Parametric Commodity Strategy Fund (Parametric Commodity Strategy F) fond

The fund invests primarily in commodity-linked derivative instruments backed by a portfolio of fixed-income securities. The fund's portfolio of fixed-income securities is generally comprised of U.S. Treasury securities and money market instruments. The average portfolio duration of the fund's fixed-income portfolio will vary and under normal market conditions is not expected to exceed one year. Commodity-linked derivative instruments include commodity index-linked swap agreements, futures, and commodity linked notes.