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Quote this valuation with its source: Fair value, Potential value and the price at analysis.
FAQ
BRK.B — frequently asked questions
Is Berkshire Hathaway Inc. Class B overvalued?
In our latest published analysis dated 2026-05-08, BRK.B looks meaningfully undervalued. The price recorded at analysis is USD 475 versus our fair value of USD 550; the high endpoint is presented separately as potential value of USD 743. That implies roughly 15.7% upside to fair value at that date.
Our latest published report, analyzed 2026-05-08, gives BRK.B a fair value of USD 550 and a potential value of USD 743. The conclusion is triangulated across multiple valuation models and weighted by reliability for Berkshire Hathaway Inc. Class B's archetype; it is a dated research output, not a live price.
Should I buy BRK.B now?
Our latest published rating for BRK.B, analyzed 2026-05-08, is Buy. Berkshire Hathaway Inc. Class B looks meaningfully undervalued at the analysis-date price of USD 475 versus fair value of USD 550; potential value is USD 743. This is research for educational purposes, not personalized investment advice.
What are the biggest risks for BRK.B?
The dedicated bear-case section in our report analyzed 2026-05-08 documents Berkshire Hathaway Inc. Class B's material risks, evidence, thresholds, and thesis-invalidation conditions. Scenario-specific explanations remain in that section so the report does not repeat or decontextualize them elsewhere.
What is BRK.B's rating?
Our latest published rating for BRK.B, analyzed 2026-05-08, is Buy, with a published moat assessment of 9/10 (wide). It reflects our fair value of USD 550, the potential value of USD 743, and the price recorded at analysis (USD 475).
Bull: Berkshire deploys its unprecedented cash hoard into a transformative acquisition during a market dislocation, simultaneously benefiting from extended hard-market insurance pricing.
Main risk
Succession-driven capital allocation deterioration: Greg Abel lacks Buffett's investment track record.
Berkshire Hathaway trades at $475.08 (Class B), approximately 1.43x book value, against a compositefair value midpoint of $549.75 — implying 16% upside. The company's $300B+ cash/Treasury position, $170B+ insurance float, and diversified operating businesses create an unmatched financial fortress. The primary risk is the near-certain leadership transition from Warren Buffett (age 95) to Greg Abel within the forecast horizon.
Berkshire Hathaway trades at $475.08 (Class B), approximately 1.43x book value, against a compositefair value midpoint of $549.75 — implying 16% upside. The company's $300B+ cash/Treasury position, $170B+ insurance float, and diversified operating businesses create an unmatched financial fortress. The primary risk is the near-certain leadership transition from Warren Buffett (age 95) to Greg Abel within the forecast horizon.
Zero-cost insurance float (~$170B+) functions
Zero-cost insurance float (~$170B+) functions as permanent, non-callable leverage — no competitor replicates this at scale
BNSF and BHE operate as
BNSF and BHE operate as regulated/quasi-monopoly infrastructure with pricing power indexed to inflation
Cycle upside
Hard insurance market extends through 2027, driving premium growth of 8-12% and combined ratios below 95%. Rising interest rates boost float income. BHE rate cases approved, improving utility ROE toward allowed returns.
House recommendation
Size accordingly.
Company overview
Berkshire Hathaway Inc., together with its subsidiaries, engages in the insurance, freight rail transportation, and utility businesses. The company provides property, casualty, life, accident, and health insurance and reinsurance; operates railroad systems in North America; generates, transmits, stores, and distributes electricity from natural gas, coal, wind, solar, hydroelectric, nuclear, and geothermal sources; operates natural gas distribution and storage facilities, interstate pipelines, liquefied natural gas facilities, and compressor and meter stations; and holds interest in coal mining assets. It manufactures boxed chocolates and other confectionery products; specialty chemicals, metal cutting tools, and components for aerospace and power generation applications; prefabricated and site-built residential homes, flooring products; insulation, roofing, and engineered products; building and engineered components; paints and coatings; and bricks and masonry products, as well as offers manufactured and site-built home construction, and related lending and financial services. In addition, the company provides recreational vehicles, apparel, footwear, toys, jewelry, custom picture framing products, alkaline batteries, logistics services, and professional aviation training and shared aircraft ownership programs; castings, forgings, fasteners/fastener systems, aerostructures, and precision components; and cobalt, nickel, and titanium alloys. Further, it distributes televisions and information, and grocery and non-food consumer products; franchises and services quick service restaurants; and distributes electronic components. Additionally, it retails automobiles; furniture, bedding, and accessories; household appliances, electronics, and floor coverings; watches, home decor and repair services; sells kitchenware; and motorcycle clothing and equipment. The company was incorporated in 1998 and is headquartered in Omaha, Nebraska.
