U.S. Treasury yields closed the week higher across the curve as a historic bond sell-off pushed the 10-year to levels not seen since 2007. Federal Reserve officials hardened their tone on inflation even as a Treasury buyback program struggled to slow the climb, while a flood of AI-related corporate debt added further pressure on yields.
The 10-year Treasury yield rose 17.1 basis points for the week to close at 5.167%, a level not seen since June 2007. The 30-year yield jumped 16.5 basis points to 5.492%, its highest since June 2004, while the more rate-sensitive 2-year yield climbed 12.1 basis points to 4.864%. The sell-off eased slightly on Friday, mainly in shorter-term instruments, as oil prices slipped and offered some reprieve from energy-driven inflation concerns.
Traders eye 6% as the next pain point
The 30-year yield climbed by the most this week since May 2026, while the benchmark 10-year advanced for a fourth straight week. Fixed-income desks are now watching 6% on the 10-year as the next threshold that could force liquidations across broader risk assets and equity multiples. Institutional allocators are working to absorb the rise, driven by resilient U.S. economic data that has refused to buckle under prior monetary tightening. As federal debt supply mounts, long-end bondholders are demanding an increasingly elevated term premium to hold long-duration paper.
Bessent buybacks fail to stem the bleeding
The Treasury Department ran another oversized secondary-market operation, purchasing $4.078 billion in 20- and 30-year bonds out of $10.468 billion offered under its expanded $6 billion buyback program. Fixed-income desks call the intervention a minor offset against fundamental duration liquidation. Meanwhile, Fed Governor Michael Barr, Philadelphia Fed President Anna Paulson and New York Fed President John Williams all struck a hawkish tone, signaling more rate hikes may be needed to curb inflation. Chicago Fed President Austan Goolsbee warned that policymakers must treat the current energy shock as a persistent inflation source rather than a temporary supply blip. Following the hawkish remarks, CME FedWatch data now shows a 70% probability of a quarter-point hike in October, up from 50% before this week's data.
AI debt issuance adds to the pressure
Hyperscalers, data-center developers and energy suppliers have issued hundreds of billions of dollars in new long-dated corporate paper to fund AI infrastructure, competing directly with Treasuries for capital. The S&P 500 is up just 0.2% this month as yields surged, compared with a rally of more than 3% in September 2025.
According to Investing.com, "Financial assets compete for capital and when you can earn a “risk free” 5%", said Sean Peche, founder and portfolio manager at Ranmore Fund Management, who added that high operating margins and valuations leave little room for further gains.
Source: Investing.com
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