Correlation Analysis
AvalonBay Communities, Inc. vs BERKSHIRE HATHAWAY Class B
AVB vs BRK.B
-0.072
Weak inverse
When one moves up, the other tends to move down.
AvalonBay Communities, Inc.
↗AVB
AvalonBay Communities owns a portfolio of 296 apartment communities with more than 90,000 units and is developing 24 additional properties with approximately 8,600 units. The company focuses on owning large, high-quality properties in major metropolitan areas of New England, New York/New Jersey, Washington, D.C., California, and the Pacific Northwest.
Market cap 23.3B · 3,041 employees
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
Time Series
Relative Performance
Who Moves First
BRK.B leads AVB by 6 days
BRK.B tends to move before AVB.
After testing 13 timing shifts, the strongest relationship was -0.082 (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
+0.163
14 periods · Return correlation when both series rose
Both Falling
+0.406
9 periods · Return correlation when both series fell
Diverging
-0.601
12 periods · Return correlation when series moved apart
R-Squared
0.5%
Share of variance in one series explained by the other.
Trend Agreement
65.7%
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 < 0.05
95% CI: [-0.127, -0.017]
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
AvalonBay Communities, Inc.
AVB
Market cap 23.3B · 3,041 employees
Stock · 1,254 raw → 1,254 prepared
Series B
BERKSHIRE HATHAWAY Class B
BRK.B
Market cap 1T
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
11
Estimated crossover points between normalized spreads.
Slope
-0.2509
Linear regression slope.
Intercept
429.4853
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-avb-vs-stock-brk-b-daily