Under a combined stress scenario — recession reducing underwriting profits by 40%, equity portfolio declining 30%, and BNSF volumes falling 15% — operating earnings could compress to ~$25B from ~$40B normalized. At 10x stressed earnings plus $300B cash at par, trough equity value approximates $400/share (0.95x book). The cash fortress prevents permanent impairment but does not prevent a 15-20% drawdown.
Industry capex/revenue at 55% (public industry dataset) is elevated but primarily reflects BHE regulated utility build-out and BNSF maintenance — not speculative capacity. BRK's capex/D&A of 1.55x reflects investment phase, not overbuilding.
Bull cycle
Hard insurance market extends through 2027, driving premium growth of 8-12% and combined ratios below 95%. Rising interest rates boost float income. BHE rate cases approved, improving utility ROE toward allowed returns.
Bear cycle
Insurance cycle softens as capacity re-enters market post-catastrophe repricing. Interest rate cuts compress Treasury yield on $300B+ cash. Railroad volumes decline on manufacturing recession. Conglomerate discount widens as activist pressure mounts on peers.
Positioning
Industry capex/revenue at 55% (public industry dataset) is elevated but primarily reflects BHE regulated utility build-out and BNSF maintenance — not speculative capacity. BRK's capex/D&A of 1.55x reflects investment phase, not overbuilding.
§11 Position management
Risk
Trim at $550+ (midpoint fair value). Exit fully at $740+ (bull scenario) or if book value growth decelerates below 6% for two consecutive years. Hard stop: exit if Greg Abel departs or BRK undertakes an acquisition above 2x target book value.
Attractive at 1.43x book vs 1.5x 5-year average. $300B+ cash at ~5% yield provides a floor. Two-model convergence at ~$490 suggests limited permanent downside risk. The residual income model's justified P/B of 1.46x validates near-current-price as fair entry.
Base view
Buy
Buy with significant caveats. The 16% upside to midpoint fair value ($549.75) clears the valuation hurdle, anchored by two converging models at ~$490. The forward earnings model's 15% growth assumption is inconsistent with internal valuation cross-checks and inflates the composite. Investors should anchor expectations to the $490-550 range and treat the position as a compounding vehicle, not a catalyst-driven trade. Succession risk is the dominant unknown.
Income Investor
Buy
Not suitable — zero dividend yield. Total shareholder return is entirely through book value compounding and share buybacks (~0.9% effective yield).
§14 Final recommendation
Action
Buy
Buy with significant caveats. The 16% upside to midpoint fair value ($549.75) clears the valuation hurdle, anchored by two converging models at ~$490. The forward earnings model's 15% growth assumption is inconsistent with internal valuation cross-checks and inflates the composite. Investors should anchor expectations to the $490-550 range and treat the position as a compounding vehicle, not a catalyst-driven trade. Succession risk is the dominant unknown.
Reassess the thesis against the named valuation, risk, and quarterly checkpoint evidence in this report.
§15Your notes
Capture your own thesis, position size, and follow-up questions. Stays on this device, only you can see it.
Post-Buffett market skepticism combines with wildfire liabilities and a softening insurance cycle. The conglomerate discount widens as investors question whether Abel can replicate Buffett's capital allocation genius. P/B compresses to 1.1x against a modestly growing book value, producing a 20%+ drawdown from current levels.
Greg Abel lacks Buffett's investment track record. A single large misallocation ($50B+ acquisition at inflated multiples) could permanently impair book value growth trajectory and trigger conglomerate discount widening from 1.4x to sub-1.0x P/B.
FV impact
−30% to −40% ($290-$330/share)
Trigger
2026-2030
PacifiCorp wildfire liability crystallization
15-20%· Low
BHE subsidiary PacifiCorp faces multi-billion dollar wildfire claims in Oregon. If total liabilities exceed $15B (vs current reserves), BHE equity could be impaired, requiring Berkshire parent capital injection and reducing consolidated book value.
FV impact
−8% to −12% ($420-$450/share)
Trigger
2026-2028
Forced Apple divestiture or mark-to-market tax event
10-15%· Low
Regulatory or tax-policy changes force liquidation of the ~$70B Apple position, crystallizing $50B+ in embedded capital gains taxes and permanently reducing the equity portfolio's compounding capacity.
FV impact
−10% to −15% ($400-$430/share)
Trigger
2027-2030
Early-warning signals to monitor
The five developments that would weaken our investment case.
