The Dark Side of Surging Bank Trading Revenue

Banks including Goldman Sachs Group Inc. and JPMorgan Chase & Co. can thank the White House’s aggressive disruptions on tariff policy and other issues for record hauls from equities trading in the first quarter, when market volatility began to surge. Yet some lenders found weak loan demand, increased provisions for credit losses and reduced deal revenue weigh on earnings.

Bank trading revenue has a dark side, too, where every dollar market makers collect is money investors pay. Moreover, the volatility that allows professional traders to multiply profits reduces the attractiveness of securities to long-term investors. Finally, volatility can lead to credit losses and economic underperformance, damaging banks’ prospects in the medium term and even leading to bank failures.

The cyclically adjusted price-to-earnings (CAPE) ratio of the S&P 500 Index has dropped from 38 when President Donald Trump was inaugurated to 33 on Thursday. Applied to the entire US equity market, that’s an $8 trillion decline in equity valuation relative to earnings. Investors are clearly anticipating slower earnings growth than they did in January and applying a higher discount rate to the more volatile cash flows.

All the factors driving these trends have accelerated in April, so there are good reasons to expect 2025 to be a wild ride for investors.

Hedge funds, for example, have struggled amid the turmoil. The Barclay Hedge Fund index was basically flat (up 0.05%) for 2025 through the end of March. Hedge funds tend to be naturally short volatility — they make money when volatility falls and lose money when it rises — but, like bank traders, they can take opportunistic advantage of active trading by institutions and individuals. Those two effects seem to be offsetting for now.