But since the financial crisis of 2008, investors have shifted to index funds, which replicate established stock indices, such as the S&P 500. Lower fees aside, the rise of index funds has entailed a massive concentration of corporate ownership. Together, BlackRock, Vanguard and State Street have nearly US$11 trillion in assets under management. In a recently published paper, our CORPNET research project comprehensively mapped the ownership of the Big Three. We found that the Big Three, taken together, have become the largest shareholder in 40 percent of all publicly listed firms in the United States. https://freewestmedia.com/2021/11/22/these-three-firms-own-corporate-america/