US debt is now $37trn – should we be worried?

The US national debt has reached $37 trillion, with the latest budget bill projected to add $3 trillion, fueling significant concerns over its sustainability. This has led to a weakening dollar, down notably against major currencies, and a steepening yield curve, indicating growing investor apprehension. Experts like Ray Dalio warn the US is at an "inflection point," projecting annual debt repayments could soon hit $10 trillion, necessitating severe fiscal adjustments or potential inflationary central bank actions. Despite these warnings and the catastrophic implications of a default, the dollar's "cleanest dirty shirt" status currently ensures its global reserve role due to a lack of viable alternatives, though its long-term stability and that of US bonds are under intense scrutiny by top financial authorities.

Analysis

The U.S. national debt has reached a significant $37 trillion, with a new budget bill projected to add an additional $3 trillion, intensifying concerns over fiscal sustainability. These concerns are manifesting in tangible market signals, including a material weakening of the U.S. dollar, which has fallen 10% against the British pound and 15% against the euro since the start of the year. Concurrently, the Treasury yield curve has steepened, indicating that investors are demanding higher compensation for long-term credit risk, a classic sign of eroding confidence in long-term fiscal health. This is particularly noteworthy as it occurs despite a slower pace of U.S. interest rate reduction compared to Europe, a factor that would typically support the dollar. Prominent figures like Ray Dalio have characterized the situation as an "inflection point," warning that annual debt servicing costs could soon reach $10 trillion and suggesting a deficit reduction from 6% to 3% is necessary to avert a crisis. The potential resolutions—drastic austerity, inflationary monetization of debt, or an outright default—all carry severe economic consequences. However, the dollar's role as the world's primary reserve currency provides a significant, albeit potentially temporary, backstop. As noted by Mohamed El-Erian, the dollar remains the "cleanest dirty shirt," with a lack of scalable alternatives forcing global reliance despite its evident weaknesses.

Key Decisions for Investors

• Investors should evaluate their exposure to the U.S. dollar, as its recent 10-15% decline against major currencies and expert commentary suggest hedging or diversifying into assets like gold, the euro, or the pound may be prudent.
• Closely monitor the U.S. Treasury yield curve, as continued steepening would signal worsening long-term fiscal sentiment and could justify reducing exposure to long-duration U.S. government bonds.
• Portfolio strategies should account for the binary long-term risks of either significant fiscal tightening, which could hinder economic growth, or inflationary pressures resulting from potential central bank monetization of government debt.
• Despite mounting fiscal risks, acknowledge that the dollar's entrenched role as the global reserve currency may prevent a near-term collapse, suggesting a balanced approach rather than an outright bearish stance on all U.S. assets.