The current downward trend with BKNG was a surprise, specifically because of the Q2 outlook. 

BKNG trading signals predicted the negative cycle in mid - March, showing a highly volatile market.

Data relating to marketing costs and return as well as high competition without product diversity were some of the reasons for the decline.  #BluSignals

https://www.blusignalsystems.com/bkng-stock-trading-signals-predicted-decline/