It has been a volatile couple of months for NIO Inc. (NYSE: NIO ) stock. Since NIO’s last earnings update , the stock had climbed close to 50% to more than $7 apiece, supported by a combination of ONVO-led momentum, sustainedAnalyst’s Disclosure: I/we have no stock, option or similar derivative position in any of the companies mentioned, and no plans to initiate any such positions within the next 72 hours. I wrote this article myself, and it expresses my own opinions. I am not receiving compensation for it ...