Fidelity Merrimack Street Trust Fidelity Sustainable Low Duration Bond ETF ETF

The fund normally invests at least 80% of assets in investment-grade debt securities (those of medium and high quality) of all types that the Adviser believes have positive environmental, social and governance (ESG) benefits and repurchase agreements for those securities. The advisor normally maintains a dollar-weighted average maturity of two years or less. The fund allocates assets across different market sectors and maturities.