Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Cincinnati Financial Corp
BRK.B vs CINF
+0.799
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
Cincinnati Financial Corp
↗CINF
Cincinnati Financial Corp is a property and casualty insurance company that generates income through written premiums. A select group of independent agencies actively markets the company's business, home, and automotive insurance within their communities. These agents offer the company's personal lines as well as its standard market, excess, and surplus commercial line policies in many regions in the United States. Cincinnati Financial also offers leasing and financing services. The company operates in segments: Commercial lines insurance, Personal lines insurance, Excess and surplus lines insurance, Life insurance, and Investments. The vast majority of the company's revenue is generated through commercial lines, followed by personal lines.
Market cap 24.9B · 5,705 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads CINF by 6 days
BRK.B tends to move before CINF.
After testing 13 timing shifts, the strongest relationship was +0.800 (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
+0.072
17 periods · Return correlation when both series rose
Both Falling
-0.180
8 periods · Return correlation when both series fell
Diverging
-0.606
10 periods · Return correlation when series moved apart
R-Squared
63.8%
Share of variance in one series explained by the other.
Trend Agreement
72.8%
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: [0.778, 0.818]
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
Cincinnati Financial Corp
CINF
Market cap 24.9B · 5,705 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
17
Estimated crossover points between normalized spreads.
Slope
0.1914
Linear regression slope.
Intercept
52.4005
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-brk-b-vs-stock-cinf-daily