Posted in Web Nio Stock: December Sales Jump But Tesla Competition Looms … January 12, 2020 Nio Stock Shares reversed sharply lower to close down 3.9% at 3.68 on the stock market today, after surging as much as 10% earlier Monday. Nio stock soared 54% on Dec. 30, retaking the 200-day … https://www.investors.com/news/nio-stock-december-2019-sales-increase-tesla-competition-china-electric-cars/