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WRB compared with BRK-B: revenue, margins and what each company keeps, and the suppliers and customers both name
WRB
W. R. Berkley Corp
Change
Mkt cap
Revenue
Revenue
BRK-B
Berkshire Hathaway Inc
Change
Mkt cap
Revenue
Revenue
vs
Compare
WRB
W. R. Berkley Corp
vs
BRK-B
Berkshire Hathaway Inc
Price
Mkt cap
Revenue
Revenue
Change
Change
Revenue flow
Supply chain
Price
Co-movers
Event sensitivity
Earnings history
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Revenue flow
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WRB
W. R. Berkley Corp
Change
75.10
▼
−0.08%
· post 75.10
Mkt cap
$27.9B
Revenue
$3.7B
Q3 FY26
Revenue
$14.7B
FY25
BRK-B
Berkshire Hathaway Inc
Change
557.24
▲
+0.20%
· post 556.74
Closed
Nov 3 '26
Mkt cap
$1.2T
Revenue
$102B
Q2 FY26
Revenue
$371B
FY25
vs
Compare
Closed
Nov 3 '26
WRB
W. R. Berkley Corp
vs
BRK-B
Berkshire Hathaway Inc
75.10
▼
−0.08%
post 75.10
Price
557.24
▲
+0.20%
post 556.74
$27.9B
Mkt cap
$1.2T
Q3 FY26
$3.7B
Revenue
$102B
Q2 FY26
FY25
$14.7B
Revenue
$371B
FY25
Change
Change
WRB
75.10
▼
−0.08%
vs
BRK-B
557.24
▲
+0.20%
Closed
Nov 3 '26
Revenue flow
Supply chain
Price
Co-movers
Event sensitivity
Earnings history
Price
Supply-chain overlap
Revenue flow
WRB: latest quarter not drawable.
Method
›
Price
rebased to 0%
1D
1W
1M
3M
YTD
1Y
5Y
1D
1W
1M
3M
YTD
1Y
5Y
WRB, solid
BRK-B, dashed
Supply-chain overlap
direct ties · both sides
Sources
›
direct ties · both sides
Only WRB
1
RYAN
Ryan Specialty
customer
Shared
0
No disclosed counterparties: BRK-B.
Only BRK-B
0
None
Role chip = supplier or customer
Source: SEC EDGAR