Fidelity Merrimack Street Trust Fidelity Tactical Bond ETF ETF

The fund invests at least 80% of assets in debt securities of all types and repurchase agreements for those securities. The advisor allocates assets across the full spectrum of the debt market, including investment-grade, high yield and emerging markets debt securities across different maturities. The fund invests in both U.S. dollar-denominated and non-U.S. dollar-denominated securities, and generally hedging the fund's foreign currency exposures utilizing forward foreign currency exchange contracts.