Institutional investors account for about what share of the dollar volume of equities traded?

1. Institutional investors are investment professionals who are paid to manage other people's money. 2. Most work for financial institutions such as banks, mutual funds, insurance companies and pension funds. 3. They control very large sums and often buy stock in 10,000-share blocks. 4. They are a major force in the securities markets, accounting for about half of the dollar volume of equities traded. _Source: OpenStax Introduction to Business (CC BY 4.0), Ch 16 "Understanding Financial Management and Securities Markets", section 16.6 Securities Markets_