QuantumScape (QS) Stock Surges 180% on Solid-State Battery Breakthroughs – What’s Next After a Sudden Plunge?
Stock Price & Recent Performance QuantumScape’s headquarters in San Jose, CA. The battery startup’s stock was a top performer in 2025, surging nearly 200% amid solid-state battery hype. QuantumScape’s stock (NYSE: QS) has seen a roller-coaster 2025. After starting the year in the single digits, QS went on an explosive run, gaining roughly 170–180% year-to-date as of mid-October 247wallst.com. The rally accelerated in late September and early October, when a string of positive announcements (detailed below) sent the stock to new heights. Shares hit an intraday peak around $16.49 by October 3 and continued upward to flirt with the $19