Bank stocks fell 2.7% on AI worries and flatter yield curve

Bank stocks fell 2.7% on Sept. 22, 2026, Reuters reported, on AI worries and a flattening yield curve. Schwab lost 6.1%, Ameriprise 4.4%, Reuters said. A flatter curve — long-term rates falling toward short-term rates — squeezes what banks earn on lending. That squeeze can reach savers and borrowers.