QuantumScape’s High-Voltage Surge: Solid-State Battery Breakthrough Sends QS Stock Soaring (Oct 2025 Update)
QuantumScape’s stock went into “blast-off” mode at the start of October 2025 following a series of positive announcements. After trading flat around $12–$13 through mid-September, QS broke out sharply on the news. It jumped 18% on Sept 18, then another +18.4% on Oct 1, hitting an intraday high of $16.49 by Oct 3ts2.tech. The stock closed Oct 3 at $15.92 – capping a roughly 30% gain in one week and nearly +172% year-to-date performancets2.tech. This breathtaking rally far outpaced the broader market and made QS one of 2025’s top tech stock movers.
