Fidelity Merrimack Street Trust Fidelity Sustainable Core Plus Bond ETF ETF

The fund normally invests at least 80% of assets in debt securities of all types that the Adviser believes have positive environmental, social and governance (ESG) benefits and repurchase agreements for those securities. It invests up to 20% of assets in lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds). The fund invests in domestic and foreign issuers.