Priceline, TripAdvisor slammed, set 52-week lows By: CNBC.com News January 15, 2015 at 17:07 PM EST Priceline and TripAdvisor both closed at new 52-week lows on Thursday-down 28 percent and 40 percent from their respective 2014 highs. Read More >> Related Stocks: The Priceline Group TripAdvisor