Online travel stocks caught a break on Tuesday, as shares recovered a sliver of their losses after concerns that the "Brexit" vote signalled a long, painful holiday for companies with exposure to the U.K. and Europe travel markets. Expedia , Priceline , TripAdvisor and Sabre gained on Tuesday, but have not recovered losses following the vote. Priceline is the largest of the group, with a nearly $60 billion market cap, and has the greatest exposure to the U.K.