Both of these stock valuations are being pumped and dumped onto public markets with clever tricks. Funny thing is, many of us won't even realize that some of our money will be invested in these stocks without our knowledge(ETFs/Funds tracking indices). Most 401ks market tracking Funds/ETFs will pick up these horrible stocks in time.
Tech wizards of silicon valley have managed to one-up wall street this time, by creating a 100B taxi app. With the 10B they raise from IPO, they will try more desperate measures to try and close the gap in price($100B-$120B) and value($25B-$35B).