FIDU is one of the US sector funds, tracking MSCI indexes, launched by Fidelity in October 2013. It provides comprehensive plain-vanilla exposure to the broad industrials sector through a relatively liquid and efficient portfolio. Prior to December 1, 2020, the fund tracked the MSCI USA IMI Industrials Index, an uncapped version of the present index. To meet diversification requirements, FIDU now uses a 25/50 capping methodology. Notably, instead of replicating the underlying index, the fund uses a representative sampling strategy. The index is rebalanced quarterly.