Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Annaly Capital Management. Inc.
BRK.B vs NLY
-0.529
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
Annaly Capital Management. Inc.
↗NLY
Annaly Capital Management Inc is an American mortgage real estate investment trust. Its business objective is to generate net income for distribution to its stockholders and optimize its returns through prudent management of its diversified investment strategies. The company's reportable operating segments are: the Agency segment, which invests in Agency mortgage-backed securities collateralized by residential mortgages; the Residential Credit segment, which invests in non-Agency residential whole loans and securitized products within the residential and commercial markets; the Mortgage Servicing Rights segment; and Corporate & Other. Maximum revenue for the company is generated from its Agency segment.
Market cap 15.4B · 212 employees
Time Series
Relative Performance
Who Moves First
NLY leads BRK.B by 6 days
NLY tends to move before BRK.B.
After testing 13 timing shifts, the strongest relationship was -0.536 (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
+0.131
13 periods · Return correlation when both series rose
Both Falling
+0.107
9 periods · Return correlation when both series fell
Diverging
-0.381
13 periods · Return correlation when series moved apart
R-Squared
28.0%
Share of variance in one series explained by the other.
Trend Agreement
66.1%
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: [-0.568, -0.488]
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
Annaly Capital Management. Inc.
NLY
Market cap 15.4B · 212 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
-0.0355
Linear regression slope.
Intercept
36.7586
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
NLY
Annaly Capital Management. Inc.
Highest
+0.155
Johnson & Johnson
JNJ · 1,254 data points
Lowest
-0.808
Exxon Mobil Corporation
XOM · 1,254 data points
Saved 7 hours ago · ID: stock-brk-b-vs-stock-nly-daily