Berkshire Hathaway Concentrates 31% of Equity Portfolio in Apple and Alphabet
Resolved · corporate · Occurred · Assessed · 1 sources
This assessment is dated 2026-09-17. Check what remains unresolved below before relying on it.
Does this insider transaction strengthen the investment case?
Concentrated capital allocation by Berkshire Hathaway into AAPL and GOOG supports baseline equity institutional demand and liquidity.
| Question | What the evidence establishes |
|---|---|
| Did the insider change their personal exposure? | Reported factBerkshire Hathaway has concentrated approximately 31% of its stock portfolio in two technology companies under CEO Greg Abel. |
| On what terms? | Reported factAlphabet represents nearly 10% of Berkshire Hathaway's equity portfolio. |
| Is this unusual buying or selling activity? | UnknownPrior insider transactions for this company are not in the public record here. |
| Does it establish improving business performance? | UnknownNot by itself. A transaction reflects one person's decision; operating results are needed to test it. |
| Does the valuation support acting? | Interpretation3 stored valuation assumptions for BRK.B; the latest is dated 2026-08-11. |
| What would change the assessment? | UnknownBerkshire Hathaway 13F Filing — Quarterly SEC disclosures confirming position sizing in AAPL and GOOG. |
What would this event cost your holdings?
Apply your own hypothetical returns to current holding values. The calculator does not infer security effects from this event.
Test this event against my holdingsReported facts
- · Berkshire Hathaway has concentrated approximately 31% of its stock portfolio in two technology companies under CEO Greg Abel.
- · Alphabet represents nearly 10% of Berkshire Hathaway's equity portfolio.
- · Apple accounts for just over 20% of Berkshire Hathaway's equity portfolio.
- · Alphabet generates $53 billion in free cash flow.
Public research record
Research framework · page evidenceCompleted event assessment
holding company valuation beta to mega-cap tech performance
| Type | Claim | Scope |
|---|---|---|
| Assumption | Berkshire Hathaway has concentrated approximately 31% of its stock portfolio in two technology companies under CEO Greg Abel. | 2026-09-17 |
| Interpretation | holding company valuation beta to mega-cap tech performance | BRK.B |
Countercase, invalidators, and sources
High free cash flow generation from AAPL and GOOG reinforces Berkshire book value growth.
- · Berkshire Hathaway 13F Filing — Quarterly SEC disclosures confirming position sizing in AAPL and GOOG.
- 31% of Berkshire Hathaway's Portfolio Is Riding on These 2 AI Stocks Under Greg Abel · 2026-09-16
What remains unresolved
- Base path
- Berkshire maintains current equity weighting, tracking broader large-cap technology multiples.
- Adverse path
- Multiple compression in large-cap tech drives mark-to-market declines across Berkshire's equity portfolio.
- Supportive path
- High free cash flow generation from AAPL and GOOG reinforces Berkshire book value growth.
- · Berkshire Hathaway 13F Filing — Quarterly SEC disclosures confirming position sizing in AAPL and GOOG.next month
Evidence
- 31% of Berkshire Hathaway's Portfolio Is Riding on These 2 AI Stocks Under Greg Abel2026-09-16
“Berkshire Hathaway has concentrated approximately 31% of its stock portfolio in two AI-focused companies under CEO Greg Abel's leadership: Alphabet (nearly 10% of portfolio) and Apple (just over 20%).”
Supports: Berkshire Hathaway holds 31% of portfolio in AAPL and GOOG under Greg Abel.