Berkshire Hathaway (BRK.A)
Holding company built by Warren Buffett: insurance (GEICO), railways (BNSF), energy, and a large public-equity portfolio.
- Legal name
- Berkshire Hathaway Inc.
- Ticker
- BRK.A
- Exchange
- New York Stock Exchange · MIC XNYS
- Country
- United States
- Sector
- Financials
- Industry
- Diversified Holdings
- Market cap ≈
- $1.0tn (approx., seed-0.6 · 2026-08-29)
- Reporting currency
- USD
- Founded
- 1839
- Website
- www.berkshirehathaway.com
- LEI
- 5493000C01ZX7D35SD85 (GLEIF)
- ISIN
- US0846701086 (check digit validated)
- FIGI
- BBG001S902J2 (share class, OpenFIGI)
Graph connections view in graph →
lists_onNew York Stock Exchange
domiciled_inUnited States
member_ofS&P 500
held_by (top holdings)SPDR S&P 500 ETF Trust
Vanguard S&P 500 ETF
iShares Core S&P 500 ETF
Vanguard Total Stock Market ETF
Sector peers — Financials
JPMorgan Chase · Visa · Mastercard · BlackRock · Goldman Sachs · Coinbase
Compare: BRK.A vs JPM · BRK.A vs V · BRK.A vs MA
Identifier crosswalk
| Standard | Value | What it answers |
|---|---|---|
| Ticker | BRK.A | Venue-local shorthand — ambiguous across markets |
| MIC | XNYS | ISO 10383 — the venue |
| ISIN | US0846701086 | ISO 6166 — the security |
| LEI | 5493000C01ZX7D35SD85 | ISO 17442 — the legal entity |
| FIGI | BBG001S902J2 | OpenFIGI — instrument, share class |
| CUSIP | 084670108 | Derived from the US/CA ISIN, check digit verified — licensed identifier, not republished as data |
One entity, six naming systems. Each linked code opens its reverse-lookup page; the validator checks any code's check digit. CUSIP is shown because it is embedded in US/CA ISINs — we verify it, we do not redistribute CUSIP data.
Approximate reference values from public sources · seed-0.6 · 2026-08-29 · not real-time. See data & methodology.