iShares MSCI KLD 400 Social ETF (NYSEARCA:DSI) has a rich history of nearly 17 years. The fund tracks the MSCI KLD 400 Social Index, which screens the broad market Russell 1000 index based on ESG criteria. It tilts toward companies with positive ESG characteristics related to the environment, human rights, labor standards, diversity, and community relations. The ETF's top 10 holdings represent 35.4% of its portfolio. iShares MSCI KLD 400 Social ETF's (NYSEARCA:DSI) expense ratio of 0.25% is on the low end for socially responsible investment (SRI) funds.