QuantumScape Rockets 200% on Solid-State Battery Breakthrough – Revolution or Reckoning?
With these facts in mind, let’s dive deeper into QuantumScape’s situation and outlook. Market Rally and Key Partnerships In late Sept–Oct 2025, a flurry of announcements sent QS stock into a frenzy. After trading flat ($12–$13) through mid-September, QS jumped 18% on Sept. 18, then another ~18% on Oct. 1, topping out at $16.49 on Oct. 3 ts2.tech. By Oct 13 it was trading around $17.6 (up ~15% that day) marketbeat.com. This roughly 170–200% YTD gain outpaces virtually all peers (the S&P 500 is up ~14% YTD). What drove the rally? Investors applauded new manufacturing partnerships and technology demos. On