Investigate / BRK/B
Understand BERKSHIRE HATHAWAY INC
Are Berkshire Hathaway’s operating businesses becoming more productive, apart from investment-price and foreign-exchange movements in reported earnings?
Snapshot reviewed 2026-10-02. Source published 2026-08-10. No account needed.
AI-assisted synthesis of selected public filings, checked against the cited excerpts. Not a complete analysis.
This is a research starting point, not a buy/sell recommendation or a current valuation. New developments after these sources are not incorporated automatically.
Your research workspace / BRK/B
Ask better questions. Keep the evidence.
Explore the available sources for BERKSHIRE HATHAWAY INC, then keep what deserves another look.
01 Investor activity
Who reports owning BRK/B?
24 tracked reported owners. Disclosures are delayed and may describe different quarters—not live holdings or stated motives.
02 Business evidence
Reported evidence
What does the company do?
Berkshire Hathaway owns businesses that sell insurance and reinsurance, rail transportation, utility and energy services, manufactured products and retail goods, alongside other services.
Latticework interpretation
What could support the case?
Management reports earnings improvements in industrial manufacturing and services. The hypothesis to investigate is whether operating improvements across subsidiaries can persist, rather than relying on a stronger investment market.
Latticework interpretation
What could break the case?
Reported earnings can swing with investment prices and exchange rates. A large net-income increase is not, by itself, evidence that the operating businesses improved by the same amount.
03 Questions to investigate
Open saved takeaways →Read the full company brief
1. Understand the business
Berkshire Hathaway owns businesses that sell insurance and reinsurance, rail transportation, utility and energy services, manufactured products and retail goods, alongside other services.
Source: Annual filing · business description ↗2. What the reported results show
Latest source: 10-Q, reporting period ended 2026-06-30. Selected reported US-GAAP/USD comparisons. The period and basis of each measure are shown separately; year-to-date cash flow is not a quarterly figure. Missing comparisons are collection gaps, not evidence that a company has no revenue or earnings.
| Measure | Current | Prior year |
|---|---|---|
| Revenue from customer contracts ↗Quarter: 2026-04-01–2026-06-30; prior 2025-04-01–2025-06-30Both values reported in the current filing. Excludes assessed tax; this concept may exclude other company revenue. | $70,115m | $61,406m |
| Net income ↗Quarter: 2026-04-01–2026-06-30; prior 2025-04-01–2025-06-30Both values reported in the current filing. | $25,667m | $12,370m |
| Operating cash flow ↗Six months (year to date): 2026-01-01–2026-06-30; prior 2025-01-01–2025-06-30Both values reported in the current filing. Operating cash flow is not free cash flow or a standalone solvency assessment; inspect the full statement. | $21,653m | $20,988m |
Comparison caveat: Investment gains and losses can create substantial volatility in reported net income. Read operating subsidiaries separately. The customer-contract revenue row is a selected accounting concept, not Berkshire’s total revenue.
10-Q · latest checked financial statements and discussion ↗3. The investment debate
Latticework interpretation of the reported results—not the stated motives of any investor.
What could support the case
Management reports earnings improvements in industrial manufacturing and services. The hypothesis to investigate is whether operating improvements across subsidiaries can persist, rather than relying on a stronger investment market.
Supporting filing ↗The strongest caution
Reported earnings can swing with investment prices and exchange rates. A large net-income increase is not, by itself, evidence that the operating businesses improved by the same amount.
Caution evidence ↗An interesting business is not necessarily an attractive investment at today's price. Price, dilution, financing terms and a valuation range still need investigation.
Inspect the evidence behind both sides ↗4. Three questions worth investigating
Use these to guide your research, not as conclusions that have already been proved.
Which operating subsidiaries are improving, and why?
Starting evidence: Manufacturing and services contributed to earnings growth. The underlying causes and differences between subsidiaries matter more than a single consolidated growth figure.
Investigate next: Compare insurance, rail, energy, manufacturing and services results in the segment discussion. Separate demand, operating efficiency and tax effects.
Read the supporting filing ↗How resilient is insurance underwriting through catastrophe losses?
Starting evidence: Berkshire warns that the timing and magnitude of catastrophe losses can make underwriting earnings volatile. A quiet period does not establish normalized profitability.
Investigate next: Inspect catastrophe losses, reserve-estimate changes and underwriting results across multiple periods and insurance businesses. Keep investment income separate from underwriting.
Read the supporting filing ↗How much of the net-income change reflects market and currency moves?
Starting evidence: The filing explains that investment gains include unrealized changes in equity prices and exchange rates. Those changes can obscure recurring business performance.
Investigate next: Reconcile reported net income with the earnings disaggregation, investment notes and currency effects. Distinguish subsidiary earnings from investment and impairment movements.
Read the supporting filing ↗5. Decide what to do next
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