A key tenet of US equity markets is under threat

America's financial dominance, historically underpinned by the US dollar and its ability to attract global investment, is being questioned. While a complete withdrawal from US assets is unlikely, a rebalancing of global capital towards more attractive alternatives in Europe, Japan, and emerging markets could significantly impact the US economy and its financial markets. This potential shift necessitates a reassessment of traditional investment strategies.

The health of the US equity market, which drives consumer wealth and AI investments, is closely tied to the stability of the Treasury market. Rising government borrowing costs directly affect corporate financing for major tech companies and increase the discount rate applied to future earnings, creating a systemic risk for the broader economy. The US national debt, now exceeding $34 trillion, exacerbates this vulnerability, as weaker global demand for Treasury bonds could lead to higher borrowing costs, impacting everything from federal spending to mortgage rates and corporate debt.

Rising Treasury yields pressure high-valuation growth stocks by increasing the discount rate applied to their future cash flows, making them less appealing. Many major tech companies, such as Alphabet and Oracle, are increasingly adopting capital-intensive business models, heavily investing in data centers, chips, and AI infrastructure, much of which is financed through corporate debt. Since Treasury yields serve as a benchmark for corporate borrowing costs, there's a stronger link between the stock market's largest companies and Treasury market volatility. This creates a feedback loop where higher yields can diminish the present value of future earnings and increase the cost of capital for these companies, ultimately dampening the vital wealth effect that fuels consumer spending. Policymakers face an urgent need to address the national debt, as continued fiscal expansion threatens not only the government's borrowing capacity but also broader economic stability by raising the cost of capital across all sectors.