However, lackluster M&A activity was a drag on advisory revenue, which declined 29% from the fourth quarter and 34% from the year-ago quarter to $281 million.

Equity and debt underwriting fees declined 27% and 16% respectively from the year-ago quarter but were up 63% and 48% respectively on a sequential basis.

CEO Jamie Dimon has said that investors should expect the trading and investment banking business to be volatile, but declared in an investor presentation earlier this year that the weakness in trading and investment banking is purely "cyclical" and not "secular."

Other bank execs have not been quite as quick to weigh in on the cyclical versus secular debate.

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2. Loan Growth Continues but at Slower Clip: The bank continues to see loan growth in commercial banking and business banking, but overall loan growth was flattish.

End of period loan balances at the commercial banking segment rose 16% from the prior year to $115.8 billion.

End-of-period business banking loans were $17.8 billion, up 5% from the year-ago quarter and 1% from the fourth quarter.

However, total loans were flat versus the fourth quarter, with credit card loans declining 5% and other consumer loans dipping 1%.

3. Mortgage Banking Revenue Booms: The bank reported mortgage fees and related services income of $2.01 billion in the first quarter, up 177% from $725 million in the previous quarter. In the year-ago quarter, the bank posted a mortgage banking loss of $487 million.

Mortgage loan originations were $38.4 billion, up 6% from the year-ago quarter and flat from the previous quarter; Retail originations (branch and direct to consumer) were $23.4 billion, up 11% from the prior year and flat from the previous quarter.

Mortgage banking was expected to be strong, as lower mortgage rates and changes to the government's HARP program has boosted refinancing activity. Mortgage loan volume applications up 33% from the prior year.

However, Dimon noted elevated costs and losses in its mortgage business. The bank also took a $2.5 billion reserve for additional mortgage-related matters.

Management said during a media conference call that it was "conservatively and comprehensively" reserved for mortgage litigation matters.

4. Expenses Spiral Higher: Total non-interest expense rose 15% to $18.345 billion from the year-ago quarter. The bank's overhead ratio- non interest expense as a percent of revenue- was 69%, compared to 63% in the year-ago quarter.

Net of the $2.5 billion litigation expense, expenses was $15.85 billion which was more or less flat.

Management said during the analyst conference call that it expects expenses to come down over time.

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