Investment banks suffered their worst first half year performance since the 2008 financial crisis as revenues for the top 12 players fell 15 percent from the same period a year ago, the data showed.
Looming U.S. elections, Britain's vote to leave the European Union in June, near-zero interest rates and worries about China's economy have spooked markets this year and curbed investors' appetite to take risks.
Last week, Citigroup said it expects to post better results in fixed income trading for the third quarter compared with a year ago.
Most of JPMorgan's revenue, some $6.9 billion, was accrued on its home turf but the $3.9 billion generated in its Europe, Middle East and Africa (EMEA) operations was enough to dislodge Deutsche from the top place in that region.
In the same period last year, Deutsche was number one in EMEA with revenue of $4.3 billion. Its slide to number two, even on its home turf highlights how difficult a year it has been for Germany's biggest lender.
JPMorgan also dislodged Deutsche Bank in the Asia Pacific (APAC region) to take top spot with revenue of $1.7 billion in the first half of the year. That was 15 percent lower than the $2 billion Deutsche Bank earned in the same period last year in the region.
JPMorgan retained its crown in fixed income, currencies and commodities (FICC) trading, its position solidified by its dominance in G10 rates and foreign exchange trading. The U.S. bank slipped a place to third in the equities ranking, however.
Coalition tracks Bank of America Merrill Lynch, Barclays, BNP Paribas, Citigroup, Credit Suisse, Deutsche Bank, Goldman Sachs, HSBC, JPMorgan, Morgan Stanley, Societe Generale and UBS.