Big Six

The "Big Six" refers to six major international banks that historically held a large share of the global banking market. These banks—JPMorgan Chase, Bank of America, Citigroup, Wells Fargo, Barclays, and HSBC—operate across multiple countries, offering diverse financial services like retail banking, investment banking, and asset management. Their significant presence influences international finance, economic stability, and financial markets worldwide. The term highlights their dominance in global banking, though the landscape is evolving with regional banks gaining prominence and financial regulations changing.