Trivago Update: From virtuous to vicuous circle in only 7 months ?
When I first reviewed Trivago in March this year, the company looked like an unstoppable growth machine, although much too expensive. Looking at the stock chart we can see that the stock almost doubled after my write-up but then lost 2/3 since its peak in July and now trades -40% against the IPO price 11 months ago:

So what happened ?
In July, Trivago came out confirming their earnings guidance 2017 with +50% in sales and increasing margins. In early September, after the stock had dropped already significantly, they came out with this warning:

