TLT is trading 3.4% higher after hours, tracking a modest Treasury rally as the 10-year yield slipped below 5%. - The 30-year yield also declined on September 22, 2026; lower oil prices and reduced inflation concerns likely supported bonds, though reported yield moves were small. - Fed Vice Chair Philip Jefferson discussed discount-window modernization and Treasury-market functioning, not policy guidance; no late-breaking Fed signal emerged. - Thin liquidity or quote distortion may explain the unusually large gain; Nasdaq rose while Dow fell, leaving a primarily global macro and rates-related catalyst rather than equity-sector news.