US regional bank shares sink on credit worries after fraud disclosures
Western Alliance and Zions Bank disclose exposure to alleged fraud
Western Alliance and Zions Bank disclose exposure to alleged fraud

Smaller banks are being squeezed by Wall Street giants such as JPMorgan and Bank of America

Fast-growing market comes under greater scrutiny for potential risks after series of setbacks

US lenders expected to cement global dominance by a significant easing of post-financial crisis rules

Regional bank filed lawsuit in New York state court on Friday

Investors fret over growing strains in private credit and risks of AI disrupting the software industry

Federal Reserve may need to begin asset purchases if short-term rates flare up again