The term MSCI U.S. Prime Market 750 Index refers to a composite that includes large and mid-cap companies located in the United States. The MSCI U.S. Prime Market 750 is published and maintained by Morgan Stanley Capital International (MSCI).
The MSCI U.S. Prime Market 750 is designed to measure the performance of the mid-sized and large capitalization companies in the United States equities market. The index represents roughly 85% of the free float adjusted market capitalization of the U.S. equities market. At the time of writing, there were 741 constituents in the index, which is a composite of:
First launched on March 27, 2003, the companies included in the index are selected based on float-adjusted market capitalization. All MSCI market capitalization indexes are fully reviewed at the end of May and November. Partial reviews take place in February and August. The performance of this index can be monitored via the ticker symbol MSCIPM and Bloomberg's real time ticker symbol MZUSP.