Stock and bond markets may have struggled in 2018, but sustainable funds in the United States had a good year. They grew in number and size. They attracted record net flows. They turned in strong relative performance. Sustainable exchange-traded funds, in particular, experienced significant growth. But investors shouldn't be too quick to paint them all with the same brush because, as the group has expanded, some clear distinctions can be made between several types of sustainable funds. Those are among my conclusions in this year's report on sustainable funds in the U.S.
Here are five takeaways from the report: