Berkshire Hathaway (Ticker: BRK.B, Currency: USD)
Conclusion: Berkshire’s economic engine is still strengthening, but in a lopsided way: insurance and capital allocation are getting better, while railroad, utilities, and many industrial subsidiaries are mature rather than fast-growing.
Berkshire’s DNA is simple even if the structure looks messy: collect low-cost insurance float, invest it intelligently, and redeploy capital into wholly owned businesses and marketable securities. The core money machine is not any single subsidiary; it is the combination of underwriting discipline + investable float + decentralized operating subsidiaries + elite capital allocation.
This is still a fundamentally attractive model. Insurance customers get claims-paying certainty from one of the strongest balance sheets in the world. Subsidiary managers get autonomy and permanent ownership. Shareholders get exposure to a tax-efficient compounder that can shift capital wherever returns are best. That is mostly win-win, not extractive.
The key question is whether that engine is improving. On balance, yes. Berkshire’s insurers entered 2026 with roughly $333000000000 of U.S. statutory surplus and AA+/A++ ratings, which reinforces its ability to write large, profitable risks others cannot. Higher cash and Treasury balances also make Berkshire more money today than they did in the zero-rate era. That strengthens the float machine.
The weaker spots are real but not thesis-breaking. BNSF is a good business, but not a growth business. Berkshire Hathaway Energy is capital-intensive, regulated, and exposed to wildfire/legal risk. Manufacturing, service, and retail operations are economically sensitive and unlikely to become major engines relative to insurance and investments. So the conglomerate is becoming more dependent on insurance/investment income and less on broad-based operating growth.
If I tracked only a few numbers, they would be: insurance float, underwriting profit/loss ratio, investment income on cash/T-bills, BNSF volume/pricing, BHE allowed returns versus capital deployed, and per-share growth in book-value-like intrinsic earning power. Those tell you whether Berkshire is still compounding or merely getting bigger.