485BPOS

As filed with the Securities and Exchange Commission on October 11, 2012

Securities Act File No. 333-139872

Investment Company File No. 811-22001

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933	x
Pre-Effective Amendment No.	¨
Post-Effective Amendment No. 9	x

and/or

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940	x
Amendment No. 11	x
(Check appropriate box or boxes)

db-X Exchange-Traded Funds Inc.

(Exact Name of Registrant as Specified in Charter)

60 Wall Street

New York, New York 10005

(Address of Principal Executive Offices) (Zip Code)

Registrant’s Telephone Number, including Area Code: (212) 250-5883

Alex Depetris

db-X Exchange-Traded Funds Inc.

60 Wall Street

New York, New York 10005

(Name and Address of Agent for Service)

Copy to:

Stuart Strauss, Esq.

Dechert LLP

1095 Avenue of the Americas

New York, New York 10036

It is proposed that this filing will become effective: (check appropriate box)

x immediately upon filing pursuant to paragraph (b)

¨ on (date) pursuant to paragraph (b)

¨ 60 days after filing pursuant to paragraph (a)(1)

¨ on (date) pursuant to paragraph (a)(1)

¨ 75 days after filing pursuant to paragraph (a)(2)

¨ on (date) pursuant to paragraph (a)(2) of Rule 485

If appropriate, check the following box:

¨ this post-effective amendment designates a new effective date for a previously filed post-effective amendment

EXPLANATORY NOTE

This amendment is being filed solely to submit exhibits containing risk/return summary information in interactive data format that is identical to the risk/return information contained in the Registrant’s prospectus that was filed with the Securities and Exchange Commission in Post-Effective Amendment No. 8 to the Registrant’s registration statement on September 28, 2012.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement pursuant to Rule 485(b) under the 1933 Act and has duly caused this Post-Effective Amendment to the Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, on the 11 day of October, 2012.

db-X Exchange-Traded Funds Inc.
By:	/s/ Alex Depetris
	Alex Depetris
	President and Chief Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities stated and on the dates indicated.

SIGNATURE	CAPACITY	DATE
/s/ Alex Depetris	Director and Chairman, President and	October 11, 2012
Alex Depetris	Chief Executive Officer
/s/ Michael Gilligan	Treasurer, Chief Financial	October 11, 2012
Michael Gilligan	Officer and Controller
/s/ Ernest J. Scalberg*	Director	October 11, 2012
Ernest J. Scalberg
/s/ Michael G. Smith*	Director	October 11, 2012
Michael G. Smith
/s/ R. Charles Tschampion*	Director	October 11, 2012
R. Charles Tschampion

*By:	/s/ Alex Depetris
	Alex Depetris (attorney-in-fact)

EXHIBIT INDEX

Exhibit Number	Description
EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.CAL	XBRL Taxonomy Extension Calculation Linkbase
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

db-X Exchange-Traded Funds Inc.

Prospectus Date

rr_ProspectusDate

Sep. 28, 2012

db-X 2040 Target Date Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

db-X 2040 Target Date Fund

Summary Information

Objective [Heading]

rr_ObjectiveHeading

Investment Objective/Goal

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to track the performance, before fees and expenses, of the Zacks 2040 Lifecycle Index (the “Underlying Index”). The Fund’s investment objective is not fundamental and may be changed without shareholder approval. Shareholders will be given 60 days’ notice of any change in investment objective.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses you may pay if you buy and hold shares (“Shares” or “db-X Target Date Shares”) of the Fund. Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
    (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

September 30, 2013

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 34% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

34.00%

Expense Exchange Traded Fund Commissions [Text]

rr_ExpenseExchangeTradedFundCommissions

Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

As its primary strategy, the Fund will invest at least 90% of its assets in the component securities (the "Component Securities") of the Underlying Index, depositary receipts representing Component Securities and investments that have economic characteristics that are substantially identical to the economic characteristics of the Component Securities of the Underlying Index. Such securities may include domestic and international equity securities (including common stocks and real estate investment trusts) and fixed income securities (including bonds, treasury bills and notes, mortgage real estate investment trusts, cash, cash equivalents and short-term money market instruments). The domestic equity portion may include securities from all capitalization ranges. Only investment-grade fixed income securities are eligible for inclusion in the fixed income portion of the Underlying Index. The Fund employs a representative sampling indexing strategy in managing the portfolio by holding equity securities and fixed income securities that, in the aggregate, are intended to approximate the Underlying Index in terms of key characteristics, such as price/earnings ratio, earnings growth, maturity, duration, or dividend yield. The Fund will provide shareholders with at least 60 days' notice of any change in these policies.

The Underlying Index is comprised of securities from three broad asset classes: international equities, domestic equities, and fixed income, and is designed to represent a diversified portfolio of securities with the potential to outperform the Lipper Mixed-Asset Target 2030+ Index, on a risk adjusted basis. The current allocation of the Underlying Index is approximately 21% in international equities, 72% in domestic equities and 7% in fixed income and will be systematically reconstituted and rebalanced annually, or quarterly when necessary, pursuant to a proprietary methodology developed by Zacks Investment Research ("Zacks"), the creator of the Underlying Index. The weighted average duration for the fixed income securities will, collectively, approximate as nearly as possible the time to the target termination date, December 31, 2040. Following the target date, the duration for the fixed income securities will increase each year up to a maximum duration of five years. Upon reaching the target date, the Underlying Index will have approximately a 10% allocation to equity securities. Over the next five years, allocations shift from conservative to more moderately-conservative allocations, allowing for a larger exposure to equities than at the target date ("Moderately-Conservative Allocation"). The securities in the universe are selected using a proprietary methodology developed by Zacks. Investors should note that the allocations listed above, and in the chart below, are as of June 30, 2012.

The following chart shows how the investment glidepath for the Fund is expected to gradually shift to a Moderately-Conservative Allocation. The actual asset allocations of the Fund may differ from this chart. The Fund seeks to achieve its final target allocation five years following the target date.

Risk [Heading]

rr_RiskHeading

Principal Risks of Investing in the Fund

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

The following summarizes the principal risks that have been identified for the Fund.

• The Fund is subject to stock market risk, which is the risk that stock prices overall will decline over a given period of time. The Fund’s total return, like stock prices generally, will fluctuate within a wide range, so an investor could lose money over short or even long periods. Stock markets tend to be volatile, with periods of rising prices and periods of falling prices. The stock market has been subject to significant volatility recently which has increased the risks associated with an investment in the Fund.

• The Fund is subject to index risk, which is the risk that securities in the Underlying Index may under-perform fixed income investments or stock market investments that track other markets, segments or sectors. The Advisor does not actively manage the Fund and therefore does not attempt to analyze, quantify or control the risks associated with investing in securities included in, or representative of, the Underlying Index.

• The Fund is subject to large-capitalization risk, which is the risk that large-capitalization companies may grow slower than the overall economy and tend to go in and out of favor based on market and economic conditions.

• The Fund is subject to small- and mid-capitalization risk, which is the risk that returns from small- and mid-capitalization stocks may trail returns from the overall stock market. Historically, these stocks have been more volatile in price than the large-capitalization stocks.

• The Fund is subject to non-correlation risk, which is the risk that the securities held by the Fund will not provide investment performance tracking the Underlying Index.

• The Fund is subject to market price risk, which is the risk associated with the fact that the db-X Target Date Shares are listed on NYSE Arca and can be bought and sold in the secondary market at market prices. Although it is expected that the market price of the db-X Target Date Shares typically will approximate its NAV, there may be times when the market price and the NAV differ significantly. Thus, you may pay more than NAV when buying db-X Target Date Shares on the secondary market, and you may receive less than NAV when you sell db-X Target Date Shares.

• The Fund is subject to foreign securities risk, which is the risk that political and economic events unique to a foreign country or region will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of a Fund’s investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer’s home country.

• The Fund is subject to secondary market risk. Although the db-X Target Date Shares are listed for trading on NYSE Arca, it is possible that an active trading market may not be maintained. Trading of the db-X Target Date Shares on NYSE Arca may be halted if NYSE Arca officials deem such action appropriate, if the db-X Target Date Shares are delisted from NYSE Arca or if the activation of market-wide “circuit breakers” halts stock trading generally.

• The Fund is subject to REIT risk. The Fund’s investments in the securities of REITs may subject the Fund to the risks associated with the direct ownership of real estate. Also, when investing in REITs, in addition to the advisory fees and other expenses the Fund bears directly in connection with its own operations, the Fund will also bear its pro rata portion of the REITs management fees and other expenses. As such, the Fund’s shareholders would indirectly bear the expenses of the Fund and the REITs, some or all of which would be duplicative.

• The Fund is subject to fixed income risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the credit risk of individual issuers. Increases in interest rates can cause the prices of the Fund’s fixed income securities to decline, and the level of current income from a portfolio of fixed income securities may decline in certain interest rate environments.

• The Fund is subject to model risk, which is the risk that the allocation model used to calculate the Underlying Index will not maximize returns and/or minimize risks in accordance with the targeted time horizon for the Underlying Index. The Advisor cannot offer assurance that a particular allocation will be the appropriate allocation in all circumstances for every investor seeking a particular risk profile or time horizon.

The Fund’s Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Risk Lose Money [Text]

rr_RiskLoseMoney

The Fund’s Shares will change in value, and you could lose money by investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund. The bar chart that follows shows the annual total returns of the Fund for each full calendar year since the Fund commenced operations. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The table also shows how the Fund’s performance compares to the Zacks 2040 Lifecycle Index and that of a relevant broad-based securities index. Index returns do not reflect deductions of fees, expenses or taxes. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://dbxstrategicadvisors.db.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

http://dbxstrategicadvisors.db.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Total Returns

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

The Fund's year-to-date total return as of June 30, 2012, was 7.40%.

Best and Worst Quarter Returns

(for the periods reflected in the bar chart above)

	Return			Quarter/Year
Highest Return		17.67	%		2Q/2009
Lowest Return		(21.01	)%		4Q/2008

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended December 31, 2011

Index No Deduction for Fees, Expenses, Taxes [Text]

rr_IndexNoDeductionForFeesExpensesTaxes

Index returns do not reflect deductions of fees, expenses or taxes.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

db-X 2040 Target Date Fund | db-X 2040 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

Management Fee

rr_ManagementFeesOverAssets

0.65%

Other Expenses

rr_OtherExpensesOverAssets

0.55%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.20%

Fee Waivers and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.55%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement

rr_NetExpensesOverAssets

0.65%

^[1]

1 YEAR

rr_ExpenseExampleYear01

66

3 YEARS

rr_ExpenseExampleYear03

326

5 YEARS

rr_ExpenseExampleYear05

607

10 YEARS

rr_ExpenseExampleYear10

1,406

2008

rr_AnnualReturn2008

(37.43%)

2009

rr_AnnualReturn2009

24.50%

2010

rr_AnnualReturn2010

11.95%

2011

rr_AnnualReturn2011

(0.37%)

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund's year-to-date total return as of June 30, 2012

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2012

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

7.40%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

17.67%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(21.01%)

1 Year

rr_AverageAnnualReturnYear01

(0.37%)

Since Inception

rr_AverageAnnualReturnSinceInception

(4.22%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2040 Target Date Fund | Return after taxes on distributions | db-X 2040 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(0.66%)

Since Inception

rr_AverageAnnualReturnSinceInception

(4.52%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2040 Target Date Fund | Return after taxes on distributions and sale of Fund shares | db-X 2040 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

0.13%

Since Inception

rr_AverageAnnualReturnSinceInception

(3.60%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2040 Target Date Fund | Dow Jones U.S. Target 2040 Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(3.57%)

Since Inception

rr_AverageAnnualReturnSinceInception

(1.61%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2040 Target Date Fund | Zacks 2040 Lifecycle Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(0.02%)

Since Inception

rr_AverageAnnualReturnSinceInception

(4.07%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

[1] DBX Strategic Advisors LLC (the "Advisor") has contractually agreed to pay Fund operating expenses (excluding, among other things, acquired fund fees and expenses, interest, taxes, brokerage commissions and extraordinary expenses) in order to limit Net Annual Operating Expenses for shares of the Fund to 0.65% of the Fund's average net assets (the "Expense Cap"). The Expense Cap will remain in effect until at least September 30, 2013 and may not be terminated by the Advisor before that time. The Advisor is permitted to be reimbursed for fee reductions and/or expense payments made in the prior three fiscal years.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

db-X Exchange-Traded Funds Inc.

