INVESCO VAN KAMPEN Energy Portfolio, Series 38

A sector unit trust Portfolio composition As of day of deposit Objective Coal & consumable fuels The portfolio seeks to provide capital appreciation Peabody Energy Corporation BTU Company HAL and dividend income. The portfolio seeks to Integrated oil & gas National Oilwell Varco, Inc. NOV achieve its objective by investing in stocks of CVX , Ltd. SLB energy companies. ConocoPhillips COP Oil & gas exploration & production Exxon Mobil Corporation XOM Apache Corporation APA Trust specifics Corporation MRO Cabot Oil & Gas Corporation COG Deposit information Murphy Oil Corporation MUR CNOOC, Ltd. — ADR CEO Public offering price per unit1 $10.00 Occidental Corporation OXY Corporation DVN Minimum investment ($250 for IRAs)2 $1,000.00 plc — ADR RDS/A EOG Resources, Inc. EOG Deposit date 05/10/11 Statoil ASA — ADR STO Newfield Exploration Company NFX Termination date 05/14/13 , Inc. SU Plains Exploration & Production Company PXP Distribution date 09/25/11, 12/25/11, 03/25/12, TOTAL S.A. — ADR TOT Southwestern Energy Company SWN 06/25/12, 09/25/12, 12/25/12 Oil & gas drilling Oil & gas refining & marketing 03/25/13 and final Nabors Industries, Ltd. NBR Sunoco, Inc. SUN Record date 09/10/11, 12/10/11, 03/10/12, Noble Corporation NE Oil & gas storage & transportation 06/10/12, 09/10/12, 12/10/12 Oil & gas equipment & services El Paso Corporation EP 03/10/13 and final , Inc. BHI Williams Companies, Inc. WMB Term of trust 24 months Corporation CAM NASDAQ symbol VKEYEX Estimated net annual income per unit† $0.13 The trust portfolio is provided for informational purposes only and should not be deemed as a recommendation to buy or sell the Daily liquidity3 individual securities shown above. Invesco Van Kampen unit investment trusts are distributed by the sponsor, Van Kampen Funds Inc., and broker dealers including Invesco Distributors, Inc. Both firms are wholly owned, indirect subsidiaries of Invesco Ltd. Sales charge4 Initial sales charge 1.00% Deferred sales charge 2.45 Portfolio diversification Morningstar Equity Style BoxTM As of the business day before deposit date Creation and development fee 0.50 VALUE BLEND GROWTH Maximum sales charge 3.95 Coal & consumable fuels 2.48% Last deferred sales charge payment date 02/10/12 Integrated oil & gas 51.59% LARGE ENGY38 CUSIPs Oil & gas drilling 4.02% Cash 92121M-64-9 Oil & gas equipment & MID Reinvest 92121M-65-6 services 16.96% Wrap fee cash 92121M-66-4 Oil & gas exploration &

Wrap fee reinvest 92121M-67-2 production 19.96% SMALL & & Investors in fee-based accounts will not be assessed the Oil gas refining initial and deferred sales charge on eligible fee-based marketing 2.00% purchases and must purchase units with a Wrap Fee CUSIP. Oil & gas storage & transportation 2.99% Breakpoint information* Transaction amounts Less than $50,000 3.95% $50,000–$99,999 3.70 $100,000–$249,999 3.45 $250,000–$499,999 3.10 $500,000–$999,999 2.95 $1,000,000 or more 2.45 Rollover or exchange 2.95 Wrap fee 0.50

*Please consult the prospectus for details on all discounts. 1 Including sales charges. As of deposit date. 2 Represents the value of 100 units on the deposit date. The value of the minimum investment amount of 100 units may be greater or less than $1,000.00 following the deposit date. 3 Funds will typically be mailed within three business days after your redemption request is received. Please contact your Financial Advisor for more information. For unit trust pricing 4 Assuming a public offering price of $10 per unit. please visit invesco.com/unittrust.

NOT FDIC INSURED MAY LOSE VALUE NO BANK GUARANTEE Invesco 11 Greenway Plaza, Suite 2500 , TX 77046-1188, www.invesco.com Why consider investing in Invesco's Energy Portfolio? With Invesco you gain access to professional security selection. Our experienced investment professionals carefully select among today’s most compelling investment opportunities in the global energy sector. • The portfolio includes companies representing a wide range of energy activities including exploration and production, refining and marketing, and equipment and services. • Some of the world’s leading energy companies are located outside the . Although investing in foreign securities entails special risks, this portfolio includes international investments. Professional selection The companies included in the portfolio were selected for a variety of reasons, including industry position, growth potential and valuation. The portfolio was constructed to provide diversification among regions, market capitalizations and subindustries within the energy sector.

Before investing, investors should carefully read the prospectus and consider the investment objectives, risks, charges and expenses. For this and more complete information about the trust, investors should ask their advisers for a prospectus or download one at invesco.com/unittrust. Risk considerations There is no assurance the trust will achieve its investment objective. An investment in this unit investment trust is subject to market risk, which is the possibility that the market values of securities owned by the trust will decline and that the value of trust units may therefore be less than what you paid for them. This trust is unmanaged and its portfolio is not intended to change during the trust’s life except in limited circumstances. Accordingly, you can lose money investing in this trust. A portfolio concentrated in a single market sector presents more risk than a portfolio broadly diversified over several market sectors. This trust is concentrated in the energy sector. There are certain risks specific to the energy sector, including the potential adverse effect of state and federal regulation and increasing costs of natural resources. Investing in foreign securities involves certain risks not typically associated with investing solely in the United States. This may magnify volatility due to changes in foreign exchange rates, the political and economic uncertainties in foreign countries, and the potential lack of liquidity, government supervision and regulation. Common stocks do not assure dividend payments. Dividends are paid only when declared by an issuer’s board of directors and the amount of any dividend may vary over time.

†The Estimated Net Annual income per unit listed on the front page is as of 05/09/11 and is based on the most recently declared quarterly dividends, interim and final dividends accounting for any foreign withholding taxes or scheduled income payments, but may also be based upon several recently declared dividends. The actual net annual income distributions you receive will vary from the estimate set forth above with changes in the trust's fees and expenses, in income received, currency fluctuations and with the call, maturity or sale of securities. The actual net annual distributions are expected to decrease over time because a portion of the securities included in the trust will be sold to pay for organization costs, deferred sales charges and the creation and development fee. Securities may also be sold to pay regular fees and expenses during the trust's life. Morningstar Datalab is the source for the style box that appears on the reverse side of this page. The Morningstar Equity Style Box™ is based on holdings as of the date of deposit of the trust and may vary thereafter. The Morningstar Equity Style Box™ placement is based on two variables. First, on a trust’s market capitalization relative to the movements of the market and second, the valuation by comparing the stocks in the trust’s portfolio with the most relevant of the three market capitalization groups. Source: Morningstar, Inc., Chicago, IL 312-696-6000. © 2011 Morningstar, Inc. All Rights Reserved. The information contained herein: (1) is proprietary to Morningstar and/or its content providers; (2) may not be copied or distributed; and (3) is not warranted to be accurate, complete or timely. Neither Morningstar nor its content providers are responsible for any damages or losses arising from any use of this information. Past performance is no guarantee of future results. Value, blend and growth are types of investment styles. Growth investing generally seeks stocks that offer the potential for greater-than-average earnings growth, and may entail greater risk than value or blend investing. Value investing generally seeks stocks that may be sound investments but are temporarily out of favor in the marketplace, and may entail less risk than growth investing. A blend investment combines the two styles.

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