Strategy. The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in convertible securities, and in derivatives and other instruments that have economic characteristics similar to such securities. A convertible security is a bond, preferred stock or other security that may be converted into a prescribed amount of common stock at a prestated price. The Fund may invest in below-investment grade securities. Below-investment grade securities are commonly referred to as junk bonds. Investment grade securities are: (i) securities rated BBB- or higher by S&P Global Ratings (S&P) or Baa3 or higher by Moodys Investors Service, Inc. (Moodys) or an equivalent rating by another nationally recognized statistical rating organization (NRSRO), (ii) securities with … Show more… The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in convertible securities, and in derivatives and other instruments that have economic characteristics similar to such securities. A convertible security is a bond, preferred stock or other security that may be converted into a prescribed amount of common stock at a prestated price. The Fund may invest in below-investment grade securities. Below-investment grade securities are commonly referred to as junk bonds. Investment grade securities are: (i) securities rated BBB- or higher by S&P Global Ratings (S&P) or Baa3 or higher by Moodys Investors Service, Inc. (Moodys) or an equivalent rating by another nationally recognized statistical rating organization (NRSRO), (ii) securities with comparable short-term NRSRO ratings, or (iii) unrated securities determined by Invesco Advisers, Inc. (Invesco or the Adviser) to be of comparable quality, each at the time of purchase. Many convertible securities have credit ratings that are below investment grade. The Fund may invest up to 10% of its net assets in synthetic convertible securities and up to 25% of its net assets in exchangeable convertible securities. The Fund may invest up to 20% of its net assets in common stocks, non-convertible preferred stocks and non-convertible fixed-income securities. The Fund may invest up to 20% of its net assets in foreign securities, including securities of issuers located in emerging markets countries (i.e., those that are generally in the early stages of their industrial cycles), non-U.S. dollar denominated securities and depositary receipts. This percentage limitation, however, does not apply to securities of foreign companies that are listed in the United States on a national securities exchange. The Fund may invest in illiquid or thinly traded securities. The Fund may also invest in securities that are subject to resale restrictions such as those contained in Rule 144A promulgated under the Securities Act of 1933, as amended. The Fund can invest in derivative instruments including forward foreign currency contracts. The Fund can use forward foreign currency contracts to seek to hedge against adverse movements in the foreign currencies in which portfolio securities are denominated; though the Fund has not historically used these instruments. The Fund focuses on investing in traditional convertible securities that offer a balanced risk reward profile over a full market cycle. The Fund invests in traditional convertible securities with reasonable valuations that the portfolio managers believe show potential for strong total return through interest or dividend, coupled with the upside participation found in the option value embedded in the securities. The portfolio managers focus on positions issued by well-managed companies with strong balance sheets, a clear business focus, and competitive advantages versus their peers as determined by the portfolio managers. Alpha (return on investments in excess of the ICE BofA U.S. Convertible Index) is also sought to be added to the portfolio through careful credit analysis and security selection. The portfolio managers seek to construct a broadly diversified portfolio that is focused on balanced convertible exposures, which they believe offer the most attractive risk/reward profile. The portfolio managers may increase or decrease the Fund's delta, or equity sensitivity of the portfolio, based on underlying economic conditions. For instance, in a strong equity market, the team may hold a higher level of equity-like convertible securities to allow the Fund to participate in the additional upside. Equity-like convertible securities exhibit characteristics such as greater equity sensitivity and lower conversion premiums. Conversely, in a weak equity market, the team may seek to reduce exposure to equity-like convertible securities, investing more in fixed-income-oriented securities. The team may also use equity options and traditional fixed-income securities to help the fund maintain proper positioning in different economic environments. Decisions to purchase or sell securities are determined by the relative value considerations of the portfolio managers, which factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities. Show less