Prospectus Date

rr_ProspectusDate

Sep. 28, 2012

db-X In-Target Date Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

db-X In-Target Date Fund

Summary Information

Objective [Heading]

rr_ObjectiveHeading

Investment Objective/Goal

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to track the performance, before fees and expenses, of the Zacks In-Target Lifecycle Index (the “Underlying Index”). The Fund’s investment objective is not fundamental and may be changed without shareholder approval. Shareholders will be given 60 days’ notice of any change in investment objective.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses you may pay if you buy and hold shares (“Shares” or “db-X Target Date Shares”) of the Fund. Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
    (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

September 30, 2013

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 59% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

59.00%

Expense Exchange Traded Fund Commissions [Text]

rr_ExpenseExchangeTradedFundCommissions

Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

As its primary strategy, the Fund will invest at least 90% of its assets in the component securities (the "Component Securities") of the Underlying Index, depositary receipts representing Component Securities and investments that have economic characteristics that are substantially identical to the economic characteristics of the Component Securities of the Underlying Index. Such securities may include domestic and international equity securities (including common stocks and real estate investment trusts) and fixed income securities (including bonds, treasury bills and notes, mortgage real estate investment trusts, cash, cash equivalents and short-term money market instruments). The domestic equity portion may include securities from all capitalization ranges. Only investment-grade fixed income securities are eligible for inclusion in the fixed income portion of the Underlying Index. The Fund employs a representative sampling indexing strategy in managing the portfolio by holding equity securities and fixed income securities that, in the aggregate, are intended to approximate the Underlying Index in terms of key characteristics, such as price/earnings ratio, earnings growth, maturity, duration, or dividend yield. The Fund will provide shareholders with at least 60 days' notice of any change in these policies.

The Underlying Index is comprised of securities from three broad asset classes: international equities, domestic equities, and fixed income, and is designed to represent a diversified portfolio of securities with the potential to outperform the Lipper Mixed-Target Allocation Conservative Funds Index, on a risk adjusted basis. The Underlying Index is designed for persons who are at or near their target date at the time of investment and has a current allocation of approximately 6% in international equities, 22% in domestic equities and 72% in fixed income and will be systematically reconstituted and rebalanced annually, or quarterly when necessary, pursuant to a proprietary methodology developed by Zacks Investment Research ("Zacks"), the creator of the Underlying Index. Since the inception of the Fund, the duration for the fixed income securities increase each year up to a maximum duration of five years. At inception, the Underlying Index had approximately a 10% allocation to equity securities. Over the next two years, allocations will shift from conservative to more moderately-conservative allocations, allowing for a larger exposure to equities than at inception ("Moderately-Conservative Allocation"). The securities in the universe are selected using a proprietary methodology developed by Zacks. Investors should note that the allocations listed above, and in the table below, are as of June 30, 2012.

The following chart shows how the investment glidepath for the Fund is expected to gradually shift to a Moderately-Conservative Allocation. The actual asset allocations of the Fund may differ from this chart. The Fund seeks to achieve its final target allocation five years following the target date.

Risk [Heading]

rr_RiskHeading

Principal Risks of Investing in the Fund

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

The following summarizes the principal risks that have been identified for the Fund.

• The Fund is subject to stock market risk, which is the risk that stock prices overall will decline over a given period of time. The Fund’s total return, like stock prices generally, will fluctuate within a wide range, so an investor could lose money over short or even long periods. Stock markets tend to be volatile, with periods of rising prices and periods of falling prices. The stock market has been subject to significant volatility recently which has increased the risks associated with an investment in the Fund.

• The Fund is subject to index risk, which is the risk that securities in the Underlying Index may under-perform fixed income investments or stock market investments that track other markets, segments or sectors. The Advisor does not actively manage the Fund and therefore does not attempt to analyze, quantify or control the risks associated with investing in securities included in, or representative of, the Underlying Index.

• The Fund is subject to large-capitalization risk, which is the risk that large-capitalization companies may grow slower than the overall economy and tend to go in and out of favor based on market and economic conditions.

• The Fund is subject to small- and mid-capitalization risk, which is the risk that returns from small- and mid-capitalization stocks may trail returns from the overall stock market. Historically, these stocks have been more volatile in price than the large-capitalization stocks.

• The Fund is subject to non-correlation risk, which is the risk that the securities held by the Fund will not provide investment performance tracking the Underlying Index.

• The Fund is subject to market price risk, which is the risk associated with the fact that the db-X Target Date Shares are listed on NYSE Arca and can be bought and sold in the secondary market at market prices. Although it is expected that the market price of the db-X Target Date Shares typically will approximate its NAV, there may be times when the market price and the NAV differ significantly. Thus, you may pay more than NAV when buying db-X Target Date Shares on the secondary market, and you may receive less than NAV when you sell db-X Target Date Shares.

• The Fund is subject to foreign securities risk, which is the risk that political and economic events unique to a foreign country or region will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of a Fund’s investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer’s home country.

• The Fund is subject to secondary market risk. Although the db-X Target Date Shares are listed for trading on NYSE Arca, it is possible that an active trading market may not be maintained. Trading of the db-X Target Date Shares on NYSE Arca may be halted if NYSE Arca officials deem such action appropriate, if the db-X Target Date Shares are delisted from NYSE Arca or if the activation of market-wide “circuit breakers” halts stock trading generally.

• The Fund is subject to REIT risk. The Fund’s investments in the securities of REITs may subject the Fund to the risks associated with the direct ownership of real estate. Also, when investing in REITs, in addition to the advisory fees and other expenses the Fund bears directly in connection with its own operations, the Fund will also bear its pro rata portion of the REITs management fees and other expenses. As such, the Fund’s shareholders would indirectly bear the expenses of the Fund and the REITs, some or all of which would be duplicative.

• The Fund is subject to fixed income risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the credit risk of individual issuers. Increases in interest rates can cause the prices of the Fund’s fixed income securities to decline, and the level of current income from a portfolio of fixed income securities may decline in certain interest rate environments.

• The Fund is subject to model risk, which is the risk that the allocation model used to calculate the Underlying Index will not maximize returns and/or minimize risks in accordance with the targeted time horizon for the Underlying Index. The Advisor cannot offer assurance that a particular allocation will be the appropriate allocation in all circumstances for every investor seeking a particular risk profile or time horizon.

The Fund’s Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Risk Lose Money [Text]

rr_RiskLoseMoney

The Fund’s Shares will change in value, and you could lose money by investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund. The bar chart that follows shows the annual total returns of the Fund for each full calendar year since the Fund commenced operations. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The table also shows how the Fund’s performance compares to the Zacks In-Target Lifecycle Index and that of a relevant broad-based securities index. Index returns do not reflect deductions of fees, expenses or taxes. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://dbxstrategicadvisors.db.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

http://dbxstrategicadvisors.db.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Total Returns

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

The Fund's year-to-date total return as of June 30, 2012, was 2.06%.

Best and Worst Quarter Returns

(for the periods reflected in the bar chart above)

	Return			Quarter/Year
Highest Return		3.48	%		3Q/2009
Lowest Return		(4.51	)%		3Q/2011

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended December 31, 2011

Index No Deduction for Fees, Expenses, Taxes [Text]

rr_IndexNoDeductionForFeesExpensesTaxes

Index returns do not reflect deductions of fees, expenses or taxes.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

db-X In-Target Date Fund | db-X In-Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

Management Fee

rr_ManagementFeesOverAssets

0.65%

Other Expenses

rr_OtherExpensesOverAssets

0.71%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.36%

Fee Waivers and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.71%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement

rr_NetExpensesOverAssets

0.65%

^[1]

1 YEAR

rr_ExpenseExampleYear01

66

3 YEARS

rr_ExpenseExampleYear03

361

5 YEARS

rr_ExpenseExampleYear05

677

10 YEARS

rr_ExpenseExampleYear10

1,573

2008

rr_AnnualReturn2008

(2.00%)

2009

rr_AnnualReturn2009

5.99%

2010

rr_AnnualReturn2010

4.27%

2011

rr_AnnualReturn2011

(0.04%)

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund's year-to-date total return as of June 30, 2012

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2012

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

2.06%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.48%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2011

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(4.51%)

1 Year

rr_AverageAnnualReturnYear01

(0.04%)

Since Inception

rr_AverageAnnualReturnSinceInception

2.14%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X In-Target Date Fund | Return after taxes on distributions | db-X In-Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(0.18%)

Since Inception

rr_AverageAnnualReturnSinceInception

1.65%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X In-Target Date Fund | Return after taxes on distributions and sale of Fund shares | db-X In-Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(0.08%)

Since Inception

rr_AverageAnnualReturnSinceInception

1.56%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X In-Target Date Fund | Dow Jones U.S. Target Today Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

5.49%

Since Inception

rr_AverageAnnualReturnSinceInception

5.24%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X In-Target Date Fund | Zacks In-Target Lifecycle Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

0.56%

Since Inception

rr_AverageAnnualReturnSinceInception

2.27%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

[1] DBX Strategic Advisors LLC (the "Advisor") has contractually agreed to pay Fund operating expenses (excluding, among other things, acquired fund fees and expenses, interest, taxes, brokerage commissions and extraordinary expenses) in order to limit Net Annual Operating Expenses for shares of the Fund to 0.65% of the Fund's average net assets (the "Expense Cap"). The Expense Cap will remain in effect until at least September 30, 2013 and may not be terminated by the Advisor before that time. The Advisor is permitted to be reimbursed for fee reductions and/or expense payments made in the prior three fiscal years.

XML

db-X 2020 Target Date Fund

db-X 2020 Target Date Fund

Summary Information

Investment Objective/Goal

The Fund seeks to track the performance, before fees and expenses, of the Zacks 2020 Lifecycle Index (the “Underlying Index”). The Fund’s investment objective is not fundamental and may be changed without shareholder approval. Shareholders will be given 60 days’ notice of any change in investment objective.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares (“Shares” or “db-X Target Date Shares”) of the Fund. Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Annual Fund Operating Expenses
    (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		db-X 2020 Target Date Fund db-X 2020 Target Date Shares
Management Fee		0.65%
Other Expenses		0.51%
Total Annual Fund Operating Expenses		1.16%
Fee Waivers and Expense Reimbursement	[1]	(0.51%)
Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement	[1]	0.65%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	1 YEAR	3 YEARS	5 YEARS	10 YEARS
db-X 2020 Target Date Fund db-X 2020 Target Date Shares	66	318	589	1,363

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 55% of the average value of its portfolio.

