Jamie Dimon, chairman and CEO of JPMorgan Chase, says Thursday he's "not going to talk about bitcoin anymore" after causing a stir in September by calling the digital currency a "fraud."
But on Friday, Dimon responds to a question about bitcoin by saying if people are "stupid enough to buy it," they will pay the price for it in the future.
The banking executive did say he believes the blockchain technology behind bitcoin is valid.
Bitcoin is a fraud, but Blockchain is not? Jamie Dimon is totally insane.