Strategy. The Fund is a fund of funds and invests its assets in some combination of underlying mutual funds, exchange-traded funds or other pooled investment vehicles (collectively, the underlying funds), which are advised by Invesco Advisers, Inc. (Invesco or the Adviser), Invesco Capital Management LLC (Invesco Capital) or other unaffiliated advisers and are either actively or passively managed. Invesco and Invesco Capital are affiliates of each other as they are both indirect wholly-owned subsidiaries of Invesco Ltd. The Fund is designed for investors who expect to retire in 2025 and/or begin to withdraw their retirement assets around 2025. The Fund follows a glide path that adjusts the combination of underlying funds to generally become more conservative over time, until the Fund … Show more… The Fund is a fund of funds and invests its assets in some combination of underlying mutual funds, exchange-traded funds or other pooled investment vehicles (collectively, the underlying funds), which are advised by Invesco Advisers, Inc. (Invesco or the Adviser), Invesco Capital Management LLC (Invesco Capital) or other unaffiliated advisers and are either actively or passively managed. Invesco and Invesco Capital are affiliates of each other as they are both indirect wholly-owned subsidiaries of Invesco Ltd. The Fund is designed for investors who expect to retire in 2025 and/or begin to withdraw their retirement assets around 2025. The Fund follows a glide path that adjusts the combination of underlying funds to generally become more conservative over time, until the Fund reaches its destination point, which is approximately 15 years after the target retirement date stated in the Fund's name (approximately 2040 for the Fund). The Fund is designed to provide exposure to a number of asset classes through investments in the underlying funds and the Funds allocation will evolve over time. The underlying funds provide exposure to the following asset classes: U.S. equity; international equity; fixed income; alternatives; and cash. The equity underlying funds are diversified across a wide range of market capitalizations and segments, including emerging markets (i.e., those that are generally in the early stages of their industrial cycles), and employ various investment strategies and styles such as growth, value, and managed or lower volatility. The fixed income underlying funds encompass a wide range of fixed income sectors, including U.S. Government obligations, corporate investment grade and below investment grade bonds (commonly known as junk bonds), mortgage- and asset-backed securities, inflation-protected bonds, foreign debt, floating rate loans (also known as bank loans), and municipal securities. The alternatives underlying funds may include those that provide exposure to commodities, master limited partnerships, real estate, subsidiaries, and other non-traditional investments, and those that employ multi-asset, long-short, market neutral or other tactical investment strategies. The Funds investment in underlying funds is subject to any limitations imposed by the Investment Company Act of 1940, as amended (1940 Act). The Fund may invest directly in derivatives to equitize cash, hedge currency exposure and manage the duration of the Funds portfolio, including but not limited to futures, total return swaps, and currency forward contracts. The Fund may also use other types of derivatives through its investments in underlying funds. The Fund is designed for investors expecting to retire and/or begin withdrawing funds around the target retirement date stated in its name. The Fund follows a glide path that adjusts the combination of underlying funds to become more conservative as the Fund approaches its target retirement date and thereafter. Specifically, the Fund is designed to provide higher equity exposure further out from its target retirement date; the higher equity exposure will decrease as exposure to fixed income, alternatives and cash increases closer to the target retirement date. As of the date of this prospectus, the long-term glide path of the Fund and each of the other funds in the Invesco Peak Retirement Series is set forth in the table below. This Funds particular glide path is indicated by the retirement date in the Funds name. The table reflects the target asset class exposures that investment in the underlying funds provide to the Fund and each of the other Funds in the Invesco Peak Retirement Series. The Adviser may make tactical adjustments to the target asset class exposures but does not expect the Funds allocation to the target asset class exposures to vary by more than +/-15%; however, the Adviser may determine that a greater degree of variation is warranted to protect the Fund or achieve its investment objective. The actual asset class exposures for the Fund may differ from those shown in the chart below due to market fluctuations, cash flows and other factors. ? The Adviser will continue to manage the Fund for approximately 15 years after the Fund reaches its target retirement date and the Fund will not reach its lowest strategic target allocation to equities until 15 years past the Funds target retirement date. The Fund, which has the target retirement date defined by its name, may be combined with other funds into the Invesco Peak Retirement Destination Fund (Retirement Destination Fund), in approximately 15 years after its target retirement date (approximately 2040 for the Fund). The Retirement Destination Fund does not have an investment allocation that evolves beyond the allocation in effect at that point in time. If the Fund is combined into the Retirement Destination Fund in approximately 2040, the Fund will cease to exist as a standalone fund and you will receive an equivalent amount of shares of the Retirement Destination Fund. The Board of Trustees of the Fund may effect this combination without a shareholder vote if they make certain determinations including that it is in the best interests of Fund shareholders. The Adviser uses a three-step process to create the Funds portfolio including: (1) a strategic asset allocation by the Adviser among broad asset classes; (2) the actual selection by the Adviser of underlying funds to represent the broad asset classes and the determination by the Adviser of target weightings in these underlying funds; in the case where there are multiple funds in a broad asset class, the Adviser attempts to balance the amount of active risk contributed by each underlying fund in order to determine the allocation; and (3) the ongoing monitoring of the Funds asset class allocations, underlying funds and target weightings in the underlying funds. Based on the portfolio managers research, the Funds strategic asset allocations are broadly diversified to gain exposure to areas of the market that the portfolio managers believe may perform well over a full market cycle, including periods of adverse economic environments such as recessions and inflationary growth. The portfolio managers gain exposure to the desired asset class by selecting what they believe to be the most representative underlying funds. The Adviser rebalances the Funds investments in the underlying funds periodically to keep them at their target weightings. The Adviser may change the Funds asset class allocations, the underlying funds or the target weightings in the underlying funds without shareholder approval or notice to shareholders. A list of the underlying funds and their weightings at the end of the most recently completed fiscal year is located in the Funds annual report. An investment in the Fund is not guaranteed, and you may experience losses, including near to, at, or after the target date. There is no guarantee that the Fund will provide adequate income at or through your retirement. Show less