JPMorgan Chase's investment banking division unexpectedly grew in the second quarter, signaling potential recovery in dealmaking activity after widespread caution caused by U.S. tariff policies.

The bank stated Tuesday that investment banking revenue rose 7%, starkly contrasting with analysts' projection of a 14% decline. The institution recorded its strongest second-quarter performance ever in equities trading, while fixed-income trading also surpassed expectations.

Chief Executive Jamie Dimon noted in the statement that "investment banking activity started slowly but gained momentum as sentiment improved." This better-than-anticipated performance offers an early glimpse into how the Trump administration's capricious tariff policies have impacted business results, while also providing fresh insight into the health of American consumers and corporations. Bank of America, Goldman Sachs, and Morgan Stanley are scheduled to report earnings Wednesday.

Merger advisory services at major banks had become a concern for many investors, as this year's anticipated rebound stalled amid contradictory tariff announcements. Numerous chief executives adopted a wait-and-see approach, pausing for clearer signals. Doug Petno, co-head of JPMorgan's commercial and investment banking unit, told investors in May that many clients "hit the brakes" during market volatility.

JPMorgan shares had climbed 20% this year through Monday. Within investment banking, debt underwriting revenue jumped 12% and merger advisory fees increased 8% - both outperforming analyst forecasts of year-over-year declines. Equity underwriting revenue fell 6%, significantly better than the anticipated 29% drop.

Trading operations delivered robust results: fixed-income revenue reached $5.69 billion, substantially outpacing the $5.22 billion consensus estimate. Equity trading revenue hit $3.25 billion, setting a second-quarter record after achieving all-time highs in the first quarter.