Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Dick's Sporting Goods, Inc.
BRK.B vs DKS
+0.892
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
Dick's Sporting Goods, Inc.
↗DKS
Dick's Sporting Goods is a retailer that offers sports and outdoor apparel, footwear, and equipment online and in physical stores. The company's legacy business includes more than 700 stores under its own name, more than 110 Golf Galaxy golf specialty stores, and about 50 outlet stores. In September 2025, Dick's acquired multinational retailer Foot Locker. With this move, Dick's added about 2,600 stores under the Foot Locker, Kids Foot Locker, Champs Sports, atmos, and WSS nameplates in North America, the Asia-Pacific, and EMEA—Europe, the Middle East, and Africa. Based in the Pittsburgh area, Dick's was founded in 1948 by the father of current executive chair and controlling shareholder Edward Stack.
Market cap 17.8B · 105,200 employees
Time Series
Relative Performance
Who Moves First
DKS leads BRK.B by 6 days
DKS tends to move before BRK.B.
After testing 13 timing shifts, the strongest relationship was +0.894 (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
+0.055
10 periods · Return correlation when both series rose
Both Falling
+0.318
5 periods · Return correlation when both series fell
Diverging
-0.618
20 periods · Return correlation when series moved apart
R-Squared
79.6%
Share of variance in one series explained by the other.
Trend Agreement
61.6%
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: [0.880, 0.903]
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
Dick's Sporting Goods, Inc.
DKS
Market cap 17.8B · 105,200 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
43
Estimated crossover points between normalized spreads.
Slope
0.5244
Linear regression slope.
Intercept
-43.2714
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
DKS
Dick's Sporting Goods, Inc.
Highest
+0.894
Eli Lilly & Co.
LLY · 1,254 data points
Lowest
+0.080
Johnson & Johnson
JNJ · 1,254 data points
Saved 9 hours ago · ID: stock-brk-b-vs-stock-dks-daily