Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Home Depot, Inc.
BRK.B vs HD
+0.656
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
Home Depot, Inc.
↗HD
Home Depot is the world's largest home improvement specialty retailer, operating 2,359 warehouse-format stores offering more than 30,000 products in store and 1 million products online in the US, Canada, and Mexico. Its stores offer building materials, home improvement products, lawn and garden products, and decor products and provide various services, including home improvement installation services and tool and equipment rentals. The acquisition of Interline Brands in 2015 allowed Home Depot to enter the MRO business, which has been expanded through the tie-up with HD Supply (2020). The 2024 tie-up with SRS will help grow professional demand in roofing, pool, and landscaping projects, while the 2025 purchase of GMS will lift building product sales through 1,250 distribution locations.
Market cap 325.3B
Time Series
Relative Performance
Who Moves First
HD leads BRK.B by 6 days
HD tends to move before BRK.B.
After testing 13 timing shifts, the strongest relationship was +0.664 (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
-0.047
15 periods · Return correlation when both series rose
Both Falling
+0.171
9 periods · Return correlation when both series fell
Diverging
-0.612
11 periods · Return correlation when series moved apart
R-Squared
43.0%
Share of variance in one series explained by the other.
Trend Agreement
65.5%
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: [0.623, 0.686]
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
Home Depot, Inc.
HD
Market cap 325.3B
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
31
Estimated crossover points between normalized spreads.
Slope
0.3055
Linear regression slope.
Intercept
227.0371
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-brk-b-vs-stock-hd-daily