Nice headline of the newspapers, however reading what he said in the interview, he seems to have referred to blockchain not bitcoin, so not sure he regret it at all....
Jamie Dimon says he “regrets” his now infamous criticism of bitcoin, in which he called the cryptocurrency a “fraud”. The JPMorgan Chase chief executive on Tuesday softened the comments he made at a banking conference in September, saying in an interview on FOX Business Network, a US television station, that “I regret making them”. Mr Dimon said that he personally is “not interested in the subject at all”. However, he said that blockchain, the ledger system that powers bitcoin and is also being used by an increasing number of companies for record keeping, “is real”. He added that initial coin offerings need to be reviewed “individually”. ICOs in which investors pay in cryptocurrency for a company’s “tokens” have been the subject of fraud alerts from US regulators since they provide few investor protections.
https://www.ft.com/content/e04e359a-e9e9-3f8e-8e2f-3f4373e5efb0