Treasury yields surge to multi-decade peaks ahead of 10-year bond auction

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United States government bond yields climbed sharply on Wednesday morning, revisiting heights not recorded in more than two decades as market participants prepared for significant new sovereign debt supply. The benchmark 10-year Treasury yield rose nearly 8 basis points to reach 5.35%, marking its highest reading since 2002. At the long end of the curve, the 30-year bond advanced 8.3 basis points to 5.724%, establishing a 24-year high, while the policy-sensitive 2-year Treasury note yield rose 2.7 basis points to trade at 4.818%.

The sharp run-up in borrowing costs comes as the U.S. Department of the Treasury readies an auction of $39 billion in 10-year notes, testing institutional appetite against lingering worries over stubborn inflation, mounting federal debt, and rising term premiums. This offering marks the second debt sale of the week, following Tuesday's issuance of $58 billion in 3-year notes and ahead of a planned $22 billion 30-year bond sale scheduled for Thursday. Investors are also reviewing global debt headwinds alongside expectations for the Federal Reserve's September meeting minutes.