The financial landscape is undergoing a significant transformation as giant investment companies increasingly dominate, managing assets that rival the economies of major countries. In 2008, U.S. banks and fund managers were approximately equal, each managing around $12 trillion in assets. However, by 2024, traditional asset managers, private-fund managers, and hedge funds have surged ahead, controlling about $43.5 trillion, nearly double the banks' $23 trillion. This shift is highlighted by the presence of major players like BlackRock and State Street, whose asset management scale now exceeds the economy of Germany. This growing dominance of giant funds over traditional banks is reshaping Wall Street, with implications for both market dynamics and systemic risk.