The bank, the nation's largest by assets, reported a net loss of USD 380 million on revenues of USD 23.12 billion, due in large part to a USD 9.15 billion charge for legal expenses following a series of high-profile regulatory problems.
However, when the special items were stripped away, the bank earned USD 1.42 per share, 21 cents above expectations.
JPMorgan chief executive Jamie Dimon said the results demonstrated "strong underlying performance across the businesses" but that results were "marred by large legal expenses."
"While we expect our litigation costs should abate and normalise over time, they may continue to be volatile over the next several quarters."
JPMorgan in September signed off on a USD 920 million settlement to resolve some civil charges related to the "London whale" debacle, during which the company lost USD 6.2 billion in errant and poorly-managed trades.
The bank in July also agreed to pay USD 410 million in penalties to resolve charges it manipulated some US electricity markets.
Moreover, the bank is in talks with the Justice Department over a large settlement related to its sale of mortgage-backed securities ahead of the housing bust. The housing settlement could reach USD 11 billion or more.
The quarterly loss today compared to a profit of USD 5.71 billion in the year-ago period on revenues of USD 25.15 billion.
