The big banks’ second-quarter results are in, and they demonstrate incredible market momentum. There was strong growth across most of their businesses, indicating a healthy economy, but the big star was market activity. Investment banking divisions had a fantastic quarter, driven by initial public offerings (IPOs) and other offerings, but consumer banking and mergers and acquisitions had robust activity, too.

JPMorgan Chase (NYSE: JPM) is the largest bank in the U.S. by assets, and it had a blowout quarter. But it’s what CEO Jamie Dimon said about the market now that every investor needs to hear.

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