Strategy. The Fund will invest at least 80% of its net assets (plus any borrowings for investment purposes) in fixed income securities and in exchange-traded funds (ETFs) and closed-end funds that invest substantially all of their assets in fixed income securities. The Fund uses a low duration strategy to seek to outperform the ICE BofA US Treasury Bill Index (the Benchmark) in addition to providing returns in excess of those available in U.S. Treasury bills, government repurchase agreements, and money market funds, while seeking to provide preservation of capital and daily liquidity. The Fund is not a money market fund and does not seek to maintain a stable net asset value (NAV) of $1.00 per Share. The Fund expects, under normal … Show more… The Fund will invest at least 80% of its net assets (plus any borrowings for investment purposes) in fixed income securities and in exchange-traded funds (ETFs) and closed-end funds that invest substantially all of their assets in fixed income securities. The Fund uses a low duration strategy to seek to outperform the ICE BofA US Treasury Bill Index (the Benchmark) in addition to providing returns in excess of those available in U.S. Treasury bills, government repurchase agreements, and money market funds, while seeking to provide preservation of capital and daily liquidity. The Fund is not a money market fund and does not seek to maintain a stable net asset value (NAV) of $1.00 per Share. The Fund expects, under normal circumstances, to hold a diversified portfolio of fixed income instruments of varying maturities, but that have an average duration of less than one year. Duration is a measure of the price volatility of a debt instrument as a result of changes in interest rates, based on the weighted average timing of the instruments expected principal and interest payments. Duration differs from maturity in that it considers, among other characteristics, an instruments yield, coupon payments, principal payments and call features in addition to the amount of time until the instrument matures. As the value of an instrument changes over time, so will its duration. The Fund may invest, without limitation, in short-term instruments such as commercial paper and/or repurchase agreements. Commercial paper includes variable amount master demand notes and asset-backed commercial paper. Commercial paper normally represents short-term unsecured promissory notes issued by banks or bank holding companies, corporations, finance companies and other issuers. Repurchase agreements are fixed-income securities in the form of agreements backed by collateral. These agreements, which may be viewed as a type of secured lending by the Fund, typically involve the acquisition by the Fund of securities from the selling institution (such as a bank or a broker-dealer), coupled with the agreement that the selling institution will repurchase the underlying securities at a specified price and at a fixed time in the future (or on demand). The Fund may accept a wide variety of underlying securities as collateral for the repurchase agreements entered into by the Fund. Such collateral may include U.S. government securities, corporate obligations, equity securities, municipal debt securities, mortgage-backed securities and convertible securities. Any such securities serving as collateral are marked-to-market daily in order to maintain full collateralization (typically purchase price plus accrued interest). The Fund primarily invests in U.S. dollar-denominated investment grade debt securities, including U.S. Treasury securities and corporate bonds, rated Baa3 or higher by Moodys Ratings (Moodys), or equivalently rated by S&P Global Ratings, a division of S&P Global Inc. (S&P), Fitch Ratings Inc. (Fitch), or any other nationally recognized statistical rating organization (NRSRO), or, if unrated, determined by Invesco Advisers, Inc. (the Sub-Adviser) to be of comparable quality. At least 80% of issues of corporate bonds or corporate debt held by the Fund must have $200 million or more par amount outstanding. The Fund may invest no more than 10% of its assets in high yield securities (which also may be known as junk bonds), which are debt securities that are rated below investment grade by NRSROs, or are unrated securities that the Sub-Adviser believes are of comparable quality. The Fund may invest more than 25% of its assets in the financial services sector. The Fund may invest in securities that are offered pursuant to Rule 144A (Rule 144A) under the Securities Act of 1933, as amended (Securities Act). Rule 144A securities are securities which, while privately placed, are eligible for purchase and resale pursuant to Rule 144A. This rule permits certain qualified institutional buyers, such as the Fund, to trade in privately placed securities even though such securities are not registered under the Securities Act. The Sub-Adviser will evaluate the liquidity of Rule 144A securities prior to investing in such securities