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Direct answer
BRK.B trades against a final fair-value range of $374.65-$742.60, with the midpoint set by the accepted valuation synthesis rather than earlier draft model outputs. Fair value range: low $375, high $743, with mid-point at $550.
Stock analysis

BRK.B Berkshire Hathaway Inc. Class B fair value $550–$743

BRK.B
By StockMarketAgent.AI team· supervised by
分析日: 2026-05-08次回更新: 2026-08-08Methodology v2.4Archetype: FinancialNYSE · Financials
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株価
$475.08
▲ +74.67 (+15.72%)
公正価値
$550
$550–$743
評価
買い
confidence 65/100
上昇余地
+15.7%
upside to fair value
安全余裕率
$467.29
buy below · 15%
時価総額
$1.02T
P/E fwd 22.4
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§1 エグゼクティブサマリー

  • Composite fair value $550 with high case $743.
  • Implied upside of 15.7% to fair value.
  • Moat 9/10 · confidence 65/100 · Financial.
  • Trades at a measured discount to fair value with adequate margin of safety.
Fair value
$550
Margin of safety
+13.6%
Confidence
65/100
Moat
9/10

Educational analysis only — not financial advice. Always do your own due diligence.

$475.08Price
FV $549.75
High $742.6

BRK.B trades against a final fair-value range of $374.65-$742.60, with the midpoint set by the accepted valuation synthesis rather than earlier draft model outputs.

  • 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.

§2 ベアケース

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.

このテーゼが崩れる経路

Succession-driven capital allocation deterioration

25-35% over 5 years· Medium

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
監視すべき早期警戒シグナル
指標現在トリガーしきい値
Combined ratio sustained above 100% for two consecutive quartersMonitorDeterioration versus the report thesis
Book value per share growth decelerating below 5% annualizedMonitorDeterioration versus the report thesis
Cash deployment into acquisitions above 2x trailing book value of targetMonitorDeterioration versus the report thesis
BNSF operating ratio exceeding 70% (currently ~60%)MonitorDeterioration versus the report thesis
Greg Abel increasing centralization or departing from decentralized operating philosophyMonitorDeterioration versus the report thesis

§3 財務履歴

損益計算書 — 直近6期
項目T−0T−1T−2T−3T−4CAGR
期間2021-12-312022-12-312023-12-312024-12-312025-12-31Trend
売上高$276.19B$302.02B$364.48B$371.43B$371.44B+7.7%
売上総利益
営業利益
純利益$89.94B$-22.76B$96.22B$89.00B$66.97B-7.1%
EPS (希薄化後)
EBITDA
研究開発
販管費

品質スコア

Piotroski F-スコア
2 / 9
0–9 品質コンポジット
OCF / 純利益
0.69×
>1 は利益の質が高いことを示す
会計品質ゲート
Fail
セクター調整後ゲート
ROIC
投下資本利益率
セクション 3

Numbers analysis

キャッシュフロー

Cash-flow quality is reflected in the OCF / net income, accounting-quality, and ROIC rows above.

資本配分

Capital allocation should be evaluated against reinvestment needs, balance-sheet strength, and shareholder returns.

個人サブスクライバー — §4以降11セクション追加

完全な分析を読む — 11セクション追加。

Competitive moat, industry cycle, peer comparison, intrinsic valuation, sensitivity, scenarios, earnings decision tree, position management, investor perspectives, scorecard, and final recommendation.

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FAQ

BRK.B — frequently asked questions

  1. Based on our latest independent analysis, BRK.B looks meaningfully undervalued. The current price is $475 versus a composite fair-value midpoint of $550 (range $375–$743), which implies roughly 15.7% upside to the midpoint.