Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Elevance Health, Inc.
BRK.B vs ELV
-0.607
Moderate inverse
When one moves up, the other tends to move down.
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
Elevance Health, Inc.
↗ELV
Elevance Health remains one of the leading health insurers in the US, providing medical benefits to 45 million medical members at the end of 2025. The company offers employer, individual, and government-sponsored coverage plans. Elevance differs from its peers in its unique position as the largest single provider of Blue Cross Blue Shield branded coverage, operating as the licensee for the Blue Cross Blue Shield Association in 14 states. Through acquisitions, such as the Amerigroup deal in 2012 and MMM in 2021, Elevance's reach expands beyond those states in government-sponsored programs, such as Medicaid and Medicare Advantage plans, too. It is also an emerging player in pharmacy benefit management and other healthcare services.
Market cap 66.5B · 97,100 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads ELV by 6 days
BRK.B tends to move before ELV.
After testing 13 timing shifts, the strongest relationship was -0.618 (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
+0.052
14 periods · Return correlation when both series rose
Both Falling
-0.677
8 periods · Return correlation when both series fell
Diverging
-0.510
13 periods · Return correlation when series moved apart
R-Squared
36.8%
Share of variance in one series explained by the other.
Trend Agreement
61.3%
How often both series moved in the same direction period-to-period.
Overlap Quality
947
Deep shared window — 947 usable pairs.
Significance
p < 0.001
95% CI: [-0.646, -0.565]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
947 paired data points survived the daily window.
Raw input
1,254
947
Normalized
1,254
947
Prepared
1,254
947
Aligned
947
947
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
307
A: 307 / B: 0
Series A
BERKSHIRE HATHAWAY Class B
BRK.B
Market cap 1T
Stock · 1,254 raw → 1,254 prepared
Series B
Elevance Health, Inc.
ELV
Market cap 66.5B · 97,100 employees
Stock · 947 raw → 947 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
-0.5547
Linear regression slope.
Intercept
664.8126
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-brk-b-vs-stock-elv-daily