IUSG is trading at $180.65 (-6.82%) after hours; broad after-hours catalysts are limited, with no confirmed sector-wide catalyst in available reporting. - On September 29, technology weakness and rising Treasury yields pressured growth stocks: the Nasdaq fell 0.9%, while the 10-year Treasury yield reached 5.234%. - Higher crude and U.S.-Iran tensions also weighed on risk sentiment, but do not establish a cause for the much larger after-hours move. - Micron’s earnings are scheduled for September 30 and have not yet been reported.