Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Chipotle Mexican Grill, Inc.
BRK.B vs CMG
+0.623
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
Chipotle Mexican Grill, Inc.
↗CMG
Chipotle is a leading fast-casual, Mexican-inspired restaurant chain, generating $11.9 billion in sales across 3,983 company-operated US locations, 104 international units primarily in Canada and Europe, and 14 licensed stores largely operated in the Middle East at the end of 2025. The firm's revenue is primarily driven by food and beverage sales at its company-owned restaurants, supplemented by delivery fees generated through its first-party digital channels. Chipotle emphasizes ingredients with no artificial flavors and utilizes an efficient, assembly line service model to serve mainly customizable burritos, bowls, salads, quesadillas, and tacos.
Market cap 43.6B · 130,301 employees
Time Series
Relative Performance
Who Moves First
CMG leads BRK.B by 6 days
CMG tends to move before BRK.B.
After testing 13 timing shifts, the strongest relationship was +0.634 (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
+0.011
9 periods · Return correlation when both series rose
Both Falling
N/A
4 periods · Return correlation when both series fell
Diverging
-0.632
22 periods · Return correlation when series moved apart
R-Squared
38.9%
Share of variance in one series explained by the other.
Trend Agreement
59.0%
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: [0.588, 0.656]
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
Chipotle Mexican Grill, Inc.
CMG
Market cap 43.6B · 130,301 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
9
Estimated crossover points between normalized spreads.
Slope
0.0822
Linear regression slope.
Intercept
9.9729
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
CMG
Chipotle Mexican Grill, Inc.
Highest
+0.678
Eli Lilly & Co.
LLY · 1,254 data points
Lowest
-0.427
Johnson & Johnson
JNJ · 1,254 data points
Saved 6 hours ago · ID: stock-brk-b-vs-stock-cmg-daily