Principal Investment Strategies

As its primary strategy, the Fund will invest at least 90% of its assets in the component securities (the "Component Securities") of the Underlying Index, depositary receipts representing Component Securities and investments that have economic characteristics that are substantially identical to the economic characteristics of the Component Securities of the Underlying Index. Such securities may include domestic and international equity securities (including common stocks and real estate investment trusts) and fixed income securities (including bonds, treasury bills and notes, mortgage real estate investment trusts, cash, cash equivalents and short-term money market instruments). The domestic equity portion may include securities from all capitalization ranges. Only investment-grade fixed income securities are eligible for inclusion in the fixed income portion of the Underlying Index. The Fund employs a representative sampling indexing strategy in managing the portfolio by holding equity securities and fixed income securities that, in the aggregate, are intended to approximate the Underlying Index in terms of key characteristics, such as price/earnings ratio, earnings growth, maturity, duration, or dividend yield. The Fund will provide shareholders with at least 60 days' notice of any change in these policies.

The Underlying Index is comprised of securities from three broad asset classes: international equities, domestic equities, and fixed income, and is designed to represent a diversified portfolio of securities with the potential to outperform the Lipper Mixed-Asset Target 2020 Index, on a risk adjusted basis. The current allocation of the Underlying Index is approximately 13% in international equities, 42% in domestic equities and 45% in fixed income and will be systematically reconstituted and rebalanced annually, or quarterly when necessary, pursuant to a proprietary methodology developed by Zacks Investment Research ("Zacks"), the creator of the Underlying Index. The weighted average duration for the fixed income securities will, collectively, match the time to the target termination date, December 31, 2020. Following the target date, the duration for the fixed income securities will increase each year up to a maximum duration of five years. Upon reaching the target date, the Underlying Index will have approximately a 10% allocation to equity securities. Over the next five years, allocations shift from conservative to more moderately-conservative allocations, allowing for a larger exposure to equities than at the target date ("Moderately-Conservative Allocation"). The securities in the universe are selected using a proprietary methodology developed by Zacks. Investors should note that the allocations listed above, and in the chart below, are as of June 30, 2012.

The following chart shows how the investment glidepath for the Fund is expected to gradually shift to a Moderately-Conservative Allocation. The actual asset allocations of the Fund may differ from this chart. The Fund seeks to achieve its final target allocation five years following the target date.

Principal Risks of Investing in the Fund

The following summarizes the principal risks that have been identified for the Fund.

• The Fund is subject to stock market risk, which is the risk that stock prices overall will decline over a given period of time. The Fund’s total return, like stock prices generally, will fluctuate within a wide range, so an investor could lose money over short or even long periods. Stock markets tend to be volatile, with periods of rising prices and periods of falling prices. The stock market has been subject to significant volatility recently which has increased the risks associated with an investment in the Fund.

• The Fund is subject to index risk, which is the risk that securities in the Underlying Index may under-perform fixed income investments or stock market investments that track other markets, segments or sectors. The Advisor does not actively manage the Fund and therefore does not attempt to analyze, quantify or control the risks associated with investing in securities included in, or representative of, the Underlying Index.

• The Fund is subject to large-capitalization risk, which is the risk that large-capitalization companies may grow slower than the overall economy and tend to go in and out of favor based on market and economic conditions.

• The Fund is subject to small- and mid-capitalization risk, which is the risk that returns from small- and mid-capitalization stocks may trail returns from the overall stock market. Historically, these stocks have been more volatile in price than the large-capitalization stocks.

• The Fund is subject to non-correlation risk, which is the risk that the securities held by the Fund will not provide investment performance tracking the Underlying Index.

• The Fund is subject to market price risk, which is the risk associated with the fact that the db-X Target Date Shares are listed on NYSE Arca and can be bought and sold in the secondary market at market prices. Although it is expected that the market price of the db-X Target Date Shares typically will approximate its NAV, there may be times when the market price and the NAV differ significantly. Thus, you may pay more than NAV when buying db-X Target Date Shares on the secondary market, and you may receive less than NAV when you sell db-X Target Date Shares.

• The Fund is subject to foreign securities risk, which is the risk that political and economic events unique to a foreign country or region will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of a Fund’s investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer’s home country.

• The Fund is subject to secondary market risk. Although the db-X Target Date Shares are listed for trading on NYSE Arca, it is possible that an active trading market may not be maintained. Trading of the db-X Target Date Shares on NYSE Arca may be halted if NYSE Arca officials deem such action appropriate, if the db-X Target Date Shares are delisted from NYSE Arca or if the activation of market-wide “circuit breakers” halts stock trading generally.

• The Fund is subject to REIT risk. The Fund’s investments in the securities of REITs may subject the Fund to the risks associated with the direct ownership of real estate. Also, when investing in REITs, in addition to the advisory fees and other expenses the Fund bears directly in connection with its own operations, the Fund will also bear its pro rata portion of the REITs management fees and other expenses. As such, the Fund’s shareholders would indirectly bear the expenses of the Fund and the REITs, some or all of which would be duplicative.

• The Fund is subject to fixed income risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the credit risk of individual issuers. Increases in interest rates can cause the prices of the Fund’s fixed income securities to decline, and the level of current income from a portfolio of fixed income securities may decline in certain interest rate environments.

• The Fund is subject to model risk, which is the risk that the allocation model used to calculate the Underlying Index will not maximize returns and/or minimize risks in accordance with the targeted time horizon for the Underlying Index. The Advisor cannot offer assurance that a particular allocation will be the appropriate allocation in all circumstances for every investor seeking a particular risk profile or time horizon.

The Fund’s Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Performance

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund. The bar chart that follows shows the annual total returns of the Fund for each full calendar year since the Fund commenced operations. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The table also shows how the Fund’s performance compares to the Zacks 2020 Lifecycle Index and that of a relevant broad-based securities index. Index returns do not reflect deductions of fees, expenses or taxes. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://dbxstrategicadvisors.db.com.

Total Returns

The Fund's year-to-date total return as of June 30, 2012, was 4.19%.

Best and Worst Quarter Returns

(for the periods reflected in the bar chart above)

	Return			Quarter/Year
Highest Return		11.61	%		2Q/2009
Lowest Return		(9.61	)%		4Q/2008

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Average Annual Total Returns for the periods ended December 31, 2011

Average Annual Total Returns db-X 2020 Target Date Fund	1 Year	Since Inception	Inception Date
db-X 2020 Target Date Shares	0.88%	(0.69%)	Oct. 01, 2007
db-X 2020 Target Date Shares Return after taxes on distributions	0.56%	(1.29%)	Oct. 01, 2007
db-X 2020 Target Date Shares Return after taxes on distributions and sale of Fund shares	0.82%	(1.87%)	Oct. 01, 2007
Dow Jones U.S. Target 2020 Index (reflects no deduction for fees, expenses or taxes)	2.15%	1.55%	Oct. 01, 2007
Zacks 2020 Lifecycle Index (reflects no deduction for fees, expenses or taxes)	1.36%	(0.46%)	Oct. 01, 2007

[1] DBX Strategic Advisors LLC (the "Advisor") has contractually agreed to pay Fund operating expenses (excluding, among other things, acquired fund fees and expenses, interest, taxes, brokerage commissions and extraordinary expenses) in order to limit Net Annual Operating Expenses for shares of the Fund to 0.65% of the Fund's average net assets (the "Expense Cap"). The Expense Cap will remain in effect until at least September 30, 2013 and may not be terminated by the Advisor before that time. The Advisor is permitted to be reimbursed for fee reductions and/or expense payments made in the prior three fiscal years.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	db-X Exchange-Traded Funds Inc.
Prospectus Date	rr_ProspectusDate	Sep. 28, 2012
Document Creation Date	dei_DocumentCreationDate	Sep. 28, 2012

XML

db-X 2010 Target Date Fund

db-X 2010 Target Date Fund

Summary Information

Investment Objective/Goal

The Fund seeks to track the performance, before fees and expenses, of the Zacks 2010 Lifecycle Index (the “Underlying Index”). The Fund’s investment objective is not fundamental and may be changed without shareholder approval. Shareholders will be given 60 days’ notice of any change in investment objective.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares (“Shares” or “db-X Target Date Shares”) of the Fund. Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Annual Fund Operating Expenses
    (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		db-X 2010 Target Date Fund db-X 2010 Target Date Shares
Management Fee		0.65%
Other Expenses		0.74%
Total Annual Fund Operating Expenses		1.39%
Fee Waivers and Expense Reimbursement	[1]	(0.74%)
Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement	[1]	0.65%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	1 YEAR	3 YEARS	5 YEARS	10 YEARS
db-X 2010 Target Date Fund db-X 2010 Target Date Shares	66	367	690	1,604

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 65% of the average value of its portfolio.

Principal Investment Strategies

As its primary strategy, the Fund will invest at least 90% of its assets in the component securities (the "Component Securities") of the Underlying Index, depositary receipts representing Component Securities and investments that have economic characteristics that are substantially identical to the economic characteristics of the Component Securities of the Underlying Index. Such securities may include domestic and international equity securities (including common stocks and real estate investment trusts) and fixed income securities (including bonds, treasury bills and notes, mortgage real estate investment trusts, cash, cash equivalents and short-term money market instruments). The domestic equity portion may include securities from all capitalization ranges. Only investment-grade fixed income securities are eligible for inclusion in the fixed income portion of the Underlying Index. The Fund employs a representative sampling indexing strategy in managing the portfolio by holding equity securities and fixed income securities that, in the aggregate, are intended to approximate the Underlying Index in terms of key characteristics, such as price/earnings ratio, earnings growth, maturity, duration, or dividend yield. The Fund will provide shareholders with at least 60 days' notice of any change in these policies.

The Underlying Index is comprised of securities from three broad asset classes: international equities, domestic equities, and fixed income, and is designed to represent a diversified portfolio of securities with the potential to outperform the Lipper Mixed-Asset Target 2010 Index, on a risk adjusted basis. The current allocation of the Underlying Index is approximately 3% in international equities, 10% in domestic equities and 87% in fixed income and will be systematically reconstituted and rebalanced annually, or quarterly when necessary, pursuant to a proprietary methodology developed by Zacks Investment Research ("Zacks"), the creator of the Underlying Index. Prior to the target termination date of December 31, 2010, the weighted average duration for the fixed income securities was, collectively, aimed to match the time to such date. Following the target date, the duration for the fixed income securities increases each year up to a maximum duration of five years. As of the target date, the Underlying Index had approximately a 10% allocation to equity securities. Over the five years following the target date, allocations shift from conservative to more moderately-conservative allocations, allowing for a larger exposure to equities than at the target date ("Moderately-Conservative Allocation"). The securities in the universe are selected using a proprietary methodology developed by Zacks. Investors should note that the allocations listed above, and in the chart below, are as of June 30, 2012.

The following chart shows how the investment glidepath for the Fund is expected to gradually shift to a Moderately-Conservative Allocation. The actual asset allocations of the Fund may differ from this chart. The Fund seeks to achieve its final target allocation five years following the target date.

