US debt crosses $40 trillion as the 30-year Treasury yield stays above 5%, spotlighting why Berkshire favors operating businesses over bonds

The latest jump in US government borrowing pushed the national debt beyond $40 trillion, according to a market commentary published by 247wallst and syndicated through Yahoo Finance on August 20. The same piece said the 30-year Treasury yield remained above 5%, keeping long-term borrowing costs elevated and adding urgency to the question of how markets absorb the government’s financing needs.

The article further argued that attempts to support the bond market can be fragile, describing a fast collapse of an intervention within about a day. It used that backdrop to frame a contrast between owning interest-rate-sensitive assets such as bonds and owning companies whose cash flows are driven by operations rather than by a fixed coupon.

Against that backdrop, the piece pointed to Berkshire Hathaway’s portfolio approach. Berkshire is best known for holding large stakes in public companies and for owning insurance and other operating businesses outright. In this framing, Berkshire’s “businesses not bonds” stance is presented as a structural hedge against a world where long-term yields can stay high and where bond market conditions can turn quickly.

While the commentary linked Berkshire to the broader interest-rate narrative, it did not lay out a detailed breakdown of Berkshire’s current fixed-income holdings or trading activity. It also did not provide new Berkshire-specific transactions in the way an investor release would, instead relying on the general investment thesis behind Berkshire’s capital allocation and balance-sheet philosophy.

For Berkshire, the core idea is that operating companies can generate cash independent of market yields, and insurers in particular can benefit from the spread between what they earn on invested assets and what they must pay out in claims and expenses. In practice, that does not eliminate interest-rate risk, but it changes how the firm is exposed to it compared with a portfolio concentrated in duration-heavy, fixed-coupon assets.

The article’s implicit takeaway for the market is that higher yields shift the payoff profile of traditional bond investing, while ownership of operating businesses can concentrate returns in revenue growth, margins, underwriting performance, and capital reinvestment decisions. In that sense, Berkshire’s strategy is portrayed less as a bet on any single rate path and more as a preference for cash flows that can be influenced by management and business conditions.

Still, several important details were not disclosed in the syndicated commentary. It did not specify Berkshire’s actual current duration exposure, the size or composition of any fixed-income sleeve, or whether Berkshire increased or reduced particular bond or equity positions during the period in question. Readers looking for precise implications would need to consult Berkshire’s most recent filings and shareholder communications for the actual portfolio mix.

What to watch next is whether long-term Treasury yields remain pinned above 5% as debt issuance continues, and whether corporate and equity markets begin to reprice in response. For Berkshire investors, the key question is how management continues to balance buy-and-hold equity exposure, operating cash generation, and any reinvestment decisions made under a higher-yield regime.