FBCG is part of Fidelitys first non-transparent ETFs which discloses holdings only on a monthly basis with a 30-day lag. The fund actively selects global large-caps and midcaps that the fund adviser believes have above-average growth potential based on their fundamental. These holdings are represented in the Tracking Basket as a proxy portfolio published on its website daily which correlates to the funds holdings, and disclose its weight overlap which represents return deviation relative to the actual fund. Although its not the actual portfolio, the basket contains some of the funds recently disclosed holdings, other liquid ETFs, and cash-like instruments. This basket is formed using the funds own optimization process to enable arbitrage opportunities and minimize return deviation between the basket and the actual fund. Still investors should take into account greater price disparity during volatile markets due to its non-transparent nature.