QuantumScape Corporation (QS) Stock Sinks As Market Gains: What You Should Know Posted byZacks Equity Research October 20, 2021 Leave a comment on QuantumScape Corporation (QS) Stock Sinks As Market Gains: What You Should Know QuantumScape Corporation (QS) closed the most recent trading day at $25.14, moving -0.75% from the previous trading session.