Pokémon cards spiked 20% in value over the past few months. Here's why

The Pokémon card boom is getting bigger, with overall value of cards rising recently--and some individual cards increasing by as much as 150%. It might sound a little silly that there's an entire subgenre of influencers who offer investment advice around Pokémon trading cards. Probably because it is a little silly. The idea of some YouTube Jim Cramer breathlessly warning viewers that "Surging Sparks is setting a fire under collectors and investors" is the stuff Saturday Night Live sketches are...