
-0.796
12 periods · Return correlation when series moved apart
R-Squared
71.4%
Share of variance in one series explained by the other.
Trend Agreement
64.2%
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: [0.828, 0.860]
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
NVR, Inc.
NVR
Market cap 18.7B · 6,300 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
15.2738
Linear regression slope.
Intercept
561.3820
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-brk-b-vs-stock-nvr-daily