State Street Corporation is an American multinational financial services and bank holding company headquartered at One Congress Street in Boston. It is the second-oldest continuously operating U.S. bank, tracing its roots to Union Bank, chartered in 1792. As of the third quarter of 2025, State Street is one of the world's largest asset managers and custodians, with approximately US$5.4 trillion in assets under management and US$51.7 trillion under custody and administration. State Street operates globally through three main divisions: Global Services, Global Advisors, and Global Markets. It is considered a systemically important bank by the Financial Stability Board and ranks among the "Big Three" index fund managers alongside BlackRock and Vanguard. The company is ranked 198th on the Fortune 500 as of 2025. The company is on the Financial Stability Board's list of banks considered too big to fail. It is rated by Visual Capitalist as the third U.S. bank by uninsured deposits, with 91.2% of deposits being uninsured. Wikipedia