In equities trading, analysts estimate total revenue slipped 2 per cent to US$7.2b. Stock-trading leader Morgan Stanley may post the sharpest decline, about 6 per cent.
Spokesmen for the five banks declined to comment.
Trading results are closely watched. The business generates about 25 per cent of total revenue at the five banks and tends to be their most volatile major business. And to be sure, analysts -- often drawing on banks' own commentary -- usually underestimate results. Citigroup's net income, for example, has beaten their average estimate for 13 straight quarters. This time, the depth of a trading dip may be curtailed by an expected boost in lending fees.
Bank leaders began tamping down expectations at investor conferences six weeks ago. JPMorgan Chief Financial Officer Marianne Lake delivered the first warning, telling investors trading revenue was down roughly 15 per cent in the quarter's initial two months, hurt most by fixed-income trading. Equities held up better, she said, especially in derivatives and among units that cater to hedge funds.
That same day, Bank of America Chief Executive Officer Brian Moynihan added to investors' dismay by revealing his firm's trading decline would probably be between 10 per cent and 12 per cent. Both executives blamed diminished client activity and low volatility. Citigroup CEO Michael Corbat soon echoed the prognosis, saying his firm is "right in line."
Jefferies Group, which starts its fiscal year a month ahead of larger investment banks, reported a 6.9 per cent decline in trading in the quarter ending May 31. Muted activity proved tough for desks handling corporate securities, leveraged credit and emerging markets. Mortgage and rates traders fared better.
Altogether, corporate-bond trading volume on Wall Street dropped 13 per cent in the second quarter to US$1.14 trillion compared with the first quarter, according to data compiled by Bloomberg. And in equities, the VIX Index, a closely watched measure of volatility developed in the 1990s, dropped to its lowest level in more than 23 years.
In interviews, 20 senior traders at more than a dozen major investment banks and hedge funds said that sometimes left staffs with too little to do, prompting boredom. One portfolio manager said he left work for a few hours in late June to play his recently delivered Nintendo -- the NES Classic Edition -- a new miniature version of the iconic video game console originally released in 1985.
The manager who traveled to Massachusetts for an afternoon of golf said his firm only schedules big staff outings when things are pretty much dead. The executives asked not to be identified discussing their activities.
One bank trader said the quarter felt particularly dull because of the months-long crescendo of activity that led up to it. Britain's vote to exit the European Union jolted markets last June. Trump's election victory in November extended the run.
But in the second quarter, the flurry subsided. The slowdown soon began to chip away at the so-called Trump Bump that once boosted bank stocks. Investors are concerned the president and his Republican allies may struggle to enact policies to help big Wall Street banks.
"What's frustrating people more than anything is the lack of movement," said Thomas Roth, head of Treasury trading at MUFG Securities Americas Inc. At this point, traders need a major overhaul of U.S. regulations, a significant shift in fiscal or monetary policy, or some other surprise to trigger sustained investor action, he said.
"Something always blows up over summer," he said. "We've seen it for many years."
But even an escalation -- or resolution -- of tensions with North Korea, or a terrorist attack, would probably only spur a "a very short and temporary impact," Compass Point Research & Trading bank analyst Charles Peabody said.
Of course, some traders said they are used to a slowdown near the end of any second quarter as colleagues take summer vacations. Others said they were filling their calendars, meeting with additional (often idea-hungry) clients. One senior sales executive said he was using the time to scoop up new hires, anticipating his firm will gain equity commissions as some rivals' weak volumes force them to pull back.
"As a salesman or trader, it does get to the stage where you go, 'Christ, what am I going to do for the rest of the day?'" said Chris Wheeler, a bank analyst at Atlantic Equities. "I don't think anyone is going to be that keen to be on the desk when it's so quiet. The danger is people get quite bored."