The Morningstar Sustainability Rating for funds uses company ESG ratings from Sustainalytics to assess how well the holdings in a portfolio are managing the ESG issues most relevant and material to their businesses. The Portfolio Sustainability Score is an asset-weighted roll-up of company ESG scores with deductions made for company involvement in ESG-related controversies. A fund's Sustainability Rating reflects its Sustainability Score relative to its Morningstar Category peers. My universe was funds in the U.S. large-value, large-blend, and large-growth Morningstar Categories that have Morningstar Sustainability Ratings. I chose these categories because most of their funds have ratings and the categories are reasonably homogeneous in terms of their investment style and other exposures. They also comprise the largest allocations in the equity portfolios of most U.S. investors.