BRK-B compared with JRVR: revenue, margins and what each company keeps, and the suppliers and customers both name

BRK-BBerkshire Hathaway Inc

Mkt capRevenueRevenue

JRVRJames River Group Holdings, Inc.

Mkt capRevenueRevenue

Compare

BRK-BBerkshire Hathaway Inc

JRVRJames River Group Holdings, Inc.

Price

Mkt cap

Revenue

Revenue flow Supply chain Price Co-movers Event sensitivity Earnings history

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Supply-chain overlap

News Findings Companies A–Z Pricing Methodology Sources Corrections About Terms

Not investment advice. Not a broker-dealer. Indices shown as ETF proxies. Supply-chain data CC BY 4.0; market data not redistributable.

Listed on One’s Vibe · live-checked · Oct ’26

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Supply-chain overlap

direct ties · both sidesSources ›

direct ties · both sides

Only BRK-B 0

None

Shared 0

No disclosed counterparties: BRK-B.

Only JRVR 13

—Aleka Insuranceunlistedsupplier

—State National Insuranceunlistedsupplier

—Berkley Insuranceunlistedsupplier

—Cavello Bay Reinsuranceunlistedsupplier

9 more · JRVR chain ›

Role chip = supplier or customer—= no ticker (unlisted)Source: SEC EDGAR

BRK-BBerkshire Hathaway Inc

572.30▼−1.17%· post 569.60· delayed

Mkt cap$1.2TRevenue$102BQ2 FY26Revenue$371BFY25

JRVRJames River Group Holdings, Inc.

3.99▲+0.97%· post 3.99· delayed

After hoursNov 5 '26delayed

Mkt cap$182.6MRevenue$156MQ2 FY26Revenue$664MFY25

Compare

After hoursNov 5 '26delayed

BRK-BBerkshire Hathaway Inc

JRVRJames River Group Holdings, Inc.

572.30▼−1.17%post 569.60delayed

Price

3.99▲+0.97%post 3.99delayed

$1.2T

Mkt cap

$182.6M

Q2 FY26$102B

Revenue

$156MQ2 FY26

FY25$371B

Revenue

$664MFY25

BRK-B572.30▼−1.17%vsJRVR3.99▲+0.97%After hoursNov 5 '26delayed