and monitor their liquidity thereafter. The Fund will not invest in securities that are in default at the time of investment. If a security defaults subsequent to purchase by the Fund, the Sub-Adviser will determine in its discretion whether to hold or dispose of such security. The Fund may invest in bank obligations, which include certificates of deposit, commercial paper, unsecured bank promissory notes, bankers acceptances, time deposits and other debt obligations. The Fund may invest in obligations issued or backed by U.S. banks when a bank has more than $1 billion in total assets at the time of purchase or is a branch or subsidiary of such a bank. In addition, the Fund may invest in U.S. dollar-denominated obligations issued or guaranteed by foreign banks that have more than $1 billion in total assets at the time of purchase, U.S. branches of such foreign banks (Yankee obligations), foreign branches of such foreign banks and foreign branches of U.S. banks having more than $1 billion in total assets at the time of purchase. Bank obligations may be general obligations of the parent bank or may be limited to the issuing branch by the terms of the specific obligation or by U.S. government regulation. The Fund may invest, without limitation, in U.S. dollar-denominated debt securities of foreign issuers, including issuers located in emerging market countries, i.e., those that are generally in the early stages of their industrial cycles. The Fund may also invest up to 20% of its assets in sovereign and corporate debt securities denominated in foreign currencies. The Fund may invest in U.S. and non-U.S. dollar denominated bonds of supranational organizations. The Sub-Adviser may attempt to reduce foreign currency exchange rate risk by entering into contracts with banks, brokers or dealers to purchase or sell securities or foreign currencies at a future date (forward contracts). The Fund may also invest up to 25% of its assets in municipal securities. The Fund can invest in derivative instruments, including futures contracts and swap contracts. The Fund can use futures contracts, including Treasury and interest rate futures, to increase or reduce its exposure to interest rate changes. The Fund can use swap contracts, including interest rate swaps, to hedge or adjust its exposure to interest rates. The Fund can also use swap contracts, including credit default swaps, to create long or short exposure to corporate or sovereign debt securities. The Fund currently may invest up to 33% of its assets in mortgage-backed securities (MBS) or in other asset-backed securities (ABS). This limitation does not apply to securities issued or guaranteed by federal agencies and/or U.S. government sponsored instrumentalities, such as the Government National Mortgage Administration (GNMA), the Federal Housing Administration (FHA), the Federal National Mortgage Association (Fannie Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac). In addition to securities issued or guaranteed by such agencies or instrumentalities, the Fund may invest in MBS or other ABS issued or guaranteed by private issuers. The MBS in which the Fund may invest may also include residential mortgage-backed securities (RMBS), collateralized mortgage obligations (CMOs) and commercial mortgage-backed securities (CMBS). The ABS in which the Fund may invest include collateralized debt obligations (CDOs). CDOs include collateralized bond obligations (CBOs), collateralized loan obligations (CLOs) and other similarly structured securities. A CBO is a trust which is backed by a diversified pool of high risk, below investment grade fixed income securities. A CLO is a trust typically collateralized by a pool of loans, which may include domestic and foreign senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans. The Fund may obtain exposure to the securities in which it normally invests by engaging in various investment techniques, including forward purchase agreements, mortgage dollar rolls and TBA mortgage trading. A mortgage dollar roll involves the sale of a MBS by the Fund and its agreement to repurchase the instrument (or one which is substantially similar) at a specified time and price. Most transactions in fixed-rate mortgage pass-through securities occur through standardized contracts for future delivery in which the exact mortgage pools to be delivered are not specified until a few days prior to settlement (a TBA transaction). The Fund may enter into such contracts on a regular basis. The Fund, pending settlement of such contracts, will invest its assets in high-quality, liquid short-term instruments, including shares of money market funds. The Fund will assume its pro rata share of the fees and expenses of any money market fund (or other investment company) that it may invest in, in addition to the Funds own fees and expenses. The Fund may also acquire interests in mortgage pools through means other than such standardized contracts for future delivery. Show less