Nio gets a new cash investment as it launches its new, mass-market brand.Nio (NIO 12.58%) shares are down almost 30% so far this year. But anyone who bought stock in the Chinese electric vehicle (EV) maker more recently has done quite well. Nio shares have soared by more than 65% over the past month.The stock continued to surge again today as the trading week started. Nio's U.S.-listed American depositary shares had gained 12.7% as of 10:15 a.m. ET. Some of the recent spike came from China's latest plan to ...