source:[1] Why American Express Stock Gained 11% in August (https://www.fool.com/investing/2025/09/05/why ...)[2] Why American Express Stock Gained 11% in August | The Motley Fool (https://vertexaisearch.cloud.google.com/groun ...)[3] Anticipating the Fed's September 2025 Rate Cut: Implications for Equity and Fixed-Income Markets - AInvest (https://vertexaisearch.cloud.google.com/groun ...)