QuantumScape (QS) Stock Today: New Top-10 Automaker Deal, Nasdaq Listing Switch, Insider Filings, and Analyst Forecasts (Dec. 17, 2025)
QuantumScape Corporation (NYSE: QS) is back in the spotlight on Wednesday, December 17, 2025, after the solid-state battery developer announced a new joint development agreement (JDA) with a Top-10 global automotive OEM—a headline that immediately put QuantumScape stock back on many traders’ and long-term EV-battery watchlists. Business Wire+1 The latest update lands at a time when QS shares have been swinging sharply: the company is posting notable commercialization milestones and partnership progress, while investors continue to debate valuation, timelines, and how quickly solid-state breakthroughs can translate into mass production and durable revenue. Business Wire+1 QS stock price action on Dec.