Browse Refinitiv's MSCI Global Equity Indexes and gain extensive equity market and emerging markets and enhancing the investability and replicability of. MSCI Global Investable Market Indexes: There will be additions to and deletions from the MSCI ACWI Investable Market Index (IMI). The MSCI ACWI Ex-U.S. Index calculation is determined on the MSCI Global Investable Market Indexes (GIMI) methodology. This approach to index construction.