The ETF invests in equity securities of U.S. companies in order to replicate the S&P Composite 1500 ESG Tilted Index. The index is a broad-based, ESG-tilted index that is designed to measure the performance of companies in the S&P Composite 1500 Index (the ?broader index?) meeting certain environmental, social and governance (ESG) criteria and over- or under-weights companies based on their S&P DJI ESG Scores, while maintaining similar overall industry weights as the broader index.