QuantumScape

QuantumScape Stock Surges 13% After Hours: A 100 MWh Battery Line for AI Data Centers Just Changed the Story

2026-10-21

QuantumScape stock surged more than 8% in extended trading on Wednesday, October 21, 2026 — with one market report putting the jump at 13.57% to $4.52 — after the solid-state battery maker announce...