The FTSE MIB is the primary stock market index for Italy, representing the 40 largest and most liquid companies listed on the Borsa Italiana. It serves as a benchmark for the Italian equity market, reflecting the performance of major sectors in the economy. Investors and analysts use the FTSE MIB to gauge market trends and economic health in Italy. The index includes well-known companies such as Enel, Fiat Chrysler, and UniCredit, making it a key indicator for both domestic and international investors interested in the Italian market.