Principal Risks of Investing in the Fund

The following summarizes the principal risks that have been identified for the Fund.

• The Fund is subject to stock market risk, which is the risk that stock prices overall will decline over a given period of time. The Fund’s total return, like stock prices generally, will fluctuate within a wide range, so an investor could lose money over short or even long periods. Stock markets tend to be volatile, with periods of rising prices and periods of falling prices. The stock market has been subject to significant volatility recently which has increased the risks associated with an investment in the Fund.

• The Fund is subject to index risk, which is the risk that securities in the Underlying Index may under-perform fixed income investments or stock market investments that track other markets, segments or sectors. The Advisor does not actively manage the Fund and therefore does not attempt to analyze, quantify or control the risks associated with investing in securities included in, or representative of, the Underlying Index.

• The Fund is subject to large-capitalization risk, which is the risk that large-capitalization companies may grow slower than the overall economy and tend to go in and out of favor based on market and economic conditions.

• The Fund is subject to small- and mid-capitalization risk, which is the risk that returns from small- and mid-capitalization stocks may trail returns from the overall stock market. Historically, these stocks have been more volatile in price than the large-capitalization stocks.

• The Fund is subject to non-correlation risk, which is the risk that the securities held by the Fund will not provide investment performance tracking the Underlying Index.

• The Fund is subject to market price risk, which is the risk associated with the fact that the db-X Target Date Shares are listed on NYSE Arca and can be bought and sold in the secondary market at market prices. Although it is expected that the market price of the db-X Target Date Shares typically will approximate its NAV, there may be times when the market price and the NAV differ significantly. Thus, you may pay more than NAV when buying db-X Target Date Shares on the secondary market, and you may receive less than NAV when you sell db-X Target Date Shares.

• The Fund is subject to foreign securities risk, which is the risk that political and economic events unique to a foreign country or region will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of a Fund’s investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer’s home country.

• The Fund is subject to secondary market risk. Although the db-X Target Date Shares are listed for trading on NYSE Arca, it is possible that an active trading market may not be maintained. Trading of the db-X Target Date Shares on NYSE Arca may be halted if NYSE Arca officials deem such action appropriate, if the db-X Target Date Shares are delisted from NYSE Arca or if the activation of market-wide “circuit breakers” halts stock trading generally.

• The Fund is subject to REIT risk. The Fund’s investments in the securities of REITs may subject the Fund to the risks associated with the direct ownership of real estate. Also, when investing in REITs, in addition to the advisory fees and other expenses the Fund bears directly in connection with its own operations, the Fund will also bear its pro rata portion of the REITs management fees and other expenses. As such, the Fund’s shareholders would indirectly bear the expenses of the Fund and the REITs, some or all of which would be duplicative.

• The Fund is subject to fixed income risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the credit risk of individual issuers. Increases in interest rates can cause the prices of the Fund’s fixed income securities to decline, and the level of current income from a portfolio of fixed income securities may decline in certain interest rate environments.

• The Fund is subject to model risk, which is the risk that the allocation model used to calculate the Underlying Index will not maximize returns and/or minimize risks in accordance with the targeted time horizon for the Underlying Index. The Advisor cannot offer assurance that a particular allocation will be the appropriate allocation in all circumstances for every investor seeking a particular risk profile or time horizon.

The Fund’s Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Performance

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund. The bar chart that follows shows the annual total returns of the Fund for each full calendar year since the Fund commenced operations. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The table also shows how the Fund’s performance compares to the Zacks 2010 Lifecycle Index and that of a relevant broad-based securities index. Index returns do not reflect deductions of fees, expenses or taxes. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://dbxstrategicadvisors.db.com.

Total Returns

The Fund's year-to-date total return as of June 30, 2012, was 0.89%.

Best and Worst Quarter Returns

(for the periods reflected in the bar chart above)

	Return			Quarter/Year
Highest Return		5.17	%		2Q/2009
Lowest Return		(4.57	)%		3Q/2008

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Average Annual Total Returns for the periods ended December 31, 2011

Average Annual Total Returns db-X 2010 Target Date Fund	1 Year	Since Inception	Inception Date
db-X 2010 Target Date Shares	1.07%	0.67%	Oct. 01, 2007
db-X 2010 Target Date Shares Return after taxes on distributions	0.82%	(0.10%)	Oct. 01, 2007
db-X 2010 Target Date Shares Return after taxes on distributions and sale of Fund shares	0.74%	0.16%	Oct. 01, 2007
Dow Jones U.S. Target 2010 Index (reflects no deduction for fees, expenses or taxes)	(0.92%)	3.98%	Oct. 01, 2007
Zacks 2010 Lifecycle Index (reflects no deduction for fees, expenses or taxes)	1.61%	0.92%	Oct. 01, 2007

[1] DBX Strategic Advisors LLC (the "Advisor") has contractually agreed to pay Fund operating expenses (excluding, among other things, acquired fund fees and expenses, interest, taxes, brokerage commissions and extraordinary expenses) in order to limit Net Annual Operating Expenses for shares of the Fund to 0.65% of the Fund's average net assets (the "Expense Cap"). The Expense Cap will remain in effect until at least September 30, 2013 and may not be terminated by the Advisor before that time. The Advisor is permitted to be reimbursed for fee reductions and/or expense payments made in the prior three fiscal years.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

db-X Exchange-Traded Funds Inc.

Prospectus Date

rr_ProspectusDate

Sep. 28, 2012

db-X 2010 Target Date Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

db-X 2010 Target Date Fund

Summary Information

Objective [Heading]

rr_ObjectiveHeading

Investment Objective/Goal

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to track the performance, before fees and expenses, of the Zacks 2010 Lifecycle Index (the “Underlying Index”). The Fund’s investment objective is not fundamental and may be changed without shareholder approval. Shareholders will be given 60 days’ notice of any change in investment objective.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses you may pay if you buy and hold shares (“Shares” or “db-X Target Date Shares”) of the Fund. Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
    (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

September 30, 2013

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 65% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

65.00%

Expense Exchange Traded Fund Commissions [Text]

rr_ExpenseExchangeTradedFundCommissions

Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

As its primary strategy, the Fund will invest at least 90% of its assets in the component securities (the "Component Securities") of the Underlying Index, depositary receipts representing Component Securities and investments that have economic characteristics that are substantially identical to the economic characteristics of the Component Securities of the Underlying Index. Such securities may include domestic and international equity securities (including common stocks and real estate investment trusts) and fixed income securities (including bonds, treasury bills and notes, mortgage real estate investment trusts, cash, cash equivalents and short-term money market instruments). The domestic equity portion may include securities from all capitalization ranges. Only investment-grade fixed income securities are eligible for inclusion in the fixed income portion of the Underlying Index. The Fund employs a representative sampling indexing strategy in managing the portfolio by holding equity securities and fixed income securities that, in the aggregate, are intended to approximate the Underlying Index in terms of key characteristics, such as price/earnings ratio, earnings growth, maturity, duration, or dividend yield. The Fund will provide shareholders with at least 60 days' notice of any change in these policies.

The Underlying Index is comprised of securities from three broad asset classes: international equities, domestic equities, and fixed income, and is designed to represent a diversified portfolio of securities with the potential to outperform the Lipper Mixed-Asset Target 2010 Index, on a risk adjusted basis. The current allocation of the Underlying Index is approximately 3% in international equities, 10% in domestic equities and 87% in fixed income and will be systematically reconstituted and rebalanced annually, or quarterly when necessary, pursuant to a proprietary methodology developed by Zacks Investment Research ("Zacks"), the creator of the Underlying Index. Prior to the target termination date of December 31, 2010, the weighted average duration for the fixed income securities was, collectively, aimed to match the time to such date. Following the target date, the duration for the fixed income securities increases each year up to a maximum duration of five years. As of the target date, the Underlying Index had approximately a 10% allocation to equity securities. Over the five years following the target date, allocations shift from conservative to more moderately-conservative allocations, allowing for a larger exposure to equities than at the target date ("Moderately-Conservative Allocation"). The securities in the universe are selected using a proprietary methodology developed by Zacks. Investors should note that the allocations listed above, and in the chart below, are as of June 30, 2012.

The following chart shows how the investment glidepath for the Fund is expected to gradually shift to a Moderately-Conservative Allocation. The actual asset allocations of the Fund may differ from this chart. The Fund seeks to achieve its final target allocation five years following the target date.

Risk [Heading]

rr_RiskHeading

Principal Risks of Investing in the Fund

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

The following summarizes the principal risks that have been identified for the Fund.

• The Fund is subject to stock market risk, which is the risk that stock prices overall will decline over a given period of time. The Fund’s total return, like stock prices generally, will fluctuate within a wide range, so an investor could lose money over short or even long periods. Stock markets tend to be volatile, with periods of rising prices and periods of falling prices. The stock market has been subject to significant volatility recently which has increased the risks associated with an investment in the Fund.

• The Fund is subject to index risk, which is the risk that securities in the Underlying Index may under-perform fixed income investments or stock market investments that track other markets, segments or sectors. The Advisor does not actively manage the Fund and therefore does not attempt to analyze, quantify or control the risks associated with investing in securities included in, or representative of, the Underlying Index.

• The Fund is subject to large-capitalization risk, which is the risk that large-capitalization companies may grow slower than the overall economy and tend to go in and out of favor based on market and economic conditions.

• The Fund is subject to small- and mid-capitalization risk, which is the risk that returns from small- and mid-capitalization stocks may trail returns from the overall stock market. Historically, these stocks have been more volatile in price than the large-capitalization stocks.

• The Fund is subject to non-correlation risk, which is the risk that the securities held by the Fund will not provide investment performance tracking the Underlying Index.

• The Fund is subject to market price risk, which is the risk associated with the fact that the db-X Target Date Shares are listed on NYSE Arca and can be bought and sold in the secondary market at market prices. Although it is expected that the market price of the db-X Target Date Shares typically will approximate its NAV, there may be times when the market price and the NAV differ significantly. Thus, you may pay more than NAV when buying db-X Target Date Shares on the secondary market, and you may receive less than NAV when you sell db-X Target Date Shares.

• The Fund is subject to foreign securities risk, which is the risk that political and economic events unique to a foreign country or region will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of a Fund’s investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer’s home country.

• The Fund is subject to secondary market risk. Although the db-X Target Date Shares are listed for trading on NYSE Arca, it is possible that an active trading market may not be maintained. Trading of the db-X Target Date Shares on NYSE Arca may be halted if NYSE Arca officials deem such action appropriate, if the db-X Target Date Shares are delisted from NYSE Arca or if the activation of market-wide “circuit breakers” halts stock trading generally.

• The Fund is subject to REIT risk. The Fund’s investments in the securities of REITs may subject the Fund to the risks associated with the direct ownership of real estate. Also, when investing in REITs, in addition to the advisory fees and other expenses the Fund bears directly in connection with its own operations, the Fund will also bear its pro rata portion of the REITs management fees and other expenses. As such, the Fund’s shareholders would indirectly bear the expenses of the Fund and the REITs, some or all of which would be duplicative.

• The Fund is subject to fixed income risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the credit risk of individual issuers. Increases in interest rates can cause the prices of the Fund’s fixed income securities to decline, and the level of current income from a portfolio of fixed income securities may decline in certain interest rate environments.

