FENY is part of a fund suite that marked Fidelity's official entry into the US sector ETF market. The fund offers a top-heavy portfolio in the US energy segment, with well over half of its portfolio weight in its top ten holdings, and a huge chunk of its allocation to the top few. Overall, its portfolio is broad, with allocations to every aspect of the oil and gas industries, and some allocations dedicated to coal and renewables. On December 1, 2020, FENY started tracking a capped version of its previous index, where the aggregate weight of issuers with over 5% weight in the index are now capped at 50% of the funds total asset. The fund uses a sampling strategy to track the index, which means the fund may not hold all the securities in the underlying index, but securities that provide a similar investment profile. The index is rebalanced quarterly
