SPRX is trading at $44.67 (-7.80%) in after-hours trading, with no confirmed catalyst for the decline. - Micron’s earnings report is scheduled for September 30, not September 29. - During the September 29 session, technology stocks generally advanced as oil and Treasury yields eased, while AI-related shares supported the Nasdaq. - That daytime strength does not explain SPRX’s after-hours drop; its cause remains unverified.