Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Cognizant Technology Solutions
BRK.B vs CTSH
+0.257
Light 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
Cognizant Technology Solutions
↗CTSH
Cognizant Technology Solutions is a multinational IT services provider that offers a range of consulting and business process outsourcing services. Originally founded in India, the company is headquartered in the US and serves enterprise customers spanning the financial services, healthcare, and resources industries. With most of its workforce located in India, Cognizant leverages a global delivery model that helps clients outsource their IT needs to offshore labor.
Market cap 29.8B · 351,600 employees
Time Series
Relative Performance
Who Moves First
CTSH leads BRK.B by 6 days
CTSH tends to move before BRK.B.
After testing 13 timing shifts, the strongest relationship was +0.263 (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
-0.219
15 periods · Return correlation when both series rose
Both Falling
+0.598
10 periods · Return correlation when both series fell
Diverging
-0.498
10 periods · Return correlation when series moved apart
R-Squared
6.6%
Share of variance in one series explained by the other.
Trend Agreement
67.0%
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: [0.204, 0.308]
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
Cognizant Technology Solutions
CTSH
Market cap 29.8B · 351,600 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
0.0250
Linear regression slope.
Intercept
63.1051
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
CTSH
Cognizant Technology Solutions
Highest
+0.338
NetFlix Inc
NFLX · 1,254 data points
Lowest
-0.295
Exxon Mobil Corporation
XOM · 1,254 data points
Saved 6 hours ago · ID: stock-brk-b-vs-stock-ctsh-daily