Correlation Analysis
Meta Platforms, Inc. Class A Common Stock vs BERKSHIRE HATHAWAY Class B
META vs BRK.B
+0.954
Very strong positive
When one moves up, the other tends to follow.
Meta Platforms, Inc. Class A Common Stock
↗META
Meta is the largest social media company in the world, boasting close to 4 billion monthly active users worldwide. The firm's "Family of Apps," its core business, consists of Facebook, Instagram, Messenger, and WhatsApp. End users can leverage these applications for a variety of different purposes, from keeping in touch with friends to following celebrities and running digital businesses for free. Meta packages customer data, gleaned from its application ecosystem and sells ads to digital advertisers. While the firm has been investing heavily in its Reality Labs business, it remains a very small part of Meta's overall sales.
Market cap 1.4T
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
Who Moves First
META leads BRK.B by 6 days
META tends to move before BRK.B.
Best correlation after shifting: +0.955 (13 shifts scanned)
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
+0.464
15 periods · Return correlation when both series rose
Both Falling
+0.650
6 periods · Return correlation when both series fell
Diverging
-0.815
14 periods · Return correlation when series moved apart
R-Squared
91.0%
Share of variance in one series explained by the other.
Trend Agreement
56.0%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,107
Deep shared window — 1,107 usable pairs.
Significance
p < 0.001
95% CI: [0.948, 0.959]
Time Series
Rebased to 100
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,107 paired observations survived the daily window.
Raw input
1,107
1,254
Normalized
1,107
1,254
Prepared
1,107
1,254
Aligned
1,107
1,107
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
147
A: 0 / B: 147
Series A
Meta Platforms, Inc. Class A Common Stock
META
Market cap 1.4T
Stock · 1,107 raw → 1,107 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
5
Estimated crossover points between normalized spreads.
Slope
0.3357
Linear regression slope.
Intercept
259.9006
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
META
Meta Platforms, Inc. Class A Common Stock
Highest
+0.979
PCEC96
PCEC96 · 52 observations
Lowest
-0.939
United Parcel Service, Inc. Class B
UPS · 1,107 observations
Saved 3 hours ago · ID: stock-meta-vs-stock-brk-b-daily-20260408-txgtbb