April 22, 2021 With shares holding steady for the past month, should you buy the pullback in electric-vehicle (EV) maker Nio (NYSE: NIO)? Not so fast. NIO stock still remains popular among investors, even after its more than 40% slide from its all-time highs. Source: xiaorui / Shutterstock.com As I detailed back on Apr. 9, investors were satisfied with its solid March delivery numbers. However, that’s still not enough to sustain today’s valuation, much less a rebound back towards prior highs of around $60 and beyond. Upcoming news could put more pressure on this stock, which was one of 2020’s top performers. What sorts of new developments could hurt Nio? Mainly, the potential for April delivery numbers to fall short of expectations. March numbers, which showed a month-over-month increase of around 30%, may have been sufficient. But given much of that increase was due to the Lunar New Year falling in the prior month, this month’s sequential growth could be substantially lower.