U.S. Federal Debt Increased from Approximately $14.8 Trillion in 2011 to About $39.1 Trillion Currently, an Increase of About 164%

This set of numbers highlights not just the surface-level "debt hitting a new high," but the structural changes between the increment and the size of the economy. Between 2011 and 2026, U.S. nominal GDP roughly doubled, but the size of the national debt increased by about one and a half times, indicating that the growth rate of debt has long outpaced economic growth, raising the "debt-to-GDP ratio" from below 100% to close to or slightly above 100%, with the CBO predicting further increases in the next decade. This suggests that the federal government is increasingly reliant on additional borrowing to maintain existing spending commitments, rather than merely responding to crises with temporary measures.

Structurally, the increase in debt over the past fifteen years is not a single event but the result of multiple shocks and overlapping policies: the aftermath of the financial crisis, tax cuts, rising social security and healthcare spending due to an aging population, and large-scale fiscal stimulus during the pandemic followed by soaring interest costs under high rates. Among these, the most "self-reinforcing" aspect is the interest expenditure itself: as rates have risen from near zero to over 3%, even without expanding new projects, merely "paying interest on past debt" consumes an increasing amount of fiscal space due to the larger debt base.

This also alters the role and risk profile of the U.S. in the global financial system. On one hand, U.S. Treasury securities remain the world's core risk-free asset, with approximately $39 trillion in debt also serving as the "anchor" for global financial asset allocation, as both foreign and domestic institutional investors hold substantial positions in U.S. debt. On the other hand, when the growth rate of debt consistently exceeds that of GDP, and the share of interest expenditure in the budget continues to rise, maintaining this structure in the future can only rely on a few of three paths: higher taxes, slower spending growth, or a looser monetary environment—each of which carries different political and financial costs.

For asset pricing, this combination of "long-term high debt + high interest rates" will fundamentally alter the risk-free return anchor for capital. Current Treasury yields are much higher than they were a decade ago, meaning that risk assets must present stronger growth narratives to offset the rising risks from interest rates and debt. Simultaneously, the rigid increase in Treasury supply means the market must continuously absorb large new issuances, marginally squeezing the funding share of other assets, intensifying the tension between "allocating safe assets" and "chasing yield" in global capital—this is the deeper long-term contradiction behind the debt curve that has persisted since 2011.