497

 RULE 497 DOCUMENT

On behalf of DWS Alternative Asset Allocation Fund, a series of DWS Market Trust (the “Fund”), and pursuant to Rule 497(e) under the Securities Act of 1933, as amended (the “Securities Act”), the purpose of this filing is to submit an interactive data file in the manner provided by Rule 405 of Regulation S-T and General Instruction C.3.(g) of Form N-1A.  The interactive data file included as an exhibit to this filing relates to thesupplement filed with the Securities and Exchange Commission on behalf of the Fund pursuant to Rule 497(e) under the Securities Act on January 31, 2013; such supplement (accession number 0000088053-13-000099) is incorporated by reference into this Rule 497 Document.

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SUPPLEMENT TO THE CURRENTLY EFFECTIVE PROSPECTUS

DWS Alternative Asset Allocation Fund

The following information replaces similar disclosure contained under the ”PRINCIPAL INVESTMENT STRATEGY” heading in the summary section of the fund’s prospectus.

Main Investments. The fund is a fund-of-funds, which means its assets are invested in a combination of other DWS funds (i.e., mutual funds, exchange-traded funds (ETFs) and other pooled investment vehicles managed by Deutsche Investment Management Americas Inc., the fund’s investment advisor, or one of its affiliates), certain other securities and derivative instruments (the use of derivatives by the fund and the underlying funds in which the fund invests is described below in Global Tactical Asset Allocation Strategy and Derivatives). The fund seeks to achieve its objective by investing in alternative (or non-traditional) asset categories and investment strategies. The fund may also invest in securities of unaffiliated ETFs or hedge funds when the desired economic exposure to a particular asset category or investment strategy is not available through a DWS fund (DWS funds, unaffiliated ETFs and hedge funds are collectively referred to as ”underlying funds”). The fund’s allocations among the underlying funds may vary over time.

The following information replaces similar disclosure contained under the “MAIN RISKS” heading in the summary section of the fund’s prospectus.

Subsidiary risk. Certain underlying funds may invest in a wholly–owned subsidiary of the underlying fund (the Subsidiary) that is not registered as an investment company under the Investment Company Act of 1940, as amended, and therefore it is not subject to all of the investor protections of the Investment Company Act of 1940. A regulatory change in the US or the Cayman Islands that impacts the Subsidiary or how the underlying fund invests in the Subsidiary, such as a change in tax law, could adversely affect the underlying fund and the fund. By investing in the Subsidiary, the underlying funds and the fund are exposed to the risks associated with the Subsidiary’s investments, which generally include the risks of investing in derivatives and commodities–related investments.

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Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

DWS MARKET TRUST

Prospectus Date

rr_ProspectusDate

Aug. 01, 2012

Supplement [Text Block]

dwsmt_SupplementTextBlock

SUPPLEMENT TO THE CURRENTLY EFFECTIVE PROSPECTUS

DWS Alternative Asset Allocation Fund

The following information replaces similar disclosure contained under the ”PRINCIPAL INVESTMENT STRATEGY” heading in the summary section of the fund’s prospectus.

Main Investments. The fund is a fund-of-funds, which means its assets are invested in a combination of other DWS funds (i.e., mutual funds, exchange-traded funds (ETFs) and other pooled investment vehicles managed by Deutsche Investment Management Americas Inc., the fund’s investment advisor, or one of its affiliates), certain other securities and derivative instruments (the use of derivatives by the fund and the underlying funds in which the fund invests is described below in Global Tactical Asset Allocation Strategy and Derivatives). The fund seeks to achieve its objective by investing in alternative (or non-traditional) asset categories and investment strategies. The fund may also invest in securities of unaffiliated ETFs or hedge funds when the desired economic exposure to a particular asset category or investment strategy is not available through a DWS fund (DWS funds, unaffiliated ETFs and hedge funds are collectively referred to as ”underlying funds”). The fund’s allocations among the underlying funds may vary over time.

The following information replaces similar disclosure contained under the “MAIN RISKS” heading in the summary section of the fund’s prospectus.

Subsidiary risk. Certain underlying funds may invest in a wholly–owned subsidiary of the underlying fund (the Subsidiary) that is not registered as an investment company under the Investment Company Act of 1940, as amended, and therefore it is not subject to all of the investor protections of the Investment Company Act of 1940. A regulatory change in the US or the Cayman Islands that impacts the Subsidiary or how the underlying fund invests in the Subsidiary, such as a change in tax law, could adversely affect the underlying fund and the fund. By investing in the Subsidiary, the underlying funds and the fund are exposed to the risks associated with the Subsidiary’s investments, which generally include the risks of investing in derivatives and commodities–related investments.

DWS Alternative Asset Allocation Fund

Risk/Return:

rr_RiskReturnAbstract

Supplement [Text Block]

dwsmt_SupplementTextBlock

SUPPLEMENT TO THE CURRENTLY EFFECTIVE PROSPECTUS

DWS Alternative Asset Allocation Fund

The following information replaces similar disclosure contained under the ”PRINCIPAL INVESTMENT STRATEGY” heading in the summary section of the fund’s prospectus.

Main Investments. The fund is a fund-of-funds, which means its assets are invested in a combination of other DWS funds (i.e., mutual funds, exchange-traded funds (ETFs) and other pooled investment vehicles managed by Deutsche Investment Management Americas Inc., the fund’s investment advisor, or one of its affiliates), certain other securities and derivative instruments (the use of derivatives by the fund and the underlying funds in which the fund invests is described below in Global Tactical Asset Allocation Strategy and Derivatives). The fund seeks to achieve its objective by investing in alternative (or non-traditional) asset categories and investment strategies. The fund may also invest in securities of unaffiliated ETFs or hedge funds when the desired economic exposure to a particular asset category or investment strategy is not available through a DWS fund (DWS funds, unaffiliated ETFs and hedge funds are collectively referred to as ”underlying funds”). The fund’s allocations among the underlying funds may vary over time.

The following information replaces similar disclosure contained under the “MAIN RISKS” heading in the summary section of the fund’s prospectus.

Subsidiary risk. Certain underlying funds may invest in a wholly–owned subsidiary of the underlying fund (the Subsidiary) that is not registered as an investment company under the Investment Company Act of 1940, as amended, and therefore it is not subject to all of the investor protections of the Investment Company Act of 1940. A regulatory change in the US or the Cayman Islands that impacts the Subsidiary or how the underlying fund invests in the Subsidiary, such as a change in tax law, could adversely affect the underlying fund and the fund. By investing in the Subsidiary, the underlying funds and the fund are exposed to the risks associated with the Subsidiary’s investments, which generally include the risks of investing in derivatives and commodities–related investments.

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Document and Entity Information	12 Months Ended
	Jan. 31, 2013
Risk/Return:
Document Type	Other
Document Period End Date	Jan. 31, 2013
Registrant Name	DWS MARKET TRUST
Central Index Key	0000095603
Amendment Flag	false
Document Creation Date	Jan. 31, 2013
Document Effective Date	Jan. 31, 2013
Prospectus Date	Aug. 01, 2012

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Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	DWS MARKET TRUST
Prospectus Date	rr_ProspectusDate	Aug. 01, 2012
Document Creation Date	dei_DocumentCreationDate	Jan. 31, 2013