JPMorgan Chase & Co. Chief Executive Jamie Dimon is upbeat on the prospects for the world's largest economy, telling investors on Thursday that pessimism is overdone and the economy is actually "getting stronger."

"The underlying dynamics are pretty good, pretty broad-based and getting stronger, not weaker," Dimon said.

U.S. companies have the most cash in decades and are making "good profits," said Dimon, who heads the second-biggest U.S. bank by assets.

"The consumer is far stronger than two or three years ago," added Dimon, who was speaking at a Sanford C.Bernstein investor conference.