How the AI boom fuels gains for Wall Street's biggest banks
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The AI buildout is turning into a profit engine for the big banks, as the tech giants tap Wall Street to finance enormous capital spending and AI-fueled stock gains lift trading revenues.
Why it matters: Banks are cashing in on the AI boom across debt underwriting, advisory and trading — while largely distancing themselves from concerns that the rally could be forming a bubble.
State of play: Morgan Stanley's debt underwriting revenue jumped to $785 million in the fourth quarter, up 93% from a year ago — the biggest increase on Wall Street.
- Tech companies are borrowing aggressively to fund AI infrastructure, especially data centers, with spending hitting over $700 billion in 2025.
- Morgan Stanley arranged tens of billions of dollars in AI-related debt in the fourth quarter alone, including more than $27 billion tied to Meta's Hyperion data center in Louisiana, as part of Morgan Stanley CEO Ted Pick's push deeper into debt capital markets.
- The broader AI boom in the stock market is also helping financial institutions: Trading revenue at Goldman Sachs hit a record high, and rose 10% at Bank of America from the prior year.
- AI adoption is another potential profit boom for the major banks: JPMorgan Chase pinned some of its expense increases for the quarter on its tech investments.
What they're saying: Underwriting tech debt is an opportunity, "but also comes with risks," Mac Sykes, portfolio manager at Gabelli Funds, tells Axios.
- Still, Morgan Stanley is "well positioned to benefit from" the "AI infrastructure productivity wave," Sykes notes, adding that the firm's risk appetite is disciplined and well diversified when it comes to its loan books.
Between the lines: Remember, the circular funding problem means if these companies are taking out debt to pay each other, that helps each other's earnings —as well as their lenders.
- For now, more debt = more spending = more earnings, and future bubble questions regarding this are not acceptable in rooms with Wall Street strategists!
Yes, but: It's not just AI fueling gains for the banks.
- Financial conditions are loose, and the Trump administration's deregulation stance has allowed for an increase in capital markets activity.
- Investors like Sykes expect more to come amid what could be a $3 trillion IPO boom in 2026, with giants like SpaceX and OpenAI potentially going public.
What we're watching: Whether AI-driven capex remains strong enough to sustain debt issuance and stock market gains in 2026.
- That could have implications far beyond the tech sector.
