China is facing an EV slowdown, just like the U.S. Well, not exactly like the U.S. Deliveries from several Chinese electric vehicle makers slipped in April, compared with March. Coming into Friday trading, NIO stock was up 25% year to date and up 58% over the past 12 months. It has been relatively weaker, up only 5% year to date and down 27% over the past 12 months, through Thursday trading.