IJR is trading 6.9% up at $146.31 after closing at $136.91 on September 29, 2026; no IJR-specific announcement or clear catalyst was found for the after-hours jump.
- Major U.S. indexes closed lower in the regular session as Treasury yields climbed to multiyear highs, unlike IJR’s sharp after-hours rise.
- IJR tracks U.S. small-cap stocks through the S&P SmallCap 600 index; its immediate move remains unexplained.