Correlation Analysis
BERKSHIRE HATHAWAY Class B vs ITT Inc.
BRK.B vs ITT
+0.904
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
ITT Inc.
↗ITT
ITT began its journey as International Telephone & Telegraph in 1920. Through decades of acquisitions in the mid-1900s, ITT went from manufacturing telephone switching equipment to operating hotels, car rentals, insurance agencies, and bread bakeries. In 1995, the firm split into three separate entities, one of which is the ITT in current operation. After a few more spinoffs in 2011, today ITT Inc. sells automotive, industrial, and aerospace products such as brake pads, seals, pumps, valves, connectors, and regulators. It has operations around the globe with notable exposures to North America, Europe, and Asia.
Market cap 17.4B · 11,600 employees
Time Series
Relative Performance
Who Moves First
in sync
BRK.B and ITT tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.904 (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
-0.286
16 periods · Return correlation when both series rose
Both Falling
-0.493
7 periods · Return correlation when both series fell
Diverging
-0.658
12 periods · Return correlation when series moved apart
R-Squared
81.6%
Share of variance in one series explained by the other.
Trend Agreement
67.3%
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: [0.893, 0.913]
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
ITT Inc.
ITT
Market cap 17.4B · 11,600 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
13
Estimated crossover points between normalized spreads.
Slope
0.3894
Linear regression slope.
Intercept
-30.7778
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-brk-b-vs-stock-itt-daily