
Sustainability-oriented investors should expect to find some unexpected holdings in their portfolio when they choose products with a swap-based (synthetic) index replication approach. While index products with a full replication approach hold normally only the constituents of their respective index, the portfolio of a synthetic product is built with a swap that replicates the risk/return profile of the respective index and the so-called collateral. The securities held as collateral are often chosen based on their liquidity and transaction costs, as this helps to minimize the costs of managing the product. If the securities for the collateral are not chosen with