Price versus value
- Price
- $509.77
- Fair value
- $325.94
- Potential value
- $383.68
- As of
- 2026-09-18
Main upside reason
Prolonged commercial property and casualty pricing hardening combined with countercyclical deployment of $52.57B in cash into large, cash-generative corporate acquisitions during a broader market downturn, accelerating per-share intrinsic compounding toward Potential value of $383.68.
Main risk
Simultaneous monetary easing lowering short-term rates below 3.50% from the 4.94% risk-free rate and major catastrophe underwriting losses across property and casualty reinsurance subsidiaries.
We rate Berkshire Hathaway Inc. Class B as a Sell. At its report-date price of $509.77 as of September 18, 2026, the stock trades at a 56.4% premium to our Fair value of $325.94, leaving capital exposed to valuation contraction.4
The house rating is Sell. For an ordinary investor, this means capital should not be allocated to new purchases at current market levels, and existing shareholders should consider trimming or exiting their positions to protect accumulated gains.
On the report date of September 18, 2026, the stock traded at $509.77. This price sits 56.4% above our Fair value of $325.94 and 32.9% above our Potential value of $383.68, indicating that the market has priced in operational compounding far beyond what normalized earning power supports.