Popularity is a thing that sometimes comes up all of a sudden, when you are not expecting it at all. Workhorse (NASDAQ: WKHS) was not known by the general public a week ago, but no sooner had Donald Trump mentioned it in his Twitter, its trading volume rose from 200k to 49M shares over a single session (FB, for instance, has an average of 13M), while the stock price went up by over 200%. The Workhouse management was probably not quite ready for such an explosion in popularity, with the company website being completely down.