U.S. Treasury yields surged this week, with the 10-year climbing 17 basis points to 5.12 percent on Thursday morning—its highest level in nearly two decades. The 2-year yield rose 10 basis points to 4.87 percent. The move reflects a market repricing of three structural headwinds: economic strength reducing Fed easing expectations, persistent inflation, and expanding federal deficits that are crowding out private capital.

The economic data supporting higher yields is substantive. Real median household income rose 2.6 percent to $87,460 in 2025, while the poverty rate fell half a percentage point to 10.2 percent. Purchasing managers indexes showed positive surprises. The surge in artificial intelligence investment is competing for available capital, adding to upward pressure on borrowing costs.

But the fiscal arithmetic is the binding constraint. The Congressional Budget Office projects the federal deficit will exceed 6 percent of gross domestic product this year. Tax and policy legislation passed last year is estimated to increase deficits by $4.7 trillion over 10 years, though tariffs are expected to offset a portion of that amount. This trajectory is placing acute pressure on Treasury issuance.

Federal Reserve Chairman Kevin Warsh cited heavy debt issuance by banks and financial institutions, alongside tight credit spreads, as key factors in last week's rate hike. Warsh stated the Fed's primary mission is ensuring "continuous, sustainable, durable, economic growth," acting to mitigate inflation risk. Following the hike, Fed Governor Michael Barr and other officials indicated further rate increases would likely be necessary.

Treasury Secretary Scott Bessent announced expanded buybacks of long-dated government debt in an attempt to manage rising yields. The intervention failed to prevent 10-year yields from surpassing 5 percent.

Warshs's decision to tighten policy has constrained long-term yields by removing uncertainty about future Fed actions. Had rates remained unchanged, traders would have priced in additional compensation for timing risk on future tightening, likely pushing the 10-year even higher. His influence on long-end yields, however, has structural limits when deficits are expanding.

The trend is not U.S.-specific. Investors globally are demanding greater compensation to hold longer-maturity debt, reflecting a broad recalibration of borrowing-cost expectations after years of slow growth and low rates.