This index, known as the MSCI Total Return Net USA Index, is constructed to mirror the investment performance of prominent American companies, specifically those categorized as large and mid-capitalization. It effectively captures roughly 85% of the publicly traded market value in the United States, with individual holdings weighted according to their adjusted free-float market capitalization. The index composition undergoes a reassessment every three months. For comprehensive insights into the index's methodology, including selection criteria and weighting schemes, please refer to https://www.msci.com.