Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Tradeweb Markets Inc. Class A Common Stock
BRK.B vs TW
+0.871
Very 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
Tradeweb Markets Inc. Class A Common Stock
↗TW
Founded in 1998 and headquartered in New York City, Tradeweb Markets is a leading fixed-income trading platform. While it does offer electronic processing for some voice-negotiated trades, the company focuses primarily on providing electronic trading networks that connect broker/dealers, institutional clients, and retail customers. While the company offers trading in a wide variety of products, the bulk of its business is in US and European government debt, mortgage-backed securities, interest-rate swaps, and US and international corporate bonds. The firm also sells fixed-income trading and price data, primarily through a deal with Refinitiv's Eikon service.
Market cap 26.3B · 1,569 employees
Time Series
Relative Performance
Who Moves First
in sync
BRK.B and TW tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.871 (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
-0.070
16 periods · Return correlation when both series rose
Both Falling
+0.831
7 periods · Return correlation when both series fell
Diverging
-0.559
12 periods · Return correlation when series moved apart
R-Squared
75.8%
Share of variance in one series explained by the other.
Trend Agreement
59.9%
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: [0.857, 0.883]
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
Tradeweb Markets Inc. Class A Common Stock
TW
Market cap 26.3B · 1,569 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
0.2501
Linear regression slope.
Intercept
1.8706
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
TW
Tradeweb Markets Inc. Class A Common Stock
Highest
+0.892
Costco Wholesale Corp
COST · 1,254 data points
Lowest
+0.001
Johnson & Johnson
JNJ · 1,254 data points
Saved 6 hours ago · ID: stock-brk-b-vs-stock-tw-daily