Underwriting losses in the primary insurance and reinsurance segments would eliminate underwriting profits, eroding consolidated earnings and diminishing the cost-free float advantage that underpins the conglomerate compounding engine.
Current:18.0% for the period ended 2025-12-31
Alert iffalls below 10.0% across any fiscal year
02
Book Value Growth Deceleration
Subpar capital compounding across operating subsidiaries and investment portfolios would signal diminishing returns on equity, eroding shareholder value creation and triggering persistent multiple compression across the conglomerate.
Current:CAGR of ~12% over 5 years as of 2025-12-31
Alert ifdecelerates below 5.0% annualized over any three-year period
Disciplined capital allocation is central to the compounding model; overpaying for large acquisitions or experiencing cash conversion drag reduces internal liquidity and permanently impairs capital reinvestment efficiency.
Current:0.686 as of the report's 2026-05-08 analysis date
Alert iffalls below 0.500 over any trailing twelve-month period
Operating cost inflation and freight volume declines at core transport and energy subsidiaries reduce consolidated earnings, impairing non-insurance cash generation and weighing on overall operating profitability.
Current:0.0% for the period ended 2025-12-31
Alert ifcontracts below -5.0% over any fiscal year
Departing from the proven decentralized operating model or executing value-destroying mega-acquisitions would introduce administrative bureaucracy, damage corporate culture, and trigger a structural widening of the conglomerate discount.
Current:$66.97B for the period ended 2025-12-31
Alert iffalls below $40.00B across any fiscal year
wide
Sources of advantage
01Zero-cost insurance float (~$170B+) functions as permanent, non-callable leverag — Zero-cost insurance float (~$170B+) functions as permanent, non-callable leverage — no competitor replicates this at scaleWide
02BNSF and BHE operate as regulated/quasi-monopoly infrastructure with pricing pow — BNSF and BHE operate as regulated/quasi-monopoly infrastructure with pricing power indexed to inflationWide
03Decentralized operating model attracts private sellers willing to accept below-a — Decentralized operating model attracts private sellers willing to accept below-auction prices for cultural fitWide
04$300B+ cash/Treasury position provides unmatched counter-cyclical acquisition op — $300B+ cash/Treasury position provides unmatched counter-cyclical acquisition optionalityWide
05Brand trust and Buffett association create a self-reinforcing deal-flow flywheel — Brand trust and Buffett association create a self-reinforcing deal-flow flywheelWide
Berkshire deploys its unprecedented cash hoard into a transformative acquisition during a market dislocation, simultaneously benefiting from extended hard-market insurance pricing. Book value compounds at 14%+, and the market re-rates P/B toward 1.6x as succession concerns fade under Abel's disciplined stewardship.
Warning level: falls below 10.0% across any fiscal year. Underwriting losses in the primary insurance and reinsurance segments would eliminate underwriting profits, eroding consolidated earnings and diminishing the cost-free float advantage that underpins the conglomerate compounding engine.
02
Metric:
Book Value Growth Deceleration
CurrentCAGR of ~12% over 5 years as of 2025-12-31
Why it matters
Warning level: decelerates below 5.0% annualized over any three-year period. Subpar capital compounding across operating subsidiaries and investment portfolios would signal diminishing returns on equity, eroding shareholder value creation and triggering persistent multiple compression across the conglomerate.
Current0.686 as of the report's 2026-05-08 analysis date
Why it matters
Warning level: falls below 0.500 over any trailing twelve-month period. Disciplined capital allocation is central to the compounding model; overpaying for large acquisitions or experiencing cash conversion drag reduces internal liquidity and permanently impairs capital reinvestment efficiency.
Warning level: contracts below -5.0% over any fiscal year. Operating cost inflation and freight volume declines at core transport and energy subsidiaries reduce consolidated earnings, impairing non-insurance cash generation and weighing on overall operating profitability.
Warning level: falls below $40.00B across any fiscal year. Departing from the proven decentralized operating model or executing value-destroying mega-acquisitions would introduce administrative bureaucracy, damage corporate culture, and trigger a structural widening of the conglomerate discount.
Trim at $550+ (midpoint fair value). Exit fully at $740+ (bull scenario) or if book value growth decelerates below 6% for two consecutive years. Hard stop: exit if Greg Abel departs or BRK undertakes an acquisition above 2x target book value.
Bull: Berkshire deploys its unprecedented cash hoard into a transformative acquisition during a market dislocation, simultaneously benefiting from extended hard-market insurance pricing. Book value compounds at 14%+, and the market re-rates P/B toward 1.6x as succession concerns fade under Abel's disciplined stewardship.