Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Palantir Technologies Inc. Class A Common Stock
BRK.B vs PLTR
+0.805
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
Palantir Technologies Inc. Class A Common Stock
↗PLTR
Palantir is an artificial intelligence, analytics, and automated decision-making company that leverages data to drive efficiency across its clients' organizations. The firm serves commercial and government clients via its Foundry and Gotham platforms, respectively. Palantir works only with entities in Western-allied nations and reserves the right not to work with anyone that is antithetical to Western values. The company was founded in 2003 and went public in 2020.
Market cap 353.8B · 4,429 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads PLTR by 6 days
BRK.B tends to move before PLTR.
After testing 13 timing shifts, the strongest relationship was +0.811 (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
+0.098
12 periods · Return correlation when both series rose
Both Falling
+0.387
5 periods · Return correlation when both series fell
Diverging
-0.432
18 periods · Return correlation when series moved apart
R-Squared
64.7%
Share of variance in one series explained by the other.
Trend Agreement
55.4%
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: [0.784, 0.823]
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
Palantir Technologies Inc. Class A Common Stock
PLTR
Market cap 353.8B · 4,429 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
26
Estimated crossover points between normalized spreads.
Slope
0.5439
Linear regression slope.
Intercept
-156.1501
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
BRK.B
BERKSHIRE HATHAWAY Class B
Highest
+0.968
Republic Services Inc.
RSG · 1,254 data points
Lowest
-0.918
United Parcel Service, Inc. Class B
UPS · 1,254 data points
PLTR
Palantir Technologies Inc. Class A Common Stock
Highest
+0.948
Broadcom Inc. Common Stock
AVGO · 1,254 data points
Lowest
+0.451
Exxon Mobil Corporation
XOM · 1,254 data points
Saved 6 hours ago · ID: stock-brk-b-vs-stock-pltr-daily