Recent bond market pressure has lifted the 30-year Treasury yield to 5.47-5.48% as of late September 2026, its highest levels since 2004 amid a selloff extending several weeks. Primary drivers include resilient U.S. growth data, elevated oil prices stoking inflation concerns, persistent fiscal deficits, and heavier Treasury issuance that heighten long-term borrowing needs. Traders price in firmer monetary policy expectations after hawkish Federal Reserve commentary, with the 10-year yield also reaching multi-year highs near 5.20%. Key near-term catalysts include upcoming CPI releases, employment reports, and FOMC communications that could shift rate-path expectations and influence whether yields test further highs before year-end resolution.