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Correlation Analysis

BERKSHIRE HATHAWAY Class B vs W.P. Carey Inc. (REIT)

BRK.B vs WPC

-0.664

Strong inverse

When one moves up, the other tends to move down.

BRK.B logo

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

WPC logo

W.P. Carey Inc. (REIT)

WPC

W.P. Carey Inc is a real estate investment trust principally involved in the ownership of properties located in the U.S., Western Europe, and Northern Europe. W.P. Carey organizes its operations into Real Estate and Investment Management segments. The vast majority of the company's income is derived from its Real Estate division in the form of lease revenue from long-term agreements with companies. W.P. Carey's real estate portfolio is comprised of single-tenant office, industrial, warehouse, and retail facilities located around the world. majority of the company's revenue comes from properties in the USA. Its Investment Management unit generates revenue from providing real estate advisory and portfolio management services to other REITs.

Market cap 15.3B · 199 employees

Apr 9, 2021 — Apr 7, 2026Daily1,254 data pointsStockStock

Time Series

Relative Performance

Green: BRK.BGray: WPC36 of 1,254 points (sampled)

Who Moves First

WPC leads BRK.B by 6 days

WPC tends to move before BRK.B.

After testing 13 timing shifts, the strongest relationship was -0.679 (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

+0.055

15 periods · Return correlation when both series rose

Both Falling

-0.180

9 periods · Return correlation when both series fell

Diverging

-0.641

11 periods · Return correlation when series moved apart

R-Squared

44.0%

Share of variance in one series explained by the other.

Trend Agreement

61.2%

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: [-0.694, -0.632]

Scatter

XY Regression

247250300350400450500522.150.160708088.9BERKSHIRE HATHAWAY Class BW.P. Carey Inc. (REIT)Data pointsFit (r = -0.664)

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

BRK.B logo

BERKSHIRE HATHAWAY Class B

BRK.B

Market cap 1T

Stock · 1,254 raw → 1,254 prepared

Series B

WPC logo

W.P. Carey Inc. (REIT)

WPC

Market cap 15.3B · 199 employees

Stock · 1,254 raw → 1,254 prepared

Sign agreement

100.0%

How often both values share the same sign.

Zero crossings

1

Estimated crossover points between normalized spreads.

Slope

-0.0758

Linear regression slope.

Intercept

97.9217

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 6 hours ago · ID: stock-brk-b-vs-stock-wpc-daily