Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Qnity Electronics, Inc.
BRK.B vs Q
-0.557
Moderate inverse
When one moves up, the other tends to move down.
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
Qnity Electronics, Inc.
↗Q
Qnity Electronics Inc is a specialty chemicals company created in 2025 after being spun off from DuPont. It sells chemicals and materials to the semiconductor industry, which generates the majority of sales, and also the electronics industry. The two segments are Semiconductor Technologies segment which provides a portfolio of materials and solutions utilized across multiple stages of the semiconductor manufacturing process. Interconnect Solutions segment offers a comprehensive range of material solutions that address the evolving complexities of signal integrity, thermal and power management and packaging. These solutions are integral for electronics hardware, including complex printed circuit boards and semiconductor packaging.
Market cap 24.9B
Time Series
Relative Performance
Who Moves First
Q leads BRK.B by 1 day
Q tends to move before BRK.B.
After testing 13 timing shifts, the strongest relationship was -0.570 (they moved in opposite directions).
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
+0.677
8 periods · Return correlation when both series rose
Both Falling
+0.482
7 periods · Return correlation when both series fell
Diverging
-0.608
20 periods · Return correlation when series moved apart
R-Squared
31.1%
Share of variance in one series explained by the other.
Trend Agreement
44.8%
How often both series moved in the same direction period-to-period.
Overlap Quality
106
Usable shared window — 106 usable pairs.
Significance
p < 0.001
95% CI: [-0.676, -0.410]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
106 paired data points survived the daily window.
Raw input
1,254
106
Normalized
1,254
106
Prepared
1,254
106
Aligned
106
106
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,148
A: 1148 / B: 0
Series A
BERKSHIRE HATHAWAY Class B
BRK.B
Market cap 1T
Stock · 1,254 raw → 1,254 prepared
Series B
Qnity Electronics, Inc.
Q
Market cap 24.9B
Stock · 106 raw → 106 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
4
Estimated crossover points between normalized spreads.
Slope
-0.7948
Linear regression slope.
Intercept
490.7852
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-brk-b-vs-stock-q-daily