Bond selloff is likely amplified by obscure economic rate

• The New York Fed's R-star estimate stands at 1.65% through Q2 2026, up from 1.36% in Q1 2025, though analysts believe the true neutral rate is likely higher due to AI infrastructure spending by hyperscalers like Amazon, Microsoft, and Google.
• A higher R-star is putting upward pressure across the yield curve, with the 30-year yield experiencing a 'historically asymmetric impact' due to elevated debt levels and persistent fiscal deficits.
• Analysts suggest the AI-driven increase in R-star could be temporary if AI proves disinflationary long-term, but the combination of massive private sector AI investment and heavy government borrowing is likely to keep the neutral rate elevated in the near term.

Summary: Bond Selloff Amplified by Rising R-Star Estimates

The recent Treasury bond selloff is partly driven by investor expectations that R-star—the neutral interest rate consistent with stable growth and inflation—is rising above current estimates. The New York Fed's R-star model shows a rate of 1.65% through Q2 2026, up from 1.36% in Q1 2025, though market participants believe the actual rate is likely higher.

Key Drivers:

Two primary factors are pushing R-star higher: heavy capital investment in artificial intelligence infrastructure by hyperscalers (Amazon, Microsoft, Alphabet's Google) and elevated U.S. government borrowing. The national debt has reached unprecedented levels, creating simultaneous public and private sector demand for capital.

Market Impact:

A higher R-star suggests interest rates will remain structurally elevated, putting upward pressure across the yield curve. The 30-year yield faces "historically asymmetric impact" due to persistent deficits and competing debt issuance. Two- and five-year yields are rising as markets price in a higher ultimate Fed policy rate. This environment complicates the Federal Reserve's rate-cutting plans and affects everything from mortgage costs to government borrowing expenses.

Expert Views:

Analysts at Truist Wealth and CreditSights note that estimating R-star involves "equal parts art and science" and is notoriously difficult. UBS's CIO stated the Fed "cannot easily cut interest rates back to zero when structural demand for capital remains this high."

Outlook:

While AI investment may prove disinflationary long-term, potentially lowering R-star, analysts caution it will take years to determine whether current conditions represent a structural shift or temporary phenomenon. The immediate trajectory points to higher-for-longer interest rates.