Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Keysight Technologies, Inc.
BRK.B vs KEYS
+0.236
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
Keysight Technologies, Inc.
↗KEYS
Keysight Technologies is a leader in the field of testing and measurement, helping electronics OEMs and suppliers alike bring products to market to fit industry standards and specifications. Keysight specializes in the communications market, but also supplies into the government, automotive, industrial, and semiconductor manufacturing markets. Keysight's solutions include testing tools, analytical software, and services. The firm's stated objective is to reduce time to market and improve efficiency at its more than 30,000 customers.
Market cap 50.2B · 16,600 employees
Time Series
Relative Performance
Who Moves First
in sync
BRK.B and KEYS tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.236 (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
-0.052
14 periods · Return correlation when both series rose
Both Falling
N/A
4 periods · Return correlation when both series fell
Diverging
-0.541
17 periods · Return correlation when series moved apart
R-Squared
5.6%
Share of variance in one series explained by the other.
Trend Agreement
60.7%
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: [0.183, 0.288]
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
Keysight Technologies, Inc.
KEYS
Market cap 50.2B · 16,600 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
22
Estimated crossover points between normalized spreads.
Slope
0.0790
Linear regression slope.
Intercept
134.0374
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 9 hours ago · ID: stock-brk-b-vs-stock-keys-daily