1. A method comprising: receiving, by at least one computing device, a request from a user to find traded items having a price history similar to a price history of a first traded item, the request including an identification of the first traded item; automatically analyzing, by the at least one computing device, price histories of a plurality of traded items within a predefined range, the analyzing finding one or more similar traded items, each similar traded item having a price history over a predefined period that is similar to that of the first traded item, the analyzing the price histories including comparing the price history of each traded item within the predefined range with the price history of the first traded item, the comparing including applying a mathematical function that obtains a comparison score for each traded item within the predefined range, each comparison score indicating the level of similarity of the respective traded item with the first traded item, the analyzing further including identifying a predefined number of traded items having the highest similarity scores as the one or more similar traded items; and sending, by the at least one computing device, information identifying the similar traded items to the user.