US 30-year Treasury yields rose to about 5.585% on 29 September 2026, the highest since June 2002, and the 10-year yield (about 5.25%) is the reference for US mortgage, car and credit card rates. Markets expect the US Fed to raise rates again in October (over 72% probability by the article's count). For a Thai SME this is background: watch for higher global borrowing costs, a possibly stronger USD and oil-driven inflation pressure on fuel and imported inputs, but no action is needed on this article alone.