Bank stocks fall 3% as AI disruption fears and a flat yield curve hit financials

Financial stocks sold off sharply on Tuesday as two distinct threats landed at once: investors fretted that artificial intelligence is coming for wealth management, and a flattening Treasury yield curve squeezed the economics of bank lending. The S&P 500's bank sector finished down 3% while the broader financial index lost 2%.

Money managers bore the brunt of the selling. Charles Schwab plunged 6.1%, while Ameriprise Financial fell 4.4% and Raymond James lost more than 3%, pacing the decliners in a financial sector that finished broadly lower.

The spark was an unlikely one for bank investors: an app-store chart. Meta's Muse, an AI agent from Meta Platforms, recently moved past ChatGPT as the most downloaded free app for iPhones, and investors have started to worry the app could compete in the wealth management industry.

The AI-into-finance threat is no longer theoretical. Meta is betting consumers will let agents handle the chores — booking, forms, inboxes — that banks and brokers have traditionally wrapped into client relationships. Whether a free app becomes a wealth manager is an open question. What moved markets on Tuesday was investors pricing the possibility.

The second pressure point was the bond market. The gap between two- and 10-year Treasury yields collapsed to its flattest since March 2025 — just 17.90 basis points at the day's low, ending near 21 basis points, down from 55.5 basis points on August 18. A flatter curve compresses the spread banks earn between funding costs and lending rates. And as traders have increased their bets on Federal Reserve rate hikes, the curve has kept flattening.

"There's a tipping point between raising rates reflecting a strong economy and raising rates and having the effect of slowing the economy," said Rick Meckler, partner at Cherry Lane Investments.

A third drag came from the market for new listings. SB Energy, a SoftBank-backed data-center developer that had planned an IPO for this month, postponed the launch of its roadshow after filing paperwork, and nuclear-services company Holtec suspended its planned US offering last week — delays tied to AI-infrastructure companies, following a New York Times report on Monday about stalled listings. Underwriting is fee income banks were counting on.

Not everyone was rattled. Sykes said the long-term case for bank stocks still holds: "The short-term noise does not affect our appreciation for the long-term outlook. The outlook in general for banks is pretty good. There's a good economy and good employment. The fundamentals are good."

What comes next is a rates story and an earnings story. When the big banks report third-quarter results, investors will hear directly whether loan growth and fee pipelines are holding up, and what management makes of the AI threat. Until then, financials are trading like a sector with two discounts applied at once: one for the economy, one for disruption.