US Debt Tops $40 Trillion: Market Turmoil Fears Rise
By ThePip Desk
US public debt surpasses $40 trillion amid widening deficit. Jefferies warns of market turmoil if 10-year Treasury yields hit 5%.
The US government’s total public debt has now surpassed the $40 trillion mark, reaching $40.05 trillion as of August 18, 2026. This 7.8% year-on-year increase intensifies concerns about the nation’s fiscal stability and potential market instability.
This milestone comes as the fiscal deficit continues to widen significantly. The deficit hit a record $432 billion in July alone.
For the first ten months of fiscal year 2026, the deficit stood at $1.799 trillion, already exceeding the full-year deficit recorded in FY25.
Rising Treasury Yields Signal Market Risk
Global brokerage Jefferies highlights that this worsening fiscal position is a primary driver behind the surge in long-term Treasury yields. Recent auctions have clearly reflected this growing pressure.
The 10-year Treasury yield reached 4.683%, while the 30-year yield cleared at 5.216%, both marking multi-year highs. Jefferies identifies a specific critical trigger for market instability.
A 10-year Treasury yield crossing 5% could lead to significant pressure on US equity markets, according to the brokerage.
Underlying Pressures on Government Finances
The fiscal strain is further exacerbated by increased government spending. Spending rose 21.7% year-on-year in July.
Concurrently, government receipts experienced a decline of 1.3%. National defense spending alone saw a 19.9% increase during this period.
Net interest and entitlement spending now collectively account for 98.4% of annualized government receipts. While Treasury Secretary Scott Bessent’s plan to double long-term Treasury buybacks might offer some containment, underlying fiscal pressures persist.
India’s Market Outlook Amid Global Yield Surge
For Indian markets, the primary concern is not the absolute US debt level, but rather the ripple effect of these rising US Treasury yields. A move towards 5% in the US 10-year yield could diminish the appeal of emerging-market assets.
Such a scenario would potentially lead to Foreign Institutional Investor (FII) outflows and a stronger US dollar, which would put pressure on the Indian rupee. Indian bond yields could also experience an increase.
However, a weaker rupee might offer a partial offset by benefiting IT exporters, mitigating some of the broader market impact from higher global yields.