An old article states dated September 13,2017
"bitcoin is a fraud that will blow up, says JP Morgan Boss"
Actually It's not Morgan, it's Jamie Dimon who told that BTC is a fraud."bitcoin is a fraud that will blow up, says JP Morgan Boss"
JPMorgan's attempt to build their own web cash in 2013 and claimed that they will make Bitcoin's alternative, but they were rejected and failed to launch their web cash. 
Jamie Dimon is just like others (CSW, McAfee etc) who want to cause FUD in the market for their own selfish reason.