Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Electronic Arts Inc
BRK.B vs EA
+0.663
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
Electronic Arts Inc
↗EA
Electronic Arts is one of the largest global developers and publishers of video games. Its most important franchises are the Madden NFL and FC soccer games, which it releases annually. In 2024, it also relaunched its American college football game. Other major franchises include Apex Legends, Battlefield, and The Sims. Typically, about three quarters of the firm's sales are from in-game spending, with the remainder coming from initial game sales.
Market cap 51.1B · 14,500 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads EA by 6 days
BRK.B tends to move before EA.
After testing 13 timing shifts, the strongest relationship was +0.668 (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
+0.033
11 periods · Return correlation when both series rose
Both Falling
N/A
3 periods · Return correlation when both series fell
Diverging
-0.729
21 periods · Return correlation when series moved apart
R-Squared
43.9%
Share of variance in one series explained by the other.
Trend Agreement
60.8%
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: [0.630, 0.693]
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
Electronic Arts Inc
EA
Market cap 51.1B · 14,500 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
0.1858
Linear regression slope.
Intercept
72.1620
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-brk-b-vs-stock-ea-daily