Warren Buffett runs Berkshire Hathaway Inc, a concentrated book of 29 stocks worth $263.1B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Delta Air Lines Inc and trimmed Bank Of America Corp. Their largest long position is Apple Inc at 22% of the equity book. Cloning the disclosed picks since 2013 would be +215% (+9.4%/yr). That is a simulation of the disclosed long book, not audited returns.
The reported book (valued from quarter-end) returned +243.3%, a 28.0-point gap that is the cost of the ~45-day 13F disclosure lag a real follower can't avoid.
Growth of $10,000 cloning Warren Buffett, Berkshire Hathaway Inc's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~45 days for the latest filing, with no look-ahead), total-return basis (dividends reinvested), derived from end-of-day prices. “Their reported book” values the same picks from quarter-end, before they were public. S&P 500 is SPY total return over the same window. Excludes shorts, cash, options and non-13F holdings. Not investment advice.
Top-heavy: concentrated book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
100% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Other tracked managers holding the same core names as Warren Buffett
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| BlackRock, Inc. | 45 / 29 | $930.4B |
| State Street Corp | 45 / 29 | $594.1B |
| FMR LLC | 45 / 29 | $322.1B |
| Morgan Stanley | 45 / 29 | $218.0B |
| JPMorgan Chase & Co | 45 / 29 | $200.1B |
| Northern Trust Corp | 45 / 29 | $126.3B |
| Bank Of America Corp | 45 / 29 | $109.1B |
| Goldman Sachs Group Inc | 45 / 29 | $94.9B |
Ranked by how many of Warren Buffett's top 29 disclosed names each fund also holds: a cross-fund conviction signal from the latest 13F of every tracked manager.
29 companies · Q1 2026
| # | Stock | % of book | Value | Shares | Last move |
|---|---|---|---|---|---|
| 1 | Apple IncAAPL | 22.0% | $57.8B | 227.9M | —Held |
| 2 | American Express CoAXP | 17.4% | $45.9B | 151.6M | —Held |
| 3 | Coca-Cola CoKO | 11.6% | $30.4B | 400.0M | —Held |
| 4 | Bank Of America CorpBAC | 9.5% | $25.0B | 513.6M | ▼−0.7% Reduced · −3.7M sh |
| 5 | Chevron CorpCVX | 6.6% | $17.5B | 84.4M | ▼−35% Reduced · −45.8M sh |
| 6 | Occidental Petroleum CorpOXY | 6.5% | $17.2B | 264.9M | —Held |
| 7 | Alphabet Inc-CL AGOOGL | 5.9% | $15.6B | 54.2M | ▲+204% Added · +36.4M sh |
| 8 | Chubb LtdCB | 4.2% | $11.2B | 34.2M | —Held |
| 9 | Moody's CorpMCO | 4.1% | $10.8B | 24.7M | —Held |
| 10 | Kraft Heinz CoKHC | 2.8% | $7.3B | 325.6M | —Held |
| 11 | Davita IncDVA | 1.8% | $4.6B | 30.1M | ▼−5.2% Reduced · −1.7M sh |
| 12 | Kroger CoKR | 1.4% | $3.6B | 50.0M | —Held |
| 13 | Sirius XM Holdings IncSIRI | 1.1% | $2.9B | 124.8M | —Held |
| 14 | Delta Air Lines IncDAL | 1.0% | $2.6B | 39.8M | ▲New +39.8M sh |
| 15 | Verisign IncVRSN | 0.8% | $2.2B | 9.0M | —Held |
| 16 | Capital One Financial CorpCOF | 0.5% | $1.3B | 7.2M | —Held |
| 17 | New York Times Co-ANYT | 0.5% | $1.3B | 15.1M | ▲+199% Added · +10.1M sh |
| 18 | Ally Financial IncALLY | 0.4% | $1.1B | 29.0M | —Held |
| 19 | Alphabet Inc-CL CGOOG | 0.4% | $1.0B | 3.6M | ▲New +3.6M sh |
| 20 | Liberty Live Holdings-CLLYVK | 0.4% | $996.4M | 10.6M | ▼−3.0% Reduced · −331K sh |
| 21 | Lennar Corp-ALEN | 0.3% | $877.1M | 10.1M | ▲+43% Added · +3.0M sh |
| 22 | Nucor CorpNUE | 0.3% | $660.7M | 3.9M | ▼−39% Reduced · −2.5M sh |
| 23 | Liberty Live Holdings-ALLYVA | 0.2% | $457.0M | 5.0M | —Held |
| 24 | Louisiana-Pacific CorpLPX | 0.2% | $412.1M | 5.7M | —Held |
| 25 | Constellation Brands Inc-ASTZ | 0.0% | $94.9M | 633K | ▼−95% Reduced · −12.4M sh |
1 vehicle
Aggregated from SEC Form 13F filings (institutional long equity positions, reported quarterly, up to 45 days after quarter-end). Holdings are public domain, sourced to SEC EDGAR. The book totals, weighting, concentration and sectors are long equity only; disclosed put/call options are listed separately and excluded from those figures. The performance line is a simulation of the disclosed long book, not an audited fund return. Every panel is one call to the Arkolith API & MCP server.