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Prospectus - Mar 31, 2012

An investor should consider each ETF's investment objectives, risks, charges and expenses of the ETFs carefully before investing. Click the link to obtain a prospectus which contain this and other information, or call 877.526.9298. Read the prospectus carefully before investing.

Investors should consider the following risk factors and special considerations associated with investing in the Jefferies | TR/J CRB Global Commodity Equity Index Fund ("CRBQ"), which may cause you to lose money. CRBQ is considered non-diversified and can invest a greater portion of assets in securities of individual issuers than a diversified ETF. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a diversified ETF. A principal risk of investing in CRBQ is equity risk, which is the risk that the value of the securities held by CRBQ will fall due to general market and economic conditions, perceptions regarding the industries in which the issuers of securities held by CRBQ participate or factors relating to specific companies in which the ETFs invest. CRBQ investments in non-U.S. issuers involve unique risks compared to investing in securities of U.S. issuers, including, among others, greater market volatility than U.S. securities and less complete financial information than for U.S. issuers. In addition, adverse political, economic or social developments could undermine the value of CRBQ investments or prevent the ETFs from realizing the full value of its investments. The CRB-EQ Index measures the performance of equity securities of companies engaged in the production and distribution of commodities and commodity-related products. The CRB-EQ Index does not measure the performance of direct investment in the underlying commodities and, therefore, may not move in the same direction and to the same extent as the underlying commodities. See the section "Additional Risks" in the prospectus fors additional risk factors.

ALPS Advisors, Inc. is the investment adviser to the Fund.

The Index Provider is not affiliated with the Trust, the Investment Adviser or the Distributor. The Investment Adviser has entered into a license agreement with the Index Provider to use each ETF's underlying index.

The Index Provider is the designer of the construction and methodology for each underlying index and owns the service mark or trademark "In-the-Ground." "Thomson," "Thomson Reuters," "Reuters" and "CRB" are service marks or trademarks of Reuters America LLC, a Thomson Reuters company, or its affiliates ("Thomson Reuters"). "Jefferies" is a service mark or trademark of Jefferies Financial Products, LLC or its affiliates ("Jefferies"). Neither Thomson Reuters nor Jefferies is responsible for the descriptions of the underlying indices or ETFs that appear herein. Thomson Reuters and Jefferies are not affiliated with the Index Provider, the Trust, the Investment Adviser or the Distributor.

Shares are not individually redeemable and owners of the Shares may acquire those shares from the ETF and tender those shares for redemption to the ETF in Creation Units only, typically consisting of aggregations of 50,000 shares.

†The Fund's Advisory Agreement provides that the Investment Adviser will pay all expenses of the Fund, except for interest expenses, distribution fees or expenses, brokerage expenses, taxes and extraordinary expenses such as litigation and other expenses not incurred in the ordinary course of the Fund's business.

ALPS Distributors, Inc. is the Distributor of the ETFs.

All quotes delayed by 20 minutes. Delayed quotes provided by Bloomberg. Historical prices and fundamental data provided by Bloomberg, The Bank of New York Mellon and ALPS Distributors, Inc. Change reflects change from previous day closing price.

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