The Eaton Vance Short Duration Municipal Income ETF (EVSM) operates under an active management strategy, focusing primarily on municipal debt instruments that offer federal tax exemptions. While its typical allocation is to investment-grade municipal obligations, the fund's objective is to maintain a dollar-weighted average portfolio duration of less than three years. However, this does not preclude the inclusion of individual securities with any maturity length. The investment adviser's primary criteria for selecting securities include evaluating the credit quality of the issuer and assessing the bond's value proposition within the market. Furthermore, Environmental, Social, and Governance (ESG) considerations are incorporated into the decision-making process. Due to its active management approach, EVSM holds the flexibility to occasionally invest a portion of its assets in bonds that are subject to regular federal income tax, as well as in higher-yielding, non-investment grade (junk) bonds.