**Elevated 30-year Treasury yields near 5.35% as of mid-September 2026 reflect persistent inflation pressures, heavy fiscal supply, and shifting monetary policy expectations.** August CPI held at 3.4% year-over-year with core at 2.4%, while producer prices showed renewed strength amid higher energy costs tied to geopolitical tensions. These readings, alongside large federal deficits and competing corporate issuance for AI infrastructure, have lifted term premiums and kept long-end borrowing costs at 19-year highs despite stable near-term inflation prints. Markets currently price a high probability of a Federal Reserve rate hike at the September 15-16 FOMC meeting, reinforcing the “higher for longer” outlook. Key near-term catalysts include the FOMC decision, subsequent labor and inflation data, and Treasury auction results, which could influence whether yields test lower levels before year-end or remain anchored by structural supply and policy uncertainty.