The Invesco Preferred ETF (PGX) aims to replicate the performance of the ICE BofAML Core Plus Fixed Rate Preferred Securities Index. To achieve this, the Fund typically allocates a minimum of 80% of its total assets to fixed-rate, US dollar-denominated preferred securities that are components of this underlying index. The Index itself comprises fixed-rate, US dollar-denominated preferred securities issued within the domestic U.S. market.