U.S. banking giant JPMorgan's JPM.N shares were down 2.4% at $326.80 premarket.
JPM reported profit of $21.2 billion, or $7.70 per share, in the three months ended June 30, compared with $14.99 billion, or $5.24 per share, in the year-ago period.
The bank raised its forecast for 2026 expenses to $107.5 billion.
Investment banking fees surged about 30% in the second quarter from a year earlier.
As of the last close, the stock was up nearly 4% year to date.
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