Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Strategy Inc Common Stock Class A
BRK.B vs MSTR
+0.828
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
Strategy Inc Common Stock Class A
↗MSTR
Strategy Inc is a bitcoin treasury company and a provider of business intelligence services. It is designed to provide investors varying degrees of economic exposure to Bitcoin by offering a range of securities, including equity and fixed-income instruments. The company also provides industry AI-powered enterprise analytics software. It has one reportable operating segment: the Software Business, which is engaged in the design, development, marketing, and sales of the company's enterprise analytics software platform through cloud subscriptions and licensing arrangements and related services (i.e., product support, consulting, and education). Geographically, the company operates in EMEA, U.S. and Other Regions, of which maximum revenue is derived from U.S..
Market cap 44.1B · 1,539 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads MSTR by 6 days
BRK.B tends to move before MSTR.
After testing 13 timing shifts, the strongest relationship was +0.830 (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
-0.063
9 periods · Return correlation when both series rose
Both Falling
N/A
3 periods · Return correlation when both series fell
Diverging
-0.474
23 periods · Return correlation when series moved apart
R-Squared
68.5%
Share of variance in one series explained by the other.
Trend Agreement
56.5%
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: [0.809, 0.844]
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
Strategy Inc Common Stock Class A
MSTR
Market cap 44.1B · 1,539 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
33
Estimated crossover points between normalized spreads.
Slope
1.2042
Linear regression slope.
Intercept
-328.9663
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
MSTR
Strategy Inc Common Stock Class A
Highest
+0.903
NetFlix Inc
NFLX · 1,254 data points
Lowest
-0.071
Johnson & Johnson
JNJ · 1,254 data points
Saved 7 hours ago · ID: stock-brk-b-vs-stock-mstr-daily