QuantumScape’s High-Voltage Surge: Solid-State Battery Breakthrough Sends QS Stock Soaring (Oct 2025 Update)
QuantumScape shares closed at $15.92 on Oct. 3, up 11% for the day and 170% year-to-date, after announcing a partnership with Corning to co-develop battery separators. At the Munich auto show, Volkswagen’s Ducati prototype using QuantumScape cells demonstrated rapid charging and high energy density. Most analysts still rate the stock “Sell” or “Hold,” citing a lack of product revenue.