Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Williams-Sonoma, Inc.
BRK.B vs WSM
+0.899
Very 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
Williams-Sonoma, Inc.
↗WSM
With a retail and direct-to-consumer presence, Williams-Sonoma is a player in the nearly $300 billion domestic home category and $450 billion international home market, focused on expanding its exposure in the B2B ($80 billion total addressable market), marketplace, and franchise areas. Namesake Williams-Sonoma (152 stores) offers high-end cooking essentials, while Pottery Barn (183) provides casual home accessories. West Elm (120) is an emerging concept for young professionals, and Rejuvenation (13) offers lighting and house parts. Brand extensions include Pottery Barn Kids and Pottery Barn Teen (45) as well as Mark & Graham and GreenRow. Williams-Sonoma also has a business-to-business team that supports projects that range from residential to large-scale commercial.
Market cap 21.7B · 19,800 employees
Time Series
Relative Performance
Who Moves First
in sync
BRK.B and WSM tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.899 (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
+0.024
12 periods · Return correlation when both series rose
Both Falling
+0.241
6 periods · Return correlation when both series fell
Diverging
-0.398
17 periods · Return correlation when series moved apart
R-Squared
80.9%
Share of variance in one series explained by the other.
Trend Agreement
59.2%
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: [0.888, 0.909]
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
Williams-Sonoma, Inc.
WSM
Market cap 21.7B · 19,800 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
53
Estimated crossover points between normalized spreads.
Slope
0.5469
Linear regression slope.
Intercept
-91.9042
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-brk-b-vs-stock-wsm-daily