• The Fund is subject to model risk, which is the risk that the allocation model used to calculate the Underlying Index will not maximize returns and/or minimize risks in accordance with the targeted time horizon for the Underlying Index. The Advisor cannot offer assurance that a particular allocation will be the appropriate allocation in all circumstances for every investor seeking a particular risk profile or time horizon.

The Fund’s Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Risk Lose Money [Text]

rr_RiskLoseMoney

The Fund’s Shares will change in value, and you could lose money by investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund. The bar chart that follows shows the annual total returns of the Fund for each full calendar year since the Fund commenced operations. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The table also shows how the Fund’s performance compares to the Zacks 2010 Lifecycle Index and that of a relevant broad-based securities index. Index returns do not reflect deductions of fees, expenses or taxes. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://dbxstrategicadvisors.db.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

http://dbxstrategicadvisors.db.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Total Returns

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

The Fund's year-to-date total return as of June 30, 2012, was 0.89%.

Best and Worst Quarter Returns

(for the periods reflected in the bar chart above)

	Return			Quarter/Year
Highest Return		5.17	%		2Q/2009
Lowest Return		(4.57	)%		3Q/2008

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended December 31, 2011

Index No Deduction for Fees, Expenses, Taxes [Text]

rr_IndexNoDeductionForFeesExpensesTaxes

Index returns do not reflect deductions of fees, expenses or taxes.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

db-X 2010 Target Date Fund | db-X 2010 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

Management Fee

rr_ManagementFeesOverAssets

0.65%

Other Expenses

rr_OtherExpensesOverAssets

0.74%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.39%

Fee Waivers and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.74%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement

rr_NetExpensesOverAssets

0.65%

^[1]

1 YEAR

rr_ExpenseExampleYear01

66

3 YEARS

rr_ExpenseExampleYear03

367

5 YEARS

rr_ExpenseExampleYear05

690

10 YEARS

rr_ExpenseExampleYear10

1,604

2008

rr_AnnualReturn2008

(10.04%)

2009

rr_AnnualReturn2009

9.07%

2010

rr_AnnualReturn2010

4.19%

2011

rr_AnnualReturn2011

1.07%

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund’s year-to-date total return as of June 30, 2012

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2012

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.89%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

5.17%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(4.57%)

1 Year

rr_AverageAnnualReturnYear01

1.07%

Since Inception

rr_AverageAnnualReturnSinceInception

0.67%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2010 Target Date Fund | Return after taxes on distributions | db-X 2010 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

0.82%

Since Inception

rr_AverageAnnualReturnSinceInception

(0.10%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2010 Target Date Fund | Return after taxes on distributions and sale of Fund shares | db-X 2010 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

0.74%

Since Inception

rr_AverageAnnualReturnSinceInception

0.16%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2010 Target Date Fund | Dow Jones U.S. Target 2010 Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(0.92%)

Since Inception

rr_AverageAnnualReturnSinceInception

3.98%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2010 Target Date Fund | Zacks 2010 Lifecycle Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

1.61%

Since Inception

rr_AverageAnnualReturnSinceInception

0.92%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

[1] DBX Strategic Advisors LLC (the "Advisor") has contractually agreed to pay Fund operating expenses (excluding, among other things, acquired fund fees and expenses, interest, taxes, brokerage commissions and extraordinary expenses) in order to limit Net Annual Operating Expenses for shares of the Fund to 0.65% of the Fund's average net assets (the "Expense Cap"). The Expense Cap will remain in effect until at least September 30, 2013 and may not be terminated by the Advisor before that time. The Advisor is permitted to be reimbursed for fee reductions and/or expense payments made in the prior three fiscal years.

XML

Document and Entity Information	12 Months Ended
	Sep. 28, 2012
Risk/Return:
Document Type	485BPOS
Document Period End Date	May 31, 2012
Registrant Name	db-X Exchange-Traded Funds Inc.
Central Index Key	0001385533
Amendment Flag	false
Document Creation Date	Sep. 28, 2012
Document Effective Date	Sep. 28, 2012
Prospectus Date	Sep. 28, 2012

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

db-X Exchange-Traded Funds Inc.

Prospectus Date

rr_ProspectusDate

Sep. 28, 2012

db-X 2030 Target Date Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

db-X 2030 Target Date Fund

Summary Information

Objective [Heading]

rr_ObjectiveHeading

Investment Objective/Goal

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to track the performance, before fees and expenses, of the Zacks 2030 Lifecycle Index (the “Underlying Index”). The Fund’s investment objective is not fundamental and may be changed without shareholder approval. Shareholders will be given 60 days’ notice of any change in investment objective.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses you may pay if you buy and hold shares (“Shares” or “db-X Target Date Shares”) of the Fund. Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
    (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

September 30, 2013

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 40% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

40.00%

Expense Exchange Traded Fund Commissions [Text]

rr_ExpenseExchangeTradedFundCommissions

Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

As its primary strategy, the Fund will invest at least 90% of its assets in the component securities (the "Component Securities") of the Underlying Index, depositary receipts representing Component Securities and investments that have economic characteristics that are substantially identical to the economic characteristics of the Component Securities of the Underlying Index. Such securities may include domestic and international equity securities (including common stocks and real estate investment trusts) and fixed income securities (including bonds, treasury bills and notes, mortgage real estate investment trusts, cash, cash equivalents and short-term money market instruments). The domestic equity portion may include securities from all capitalization ranges. Only investment-grade fixed income securities are eligible for inclusion in the fixed income portion of the Underlying Index. The Fund employs a representative sampling indexing strategy in managing the portfolio by holding equity securities and fixed income securities that, in the aggregate, are intended to approximate the Underlying Index in terms of key characteristics, such as price/earnings ratio, earnings growth, maturity, duration, or dividend yield. The Fund will provide shareholders with at least 60 days' notice of any change in these policies.

The Underlying Index is comprised of securities from three broad asset classes: international equities, domestic equities, and fixed income, and is designed to represent a diversified portfolio of securities with the potential to outperform the Lipper Mixed-Asset Target 2030 Index, on a risk adjusted basis. The current allocation of the Underlying Index is approximately 18% in international equities, 58% in domestic equities and 24% in fixed income and will be systematically reconstituted and rebalanced annually, or quarterly when necessary, pursuant to a proprietary methodology developed by Zacks Investment Research ("Zacks"), the creator of the Underlying Index. The weighted average duration for the fixed income securities will, collectively, match the time to the target termination date, December 31, 2030. Following the target date, the duration for the fixed income securities will increase each year up to a maximum duration of five years. Upon reaching the target date, the Underlying Index will have approximately a 10% allocation to equity securities. Over the next five years, allocations shift from conservative to more moderately-conservative allocations, allowing for a larger exposure to equities than at the target date ("Moderately-Conservative Allocation"). The securities in the universe are selected using a proprietary methodology developed by Zacks. Investors should note that the allocations listed above, and in the chart below, are as of June 30, 2012.

The following chart shows how the investment glidepath for the Fund is expected to gradually shift to a Moderately-Conservative Allocation. The actual asset allocations of the Fund may differ from this chart. The Fund seeks to achieve its final target allocation five years following the target date.

Risk [Heading]

rr_RiskHeading

Principal Risks of Investing in the Fund

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

The following summarizes the principal risks that have been identified for the Fund.

• The Fund is subject to stock market risk, which is the risk that stock prices overall will decline over a given period of time. The Fund’s total return, like stock prices generally, will fluctuate within a wide range, so an investor could lose money over short or even long periods. Stock markets tend to be volatile, with periods of rising prices and periods of falling prices. The stock market has been subject to significant volatility recently which has increased the risks associated with an investment in the Fund.

• The Fund is subject to index risk, which is the risk that securities in the Underlying Index may under-perform fixed income investments or stock market investments that track other markets, segments or sectors. The Advisor does not actively manage the Fund and therefore does not attempt to analyze, quantify or control the risks associated with investing in securities included in, or representative of, the Underlying Index.

• The Fund is subject to large-capitalization risk, which is the risk that large-capitalization companies may grow slower than the overall economy and tend to go in and out of favor based on market and economic conditions.

• The Fund is subject to small- and mid-capitalization risk, which is the risk that returns from small- and mid-capitalization stocks may trail returns from the overall stock market. Historically, these stocks have been more volatile in price than the large-capitalization stocks.

• The Fund is subject to non-correlation risk, which is the risk that the securities held by the Fund will not provide investment performance tracking the Underlying Index.

• The Fund is subject to market price risk, which is the risk associated with the fact that the db-X Target Date Shares are listed on NYSE Arca and can be bought and sold in the secondary market at market prices. Although it is expected that the market price of the db-X Target Date Shares typically will approximate its NAV, there may be times when the market price and the NAV differ significantly. Thus, you may pay more than NAV when buying db-X Target Date Shares on the secondary market, and you may receive less than NAV when you sell db-X Target Date Shares.

• The Fund is subject to foreign securities risk, which is the risk that political and economic events unique to a foreign country or region will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of a Fund’s investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer’s home country.

• The Fund is subject to secondary market risk. Although the db-X Target Date Shares are listed for trading on NYSE Arca, it is possible that an active trading market may not be maintained. Trading of the db-X Target Date Shares on NYSE Arca may be halted if NYSE Arca officials deem such action appropriate, if the db-X Target Date Shares are delisted from NYSE Arca or if the activation of market-wide “circuit breakers” halts stock trading generally.

• The Fund is subject to REIT risk. The Fund’s investments in the securities of REITs may subject the Fund to the risks associated with the direct ownership of real estate. Also, when investing in REITs, in addition to the advisory fees and other expenses the Fund bears directly in connection with its own operations, the Fund will also bear its pro rata portion of the REITs management fees and other expenses. As such, the Fund’s shareholders would indirectly bear the expenses of the Fund and the REITs, some or all of which would be duplicative.

• The Fund is subject to fixed income risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the credit risk of individual issuers. Increases in interest rates can cause the prices of the Fund’s fixed income securities to decline, and the level of current income from a portfolio of fixed income securities may decline in certain interest rate environments.

• The Fund is subject to model risk, which is the risk that the allocation model used to calculate the Underlying Index will not maximize returns and/or minimize risks in accordance with the targeted time horizon for the Underlying Index. The Advisor cannot offer assurance that a particular allocation will be the appropriate allocation in all circumstances for every investor seeking a particular risk profile or time horizon.

The Fund’s Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Risk Lose Money [Text]

rr_RiskLoseMoney

The Fund’s Shares will change in value, and you could lose money by investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund. The bar chart that follows shows the annual total returns of the Fund for each full calendar year since the Fund commenced operations. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The table also shows how the Fund’s performance compares to the Zacks 2030 Lifecycle Index and that of a relevant broad-based securities index. Index returns do not reflect deductions of fees, expenses or taxes. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://dbxstrategicadvisors.db.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

http://dbxstrategicadvisors.db.com.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Total Returns

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

The Fund's year-to-date total return as of June 30, 2012, was 6.87%.

