Strategy. The Fund is an actively-managed exchange-traded fund (ETF) that seeks total return consisting of current income and capital appreciation. Aegon USA Investment Management, LLC (Aegon), an investment sub-adviser to the Fund, invests, under normal circumstances, at least 80% of the Funds net assets (plus the amount of borrowings, if any, for investment purposes) in a portfolio of bonds and/or derivative instruments having economic characteristics similar to bonds. For purposes of this 80% policy, bonds includes dollar rolls, U.S. government and foreign government bonds and notes (including emerging markets), agency and non-agency mortgage-backed, commercial mortgage-backed, and asset-backed securities (including collateralized mortgage obligations), corporate bonds of issuers in the U.S. and foreign countries (including emerging markets), convertible bonds and other convertible securities, … Show more… The Fund is an actively-managed exchange-traded fund (ETF) that seeks total return consisting of current income and capital appreciation. Aegon USA Investment Management, LLC (Aegon), an investment sub-adviser to the Fund, invests, under normal circumstances, at least 80% of the Funds net assets (plus the amount of borrowings, if any, for investment purposes) in a portfolio of bonds and/or derivative instruments having economic characteristics similar to bonds. For purposes of this 80% policy, bonds includes dollar rolls, U.S. government and foreign government bonds and notes (including emerging markets), agency and non-agency mortgage-backed, commercial mortgage-backed, and asset-backed securities (including collateralized mortgage obligations), corporate bonds of issuers in the U.S. and foreign countries (including emerging markets), convertible bonds and other convertible securities, bank loans and loan participations, structured notes, and preferred securities. The Fund normally invests primarily in: (a) debt securities rated investment grade or higher (rated at least BBB by Standard & Poors or Fitch or Baa by Moodys) by at least two rating agencies or, if unrated, that are determined to be of comparable quality by Aegon; (b) securities issued or guaranteed by the U.S. government or its agencies or instrumentalities; (c) commercial paper rated Prime, Prime-1 or Prime-2 by NCO/Moodys Commercial Paper Division, or A-1 or A-2 by Standard & Poors; and/or (d) cash or cash equivalents. Up to 20% of the Funds net assets may be invested in debt securities that do not meet the investment grade criteria referred to above (commonly known as junk bonds). Junk bonds are high-risk debt securities rated below investment grade (that is, securities rated below BBB by Standard & Poors or Fitch or below Baa by Moodys or, if unrated, determined to be of comparable quality by Aegon). The Fund may invest in securities of any maturity and does not have a target average duration. Duration is a measure of a bonds price sensitivity to changes in interest rates, with a higher duration indicating a greater potential price drop when interest rates rise (or price increase when interest rates decline). For example, if a bond has a duration of 5 years, and interest rates increase by 1%, the bonds price would be expected to decline by approximately 5%. Conversely, if a bond has a duration of 5 years and interest rates fall by 1%, the bonds price would be expected to increase by approximately 5 %. Aegon uses a combination of a global top-down analysis of the macroeconomic and interest rate environments and global asset classes and proprietary bottom-up research of sectors, industries, issuers and individual securities. In Aegons top-down approach, Aegon analyzes various fundamental, technical, sentiment and valuation factors that affect the movement and relative value of markets and securities prices worldwide. In its proprietary bottom-up research of corporate and sovereign debt and other fixed-income securities, Aegon considers various fundamental and other factors, such as creditworthiness, capital structure, covenants, cash flows and, as applicable, collateral. Aegon uses this combined top-down and bottom-up approach to determine asset class, sector, security, yield curve and duration positions for the Fund. Independent, bottom-up research of issuers, securities and sectors is the foundation of the investment process and is performed by dedicated credit, emerging markets debt and securitized research teams within the firm. Top-down, macroeconomic views guide broader investment themes, influencing allocations to sectors, ratings categories, duration buckets and the overall risk profile of the Fund. Aegon research analysts also generally integrate environmental, social and governance (ESG) matters within their analytical process for foreign government bonds and notes (including emerging markets), private residential mortgage-backed securities, commercial mortgage-backed securities, certain asset-backed securities (including collateralized mortgage obligations), corporate bonds of issuers in the U.S. and foreign countries (including emerging markets), structured notes, certain preferred securities, certain cash equivalents (including corporate commercial paper) and privately issued debt securities issued pursuant to Rule 144A or Regulation S alongside traditional credit metrics as a risk management tool and as a method to identify financially material ESG factors and arrive at an independent, comprehensive view of the investment. Aegons research analysts typically do not consider ESG factors when analyzing other investments, including, but not limited to, investments in dollar rolls, U.S. government bonds and notes, U.S. agency securities, convertible bonds, other convertible securities, certain bank loans and loan participations, asset-backed commercial paper, cash, certain cash equivalent securities, equity securities, common stocks, rights, warrants, derivatives, repurchase agreements and money market instruments. Consideration of ESG matters is subjective and not determinative in Aegons investment process. Aegon may conclude that other attributes of an investment outweigh ESG considerations when making investment decisions. Aegons research analysts do not take ESG factors into consideration with respect to every investment in the Fund. The Fund may, but is not required to, engage in certain investment strategies involving derivatives, such as options, futures, forward currency contracts and swaps, including, but not limited to, interest rate, total return and credit default swaps. These investment strategies may be employed as a hedging technique, as a means of altering investment characteristics of the Fund (such as shortening or lengthening duration), in an attempt to enhance returns or for other purposes. The Fund may purchase securities on a when-issued, delayed delivery, to be announced or forward commitment basis. The Fund may invest in privately issued securities, including those that are normally purchased pursuant to Rule 144A or Regulation S promulgated under the Securities Act of 1933, as amended. The Fund may engage in active trading of its portfolio investments. Aegon considers emerging market countries as countries that major international financial institutions, such as the World Bank, generally consider to be less economically mature than developed nations. Show less