Nio is growing rapidly, as its latest delivery numbers suggest, but this week’s epic rally was driven almost entirely by one macroeconomic trigger. For that matter, Nio’s CEO William Li also had some big things to say this week, including his belief that Nio will give German luxury carmaker BMW a run for its money. Because Nio is a Chinese company, its stock price has been all over the place in recent months as China grappled with surging COVID-19 cases and put large regions, including important manufacturing hubs, under strict lockdowns.