Best and Worst Quarter Returns

(for the periods reflected in the bar chart above)

	Return			Quarter/Year
Highest Return		15.69	%		2Q/2009
Lowest Return		(17.29	)%		4Q/2008

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended December 31, 2011

Index No Deduction for Fees, Expenses, Taxes [Text]

rr_IndexNoDeductionForFeesExpensesTaxes

Index returns do not reflect deductions of fees, expenses or taxes.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

db-X 2030 Target Date Fund | db-X 2030 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

Management Fee

rr_ManagementFeesOverAssets

0.65%

Other Expenses

rr_OtherExpensesOverAssets

0.53%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.18%

Fee Waivers and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.53%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement

rr_NetExpensesOverAssets

0.65%

^[1]

1 YEAR

rr_ExpenseExampleYear01

66

3 YEARS

rr_ExpenseExampleYear03

322

5 YEARS

rr_ExpenseExampleYear05

598

10 YEARS

rr_ExpenseExampleYear10

1,385

2008

rr_AnnualReturn2008

(33.69%)

2009

rr_AnnualReturn2009

21.05%

2010

rr_AnnualReturn2010

11.26%

2011

rr_AnnualReturn2011

2.65%

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund’s year-to-date total return as of June 30, 2012, was 6.87%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2012

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

6.87%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

15.69%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(17.29%)

1 Year

rr_AverageAnnualReturnYear01

2.65%

Since Inception

rr_AverageAnnualReturnSinceInception

(2.89%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2030 Target Date Fund | Return after taxes on distributions | db-X 2030 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

2.21%

Since Inception

rr_AverageAnnualReturnSinceInception

(3.32%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2030 Target Date Fund | Return after taxes on distributions and sale of Fund shares | db-X 2030 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

2.10%

Since Inception

rr_AverageAnnualReturnSinceInception

(2.59%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2030 Target Date Fund | Dow Jones U.S. Target 2030 Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(1.14%)

Since Inception

rr_AverageAnnualReturnSinceInception

(0.46%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2030 Target Date Fund | Zacks 2030 Lifecycle Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

3.69%

Since Inception

rr_AverageAnnualReturnSinceInception

(2.56%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

[1] DBX Strategic Advisors LLC (the "Advisor") has contractually agreed to pay Fund operating expenses (excluding, among other things, acquired fund fees and expenses, interest, taxes, brokerage commissions and extraordinary expenses) in order to limit Net Annual Operating Expenses for shares of the Fund to 0.65% of the Fund's average net assets (the "Expense Cap"). The Expense Cap will remain in effect until at least September 30, 2013 and may not be terminated by the Advisor before that time. The Advisor is permitted to be reimbursed for fee reductions and/or expense payments made in the prior three fiscal years.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

db-X Exchange-Traded Funds Inc.

Prospectus Date

rr_ProspectusDate

Sep. 28, 2012

db-X 2020 Target Date Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

db-X 2020 Target Date Fund

Summary Information

Objective [Heading]

rr_ObjectiveHeading

Investment Objective/Goal

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to track the performance, before fees and expenses, of the Zacks 2020 Lifecycle Index (the “Underlying Index”). The Fund’s investment objective is not fundamental and may be changed without shareholder approval. Shareholders will be given 60 days’ notice of any change in investment objective.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses you may pay if you buy and hold shares (“Shares” or “db-X Target Date Shares”) of the Fund. Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
    (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

September 30, 2013

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 55% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

55.00%

Expense Exchange Traded Fund Commissions [Text]

rr_ExpenseExchangeTradedFundCommissions

Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

As its primary strategy, the Fund will invest at least 90% of its assets in the component securities (the "Component Securities") of the Underlying Index, depositary receipts representing Component Securities and investments that have economic characteristics that are substantially identical to the economic characteristics of the Component Securities of the Underlying Index. Such securities may include domestic and international equity securities (including common stocks and real estate investment trusts) and fixed income securities (including bonds, treasury bills and notes, mortgage real estate investment trusts, cash, cash equivalents and short-term money market instruments). The domestic equity portion may include securities from all capitalization ranges. Only investment-grade fixed income securities are eligible for inclusion in the fixed income portion of the Underlying Index. The Fund employs a representative sampling indexing strategy in managing the portfolio by holding equity securities and fixed income securities that, in the aggregate, are intended to approximate the Underlying Index in terms of key characteristics, such as price/earnings ratio, earnings growth, maturity, duration, or dividend yield. The Fund will provide shareholders with at least 60 days' notice of any change in these policies.

The Underlying Index is comprised of securities from three broad asset classes: international equities, domestic equities, and fixed income, and is designed to represent a diversified portfolio of securities with the potential to outperform the Lipper Mixed-Asset Target 2020 Index, on a risk adjusted basis. The current allocation of the Underlying Index is approximately 13% in international equities, 42% in domestic equities and 45% in fixed income and will be systematically reconstituted and rebalanced annually, or quarterly when necessary, pursuant to a proprietary methodology developed by Zacks Investment Research ("Zacks"), the creator of the Underlying Index. The weighted average duration for the fixed income securities will, collectively, match the time to the target termination date, December 31, 2020. Following the target date, the duration for the fixed income securities will increase each year up to a maximum duration of five years. Upon reaching the target date, the Underlying Index will have approximately a 10% allocation to equity securities. Over the next five years, allocations shift from conservative to more moderately-conservative allocations, allowing for a larger exposure to equities than at the target date ("Moderately-Conservative Allocation"). The securities in the universe are selected using a proprietary methodology developed by Zacks. Investors should note that the allocations listed above, and in the chart below, are as of June 30, 2012.

The following chart shows how the investment glidepath for the Fund is expected to gradually shift to a Moderately-Conservative Allocation. The actual asset allocations of the Fund may differ from this chart. The Fund seeks to achieve its final target allocation five years following the target date.

Risk [Heading]

rr_RiskHeading

Principal Risks of Investing in the Fund

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

The following summarizes the principal risks that have been identified for the Fund.

• The Fund is subject to stock market risk, which is the risk that stock prices overall will decline over a given period of time. The Fund’s total return, like stock prices generally, will fluctuate within a wide range, so an investor could lose money over short or even long periods. Stock markets tend to be volatile, with periods of rising prices and periods of falling prices. The stock market has been subject to significant volatility recently which has increased the risks associated with an investment in the Fund.

• The Fund is subject to index risk, which is the risk that securities in the Underlying Index may under-perform fixed income investments or stock market investments that track other markets, segments or sectors. The Advisor does not actively manage the Fund and therefore does not attempt to analyze, quantify or control the risks associated with investing in securities included in, or representative of, the Underlying Index.

• The Fund is subject to large-capitalization risk, which is the risk that large-capitalization companies may grow slower than the overall economy and tend to go in and out of favor based on market and economic conditions.

• The Fund is subject to small- and mid-capitalization risk, which is the risk that returns from small- and mid-capitalization stocks may trail returns from the overall stock market. Historically, these stocks have been more volatile in price than the large-capitalization stocks.

• The Fund is subject to non-correlation risk, which is the risk that the securities held by the Fund will not provide investment performance tracking the Underlying Index.

• The Fund is subject to market price risk, which is the risk associated with the fact that the db-X Target Date Shares are listed on NYSE Arca and can be bought and sold in the secondary market at market prices. Although it is expected that the market price of the db-X Target Date Shares typically will approximate its NAV, there may be times when the market price and the NAV differ significantly. Thus, you may pay more than NAV when buying db-X Target Date Shares on the secondary market, and you may receive less than NAV when you sell db-X Target Date Shares.

• The Fund is subject to foreign securities risk, which is the risk that political and economic events unique to a foreign country or region will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of a Fund’s investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer’s home country.

• The Fund is subject to secondary market risk. Although the db-X Target Date Shares are listed for trading on NYSE Arca, it is possible that an active trading market may not be maintained. Trading of the db-X Target Date Shares on NYSE Arca may be halted if NYSE Arca officials deem such action appropriate, if the db-X Target Date Shares are delisted from NYSE Arca or if the activation of market-wide “circuit breakers” halts stock trading generally.

• The Fund is subject to REIT risk. The Fund’s investments in the securities of REITs may subject the Fund to the risks associated with the direct ownership of real estate. Also, when investing in REITs, in addition to the advisory fees and other expenses the Fund bears directly in connection with its own operations, the Fund will also bear its pro rata portion of the REITs management fees and other expenses. As such, the Fund’s shareholders would indirectly bear the expenses of the Fund and the REITs, some or all of which would be duplicative.

• The Fund is subject to fixed income risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the credit risk of individual issuers. Increases in interest rates can cause the prices of the Fund’s fixed income securities to decline, and the level of current income from a portfolio of fixed income securities may decline in certain interest rate environments.

• The Fund is subject to model risk, which is the risk that the allocation model used to calculate the Underlying Index will not maximize returns and/or minimize risks in accordance with the targeted time horizon for the Underlying Index. The Advisor cannot offer assurance that a particular allocation will be the appropriate allocation in all circumstances for every investor seeking a particular risk profile or time horizon.

The Fund’s Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Risk Lose Money [Text]

rr_RiskLoseMoney

The Fund’s Shares will change in value, and you could lose money by investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund. The bar chart that follows shows the annual total returns of the Fund for each full calendar year since the Fund commenced operations. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The table also shows how the Fund’s performance compares to the Zacks 2020 Lifecycle Index and that of a relevant broad-based securities index. Index returns do not reflect deductions of fees, expenses or taxes. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://dbxstrategicadvisors.db.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

http://dbxstrategicadvisors.db.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Total Returns

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

The Fund's year-to-date total return as of June 30, 2012, was 4.19%.

Best and Worst Quarter Returns

(for the periods reflected in the bar chart above)

	Return			Quarter/Year
Highest Return		11.61	%		2Q/2009
Lowest Return		(9.61	)%		4Q/2008

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended December 31, 2011

Index No Deduction for Fees, Expenses, Taxes [Text]

rr_IndexNoDeductionForFeesExpensesTaxes

Index returns do not reflect deductions of fees, expenses or taxes.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

db-X 2020 Target Date Fund | db-X 2020 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

Management Fee

rr_ManagementFeesOverAssets

0.65%

Other Expenses

rr_OtherExpensesOverAssets

0.51%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.16%

Fee Waivers and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.51%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement

rr_NetExpensesOverAssets

0.65%

^[1]

1 YEAR

rr_ExpenseExampleYear01

66

3 YEARS

rr_ExpenseExampleYear03

318

5 YEARS

rr_ExpenseExampleYear05

589

10 YEARS

rr_ExpenseExampleYear10

1,363

2008

rr_AnnualReturn2008

(23.49%)

2009

rr_AnnualReturn2009

17.38%

2010

rr_AnnualReturn2010

9.70%

2011

rr_AnnualReturn2011

0.88%

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund’s year-to-date total return as of June 30, 2012

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2012

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

4.19%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

11.61%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(9.61%)

1 Year

rr_AverageAnnualReturnYear01

0.88%

Since Inception

rr_AverageAnnualReturnSinceInception

(0.69%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2020 Target Date Fund | Return after taxes on distributions | db-X 2020 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

0.56%

Since Inception

rr_AverageAnnualReturnSinceInception

(1.29%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2020 Target Date Fund | Return after taxes on distributions and sale of Fund shares | db-X 2020 Target Date Shares

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

0.82%

Since Inception

rr_AverageAnnualReturnSinceInception

(1.87%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2020 Target Date Fund | Dow Jones U.S. Target 2020 Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

2.15%

Since Inception

rr_AverageAnnualReturnSinceInception

1.55%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

db-X 2020 Target Date Fund | Zacks 2020 Lifecycle Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

1.36%

Since Inception

rr_AverageAnnualReturnSinceInception

(0.46%)

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

[1] DBX Strategic Advisors LLC (the "Advisor") has contractually agreed to pay Fund operating expenses (excluding, among other things, acquired fund fees and expenses, interest, taxes, brokerage commissions and extraordinary expenses) in order to limit Net Annual Operating Expenses for shares of the Fund to 0.65% of the Fund's average net assets (the "Expense Cap"). The Expense Cap will remain in effect until at least September 30, 2013 and may not be terminated by the Advisor before that time. The Advisor is permitted to be reimbursed for fee reductions and/or expense payments made in the prior three fiscal years.

