Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Newmont Corporation
BRK.B vs NEM
+0.301
Light 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
Newmont Corporation
↗NEM
Newmont is the world's largest gold miner. It bought Goldcorp in 2019, combined its Nevada mines in a joint venture with competitor Barrick later that year, and also purchased competitor Newcrest in November 2023. Its portfolio includes 11 mines and interests in two joint ventures in the Americas, Africa, Australia, and Papua New Guinea. The company is expected to sell roughly 5.3 million ounces of gold in 2026 from its continuing mines after selling six higher-cost, smaller mines following the Newcrest acquisition. Newmont also produces material amounts of copper, silver, zinc, and lead as byproducts. It had about two decades of gold reserves, along with significant byproduct reserves at the end of December 2025.
Market cap 121.8B · 17,500 employees
Time Series
Relative Performance
Who Moves First
BRK.B leads NEM by 6 days
BRK.B tends to move before NEM.
After testing 13 timing shifts, the strongest relationship was +0.314 (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
+0.006
16 periods · Return correlation when both series rose
Both Falling
+0.128
9 periods · Return correlation when both series fell
Diverging
-0.840
10 periods · Return correlation when series moved apart
R-Squared
9.1%
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
1,254
Deep shared window — 1,254 usable pairs.
Significance
p < 0.001
95% CI: [0.250, 0.351]
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
Newmont Corporation
NEM
Market cap 121.8B · 17,500 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
11
Estimated crossover points between normalized spreads.
Slope
0.0713
Linear regression slope.
Intercept
29.5515
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-brk-b-vs-stock-nem-daily