"Shark Tank" investor Kevin O'Leary is increasing his bets in the collectibles space, which could explain why he revealed Monday that he is a co-owner of the most expensive trading card purchase ever.

A unique Michael Jordan and Kobe Bryant card has officially surpassed the two most iconic baseball cards in history to claim supremacy in the sports card world. The one-of-a-kind Jordan and Bryant ...

Almost one year after a Honus Wagner T-206 trading card sold for a record-breaking $6.6 million, a new card of the same type has topped the mark, according to collectibles marketplace Goldin: 🚨 ...