XYLE pursues two investment objectives in one ticker, positive ESG and income generation. The fund tracks an index that starts by screening out components of S&P 500 Index based on three different types of ESG categories: business activities, non-compliance with United Nations Global Compact Compliance, and media/stakeholder controversies. Companies that do not have an S&P DJI ESG score and those that score in the bottom 25% of their industry group are also excluded. The remaining companies are then ranked by their ESG score within each industry group. Constituent selection targets the top 75% from each industry group. Ongoing eligibility to remain in the index is evaluated on a quarterly basis. The index also sells one-month, at-the-money call options in proportion to their weight against the funds reference index. The strategy aids in generating additional income via options premium but places a drag on the appreciation potential. The index is rebalanced annually in April.