Tesla's (NASDAQ: TSLA) surprise earnings beat last night was shaking up the electric vehicle (EV) industry this morning, as shares of solid-state batteries researcher QuantumScape (NYSE: QS) tumbled 1.5% through 11:15 a.m. ET, but Tesla's Chinese rivals Nio (NYSE: NIO) and Xpeng (NYSE: XPEV) gained 2.7% and 3.4%, respectively. Tesla surprised investors by reporting $1.19 per share in profits on sales of $24.3 billion -- beating on both the top and bottom lines despite cutting prices on its electric cars over the past couple months.