One of the most popular Vans Warped Tour shows of 2018 was Tuesday July 31st at Cellairis Amphitheatre at Lakewood. Interest for that show and ticket prices declined during that time.
Across all Vans Warped Tour shows in 2018, interest was strongest right when the shows were announced and tickets went on sale. Meanwhile, ticket prices typically remained consistent from the date a show was announced until the days leading up to the show.