XML

db-X 2030 Target Date Fund

db-X 2030 Target Date Fund

Summary Information

Investment Objective/Goal

The Fund seeks to track the performance, before fees and expenses, of the Zacks 2030 Lifecycle Index (the “Underlying Index”). The Fund’s investment objective is not fundamental and may be changed without shareholder approval. Shareholders will be given 60 days’ notice of any change in investment objective.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares (“Shares” or “db-X Target Date Shares”) of the Fund. Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Annual Fund Operating Expenses
    (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		db-X 2030 Target Date Fund db-X 2030 Target Date Shares
Management Fee		0.65%
Other Expenses		0.53%
Total Annual Fund Operating Expenses		1.18%
Fee Waivers and Expense Reimbursement	[1]	(0.53%)
Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement	[1]	0.65%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	1 YEAR	3 YEARS	5 YEARS	10 YEARS
db-X 2030 Target Date Fund db-X 2030 Target Date Shares	66	322	598	1,385

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 40% of the average value of its portfolio.

Principal Investment Strategies

As its primary strategy, the Fund will invest at least 90% of its assets in the component securities (the "Component Securities") of the Underlying Index, depositary receipts representing Component Securities and investments that have economic characteristics that are substantially identical to the economic characteristics of the Component Securities of the Underlying Index. Such securities may include domestic and international equity securities (including common stocks and real estate investment trusts) and fixed income securities (including bonds, treasury bills and notes, mortgage real estate investment trusts, cash, cash equivalents and short-term money market instruments). The domestic equity portion may include securities from all capitalization ranges. Only investment-grade fixed income securities are eligible for inclusion in the fixed income portion of the Underlying Index. The Fund employs a representative sampling indexing strategy in managing the portfolio by holding equity securities and fixed income securities that, in the aggregate, are intended to approximate the Underlying Index in terms of key characteristics, such as price/earnings ratio, earnings growth, maturity, duration, or dividend yield. The Fund will provide shareholders with at least 60 days' notice of any change in these policies.

The Underlying Index is comprised of securities from three broad asset classes: international equities, domestic equities, and fixed income, and is designed to represent a diversified portfolio of securities with the potential to outperform the Lipper Mixed-Asset Target 2030 Index, on a risk adjusted basis. The current allocation of the Underlying Index is approximately 18% in international equities, 58% in domestic equities and 24% in fixed income and will be systematically reconstituted and rebalanced annually, or quarterly when necessary, pursuant to a proprietary methodology developed by Zacks Investment Research ("Zacks"), the creator of the Underlying Index. The weighted average duration for the fixed income securities will, collectively, match the time to the target termination date, December 31, 2030. Following the target date, the duration for the fixed income securities will increase each year up to a maximum duration of five years. Upon reaching the target date, the Underlying Index will have approximately a 10% allocation to equity securities. Over the next five years, allocations shift from conservative to more moderately-conservative allocations, allowing for a larger exposure to equities than at the target date ("Moderately-Conservative Allocation"). The securities in the universe are selected using a proprietary methodology developed by Zacks. Investors should note that the allocations listed above, and in the chart below, are as of June 30, 2012.

The following chart shows how the investment glidepath for the Fund is expected to gradually shift to a Moderately-Conservative Allocation. The actual asset allocations of the Fund may differ from this chart. The Fund seeks to achieve its final target allocation five years following the target date.

Principal Risks of Investing in the Fund

The following summarizes the principal risks that have been identified for the Fund.

• The Fund is subject to stock market risk, which is the risk that stock prices overall will decline over a given period of time. The Fund’s total return, like stock prices generally, will fluctuate within a wide range, so an investor could lose money over short or even long periods. Stock markets tend to be volatile, with periods of rising prices and periods of falling prices. The stock market has been subject to significant volatility recently which has increased the risks associated with an investment in the Fund.

• The Fund is subject to index risk, which is the risk that securities in the Underlying Index may under-perform fixed income investments or stock market investments that track other markets, segments or sectors. The Advisor does not actively manage the Fund and therefore does not attempt to analyze, quantify or control the risks associated with investing in securities included in, or representative of, the Underlying Index.

• The Fund is subject to large-capitalization risk, which is the risk that large-capitalization companies may grow slower than the overall economy and tend to go in and out of favor based on market and economic conditions.

• The Fund is subject to small- and mid-capitalization risk, which is the risk that returns from small- and mid-capitalization stocks may trail returns from the overall stock market. Historically, these stocks have been more volatile in price than the large-capitalization stocks.

• The Fund is subject to non-correlation risk, which is the risk that the securities held by the Fund will not provide investment performance tracking the Underlying Index.

• The Fund is subject to market price risk, which is the risk associated with the fact that the db-X Target Date Shares are listed on NYSE Arca and can be bought and sold in the secondary market at market prices. Although it is expected that the market price of the db-X Target Date Shares typically will approximate its NAV, there may be times when the market price and the NAV differ significantly. Thus, you may pay more than NAV when buying db-X Target Date Shares on the secondary market, and you may receive less than NAV when you sell db-X Target Date Shares.

• The Fund is subject to foreign securities risk, which is the risk that political and economic events unique to a foreign country or region will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of a Fund’s investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer’s home country.

• The Fund is subject to secondary market risk. Although the db-X Target Date Shares are listed for trading on NYSE Arca, it is possible that an active trading market may not be maintained. Trading of the db-X Target Date Shares on NYSE Arca may be halted if NYSE Arca officials deem such action appropriate, if the db-X Target Date Shares are delisted from NYSE Arca or if the activation of market-wide “circuit breakers” halts stock trading generally.

• The Fund is subject to REIT risk. The Fund’s investments in the securities of REITs may subject the Fund to the risks associated with the direct ownership of real estate. Also, when investing in REITs, in addition to the advisory fees and other expenses the Fund bears directly in connection with its own operations, the Fund will also bear its pro rata portion of the REITs management fees and other expenses. As such, the Fund’s shareholders would indirectly bear the expenses of the Fund and the REITs, some or all of which would be duplicative.

• The Fund is subject to fixed income risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the credit risk of individual issuers. Increases in interest rates can cause the prices of the Fund’s fixed income securities to decline, and the level of current income from a portfolio of fixed income securities may decline in certain interest rate environments.

• The Fund is subject to model risk, which is the risk that the allocation model used to calculate the Underlying Index will not maximize returns and/or minimize risks in accordance with the targeted time horizon for the Underlying Index. The Advisor cannot offer assurance that a particular allocation will be the appropriate allocation in all circumstances for every investor seeking a particular risk profile or time horizon.

The Fund’s Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Performance

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund. The bar chart that follows shows the annual total returns of the Fund for each full calendar year since the Fund commenced operations. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The table also shows how the Fund’s performance compares to the Zacks 2030 Lifecycle Index and that of a relevant broad-based securities index. Index returns do not reflect deductions of fees, expenses or taxes. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://dbxstrategicadvisors.db.com.

Total Returns

The Fund's year-to-date total return as of June 30, 2012, was 6.87%.

Best and Worst Quarter Returns

(for the periods reflected in the bar chart above)

	Return			Quarter/Year
Highest Return		15.69	%		2Q/2009
Lowest Return		(17.29	)%		4Q/2008

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Average Annual Total Returns for the periods ended December 31, 2011

Average Annual Total Returns db-X 2030 Target Date Fund	1 Year	Since Inception	Inception Date
db-X 2030 Target Date Shares	2.65%	(2.89%)	Oct. 01, 2007
db-X 2030 Target Date Shares Return after taxes on distributions	2.21%	(3.32%)	Oct. 01, 2007
db-X 2030 Target Date Shares Return after taxes on distributions and sale of Fund shares	2.10%	(2.59%)	Oct. 01, 2007
Dow Jones U.S. Target 2030 Index (reflects no deduction for fees, expenses or taxes)	(1.14%)	(0.46%)	Oct. 01, 2007
Zacks 2030 Lifecycle Index (reflects no deduction for fees, expenses or taxes)	3.69%	(2.56%)	Oct. 01, 2007

[1] DBX Strategic Advisors LLC (the "Advisor") has contractually agreed to pay Fund operating expenses (excluding, among other things, acquired fund fees and expenses, interest, taxes, brokerage commissions and extraordinary expenses) in order to limit Net Annual Operating Expenses for shares of the Fund to 0.65% of the Fund's average net assets (the "Expense Cap"). The Expense Cap will remain in effect until at least September 30, 2013 and may not be terminated by the Advisor before that time. The Advisor is permitted to be reimbursed for fee reductions and/or expense payments made in the prior three fiscal years.

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db-X In-Target Date Fund

db-X In-Target Date Fund

Summary Information

Investment Objective/Goal

The Fund seeks to track the performance, before fees and expenses, of the Zacks In-Target Lifecycle Index (the “Underlying Index”). The Fund’s investment objective is not fundamental and may be changed without shareholder approval. Shareholders will be given 60 days’ notice of any change in investment objective.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares (“Shares” or “db-X Target Date Shares”) of the Fund. Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Annual Fund Operating Expenses
    (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		db-X In-Target Date Fund db-X In-Target Date Shares
Management Fee		0.65%
Other Expenses		0.71%
Total Annual Fund Operating Expenses		1.36%
Fee Waivers and Expense Reimbursement	[1]	(0.71%)
Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement	[1]	0.65%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	1 YEAR	3 YEARS	5 YEARS	10 YEARS
db-X In-Target Date Fund db-X In-Target Date Shares	66	361	677	1,573

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 59% of the average value of its portfolio.

Principal Investment Strategies

As its primary strategy, the Fund will invest at least 90% of its assets in the component securities (the "Component Securities") of the Underlying Index, depositary receipts representing Component Securities and investments that have economic characteristics that are substantially identical to the economic characteristics of the Component Securities of the Underlying Index. Such securities may include domestic and international equity securities (including common stocks and real estate investment trusts) and fixed income securities (including bonds, treasury bills and notes, mortgage real estate investment trusts, cash, cash equivalents and short-term money market instruments). The domestic equity portion may include securities from all capitalization ranges. Only investment-grade fixed income securities are eligible for inclusion in the fixed income portion of the Underlying Index. The Fund employs a representative sampling indexing strategy in managing the portfolio by holding equity securities and fixed income securities that, in the aggregate, are intended to approximate the Underlying Index in terms of key characteristics, such as price/earnings ratio, earnings growth, maturity, duration, or dividend yield. The Fund will provide shareholders with at least 60 days' notice of any change in these policies.

