Fastly Inc (FSLY) stock is down 27 percent today in a single trading day. Why, because it warned of missing it's revenue forecast due to Tik Tok. Tik Tok only represents 12 percent of Fastly's revenue. If they were to lose all of Tik Tok's business, why did the stock lose 27 percent of it's market cap? We try to answer this question in the video and look at some other high flyer stocks in the stock market to see if FSLY is the start of a trend or is it just a one off.