The Underlying Index is comprised of securities from three broad asset classes: international equities, domestic equities, and fixed income, and is designed to represent a diversified portfolio of securities with the potential to outperform the Lipper Mixed-Target Allocation Conservative Funds Index, on a risk adjusted basis. The Underlying Index is designed for persons who are at or near their target date at the time of investment and has a current allocation of approximately 6% in international equities, 22% in domestic equities and 72% in fixed income and will be systematically reconstituted and rebalanced annually, or quarterly when necessary, pursuant to a proprietary methodology developed by Zacks Investment Research ("Zacks"), the creator of the Underlying Index. Since the inception of the Fund, the duration for the fixed income securities increase each year up to a maximum duration of five years. At inception, the Underlying Index had approximately a 10% allocation to equity securities. Over the next two years, allocations will shift from conservative to more moderately-conservative allocations, allowing for a larger exposure to equities than at inception ("Moderately-Conservative Allocation"). The securities in the universe are selected using a proprietary methodology developed by Zacks. Investors should note that the allocations listed above, and in the table below, are as of June 30, 2012.

The following chart shows how the investment glidepath for the Fund is expected to gradually shift to a Moderately-Conservative Allocation. The actual asset allocations of the Fund may differ from this chart. The Fund seeks to achieve its final target allocation five years following the target date.

Principal Risks of Investing in the Fund

The following summarizes the principal risks that have been identified for the Fund.

• The Fund is subject to stock market risk, which is the risk that stock prices overall will decline over a given period of time. The Fund’s total return, like stock prices generally, will fluctuate within a wide range, so an investor could lose money over short or even long periods. Stock markets tend to be volatile, with periods of rising prices and periods of falling prices. The stock market has been subject to significant volatility recently which has increased the risks associated with an investment in the Fund.

• The Fund is subject to index risk, which is the risk that securities in the Underlying Index may under-perform fixed income investments or stock market investments that track other markets, segments or sectors. The Advisor does not actively manage the Fund and therefore does not attempt to analyze, quantify or control the risks associated with investing in securities included in, or representative of, the Underlying Index.

• The Fund is subject to large-capitalization risk, which is the risk that large-capitalization companies may grow slower than the overall economy and tend to go in and out of favor based on market and economic conditions.

• The Fund is subject to small- and mid-capitalization risk, which is the risk that returns from small- and mid-capitalization stocks may trail returns from the overall stock market. Historically, these stocks have been more volatile in price than the large-capitalization stocks.

• The Fund is subject to non-correlation risk, which is the risk that the securities held by the Fund will not provide investment performance tracking the Underlying Index.

• The Fund is subject to market price risk, which is the risk associated with the fact that the db-X Target Date Shares are listed on NYSE Arca and can be bought and sold in the secondary market at market prices. Although it is expected that the market price of the db-X Target Date Shares typically will approximate its NAV, there may be times when the market price and the NAV differ significantly. Thus, you may pay more than NAV when buying db-X Target Date Shares on the secondary market, and you may receive less than NAV when you sell db-X Target Date Shares.

• The Fund is subject to foreign securities risk, which is the risk that political and economic events unique to a foreign country or region will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of a Fund’s investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer’s home country.

• The Fund is subject to secondary market risk. Although the db-X Target Date Shares are listed for trading on NYSE Arca, it is possible that an active trading market may not be maintained. Trading of the db-X Target Date Shares on NYSE Arca may be halted if NYSE Arca officials deem such action appropriate, if the db-X Target Date Shares are delisted from NYSE Arca or if the activation of market-wide “circuit breakers” halts stock trading generally.

• The Fund is subject to REIT risk. The Fund’s investments in the securities of REITs may subject the Fund to the risks associated with the direct ownership of real estate. Also, when investing in REITs, in addition to the advisory fees and other expenses the Fund bears directly in connection with its own operations, the Fund will also bear its pro rata portion of the REITs management fees and other expenses. As such, the Fund’s shareholders would indirectly bear the expenses of the Fund and the REITs, some or all of which would be duplicative.

• The Fund is subject to fixed income risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the credit risk of individual issuers. Increases in interest rates can cause the prices of the Fund’s fixed income securities to decline, and the level of current income from a portfolio of fixed income securities may decline in certain interest rate environments.

• The Fund is subject to model risk, which is the risk that the allocation model used to calculate the Underlying Index will not maximize returns and/or minimize risks in accordance with the targeted time horizon for the Underlying Index. The Advisor cannot offer assurance that a particular allocation will be the appropriate allocation in all circumstances for every investor seeking a particular risk profile or time horizon.

The Fund’s Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Performance

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund. The bar chart that follows shows the annual total returns of the Fund for each full calendar year since the Fund commenced operations. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The table also shows how the Fund’s performance compares to the Zacks In-Target Lifecycle Index and that of a relevant broad-based securities index. Index returns do not reflect deductions of fees, expenses or taxes. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://dbxstrategicadvisors.db.com.

Total Returns

The Fund's year-to-date total return as of June 30, 2012, was 2.06%.

Best and Worst Quarter Returns

(for the periods reflected in the bar chart above)

	Return			Quarter/Year
Highest Return		3.48	%		3Q/2009
Lowest Return		(4.51	)%		3Q/2011

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Average Annual Total Returns for the periods ended December 31, 2011

Average Annual Total Returns db-X In-Target Date Fund	1 Year	Since Inception	Inception Date
db-X In-Target Date Shares	(0.04%)	2.14%	Oct. 01, 2007
db-X In-Target Date Shares Return after taxes on distributions	(0.18%)	1.65%	Oct. 01, 2007
db-X In-Target Date Shares Return after taxes on distributions and sale of Fund shares	(0.08%)	1.56%	Oct. 01, 2007
Dow Jones U.S. Target Today Index (reflects no deduction for fees, expenses or taxes)	5.49%	5.24%	Oct. 01, 2007
Zacks In-Target Lifecycle Index (reflects no deduction for fees, expenses or taxes)	0.56%	2.27%	Oct. 01, 2007

[1] DBX Strategic Advisors LLC (the "Advisor") has contractually agreed to pay Fund operating expenses (excluding, among other things, acquired fund fees and expenses, interest, taxes, brokerage commissions and extraordinary expenses) in order to limit Net Annual Operating Expenses for shares of the Fund to 0.65% of the Fund's average net assets (the "Expense Cap"). The Expense Cap will remain in effect until at least September 30, 2013 and may not be terminated by the Advisor before that time. The Advisor is permitted to be reimbursed for fee reductions and/or expense payments made in the prior three fiscal years.

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db-X 2040 Target Date Fund

db-X 2040 Target Date Fund

Summary Information

Investment Objective/Goal

The Fund seeks to track the performance, before fees and expenses, of the Zacks 2040 Lifecycle Index (the “Underlying Index”). The Fund’s investment objective is not fundamental and may be changed without shareholder approval. Shareholders will be given 60 days’ notice of any change in investment objective.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares (“Shares” or “db-X Target Date Shares”) of the Fund. Investors may pay brokerage commissions on their purchases and sales of Shares, which are not reflected in the table or the example below.

Annual Fund Operating Expenses
    (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		db-X 2040 Target Date Fund db-X 2040 Target Date Shares
Management Fee		0.65%
Other Expenses		0.55%
Total Annual Fund Operating Expenses		1.20%
Fee Waivers and Expense Reimbursement	[1]	(0.55%)
Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement	[1]	0.65%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	1 YEAR	3 YEARS	5 YEARS	10 YEARS
db-X 2040 Target Date Fund db-X 2040 Target Date Shares	66	326	607	1,406

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Total Annual Fund Operating Expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 34% of the average value of its portfolio.

Principal Investment Strategies

As its primary strategy, the Fund will invest at least 90% of its assets in the component securities (the "Component Securities") of the Underlying Index, depositary receipts representing Component Securities and investments that have economic characteristics that are substantially identical to the economic characteristics of the Component Securities of the Underlying Index. Such securities may include domestic and international equity securities (including common stocks and real estate investment trusts) and fixed income securities (including bonds, treasury bills and notes, mortgage real estate investment trusts, cash, cash equivalents and short-term money market instruments). The domestic equity portion may include securities from all capitalization ranges. Only investment-grade fixed income securities are eligible for inclusion in the fixed income portion of the Underlying Index. The Fund employs a representative sampling indexing strategy in managing the portfolio by holding equity securities and fixed income securities that, in the aggregate, are intended to approximate the Underlying Index in terms of key characteristics, such as price/earnings ratio, earnings growth, maturity, duration, or dividend yield. The Fund will provide shareholders with at least 60 days' notice of any change in these policies.

The Underlying Index is comprised of securities from three broad asset classes: international equities, domestic equities, and fixed income, and is designed to represent a diversified portfolio of securities with the potential to outperform the Lipper Mixed-Asset Target 2030+ Index, on a risk adjusted basis. The current allocation of the Underlying Index is approximately 21% in international equities, 72% in domestic equities and 7% in fixed income and will be systematically reconstituted and rebalanced annually, or quarterly when necessary, pursuant to a proprietary methodology developed by Zacks Investment Research ("Zacks"), the creator of the Underlying Index. The weighted average duration for the fixed income securities will, collectively, approximate as nearly as possible the time to the target termination date, December 31, 2040. Following the target date, the duration for the fixed income securities will increase each year up to a maximum duration of five years. Upon reaching the target date, the Underlying Index will have approximately a 10% allocation to equity securities. Over the next five years, allocations shift from conservative to more moderately-conservative allocations, allowing for a larger exposure to equities than at the target date ("Moderately-Conservative Allocation"). The securities in the universe are selected using a proprietary methodology developed by Zacks. Investors should note that the allocations listed above, and in the chart below, are as of June 30, 2012.

The following chart shows how the investment glidepath for the Fund is expected to gradually shift to a Moderately-Conservative Allocation. The actual asset allocations of the Fund may differ from this chart. The Fund seeks to achieve its final target allocation five years following the target date.

Principal Risks of Investing in the Fund

The following summarizes the principal risks that have been identified for the Fund.

• The Fund is subject to stock market risk, which is the risk that stock prices overall will decline over a given period of time. The Fund’s total return, like stock prices generally, will fluctuate within a wide range, so an investor could lose money over short or even long periods. Stock markets tend to be volatile, with periods of rising prices and periods of falling prices. The stock market has been subject to significant volatility recently which has increased the risks associated with an investment in the Fund.

• The Fund is subject to index risk, which is the risk that securities in the Underlying Index may under-perform fixed income investments or stock market investments that track other markets, segments or sectors. The Advisor does not actively manage the Fund and therefore does not attempt to analyze, quantify or control the risks associated with investing in securities included in, or representative of, the Underlying Index.

• The Fund is subject to large-capitalization risk, which is the risk that large-capitalization companies may grow slower than the overall economy and tend to go in and out of favor based on market and economic conditions.

• The Fund is subject to small- and mid-capitalization risk, which is the risk that returns from small- and mid-capitalization stocks may trail returns from the overall stock market. Historically, these stocks have been more volatile in price than the large-capitalization stocks.

• The Fund is subject to non-correlation risk, which is the risk that the securities held by the Fund will not provide investment performance tracking the Underlying Index.

• The Fund is subject to market price risk, which is the risk associated with the fact that the db-X Target Date Shares are listed on NYSE Arca and can be bought and sold in the secondary market at market prices. Although it is expected that the market price of the db-X Target Date Shares typically will approximate its NAV, there may be times when the market price and the NAV differ significantly. Thus, you may pay more than NAV when buying db-X Target Date Shares on the secondary market, and you may receive less than NAV when you sell db-X Target Date Shares.

• The Fund is subject to foreign securities risk, which is the risk that political and economic events unique to a foreign country or region will affect those markets and their issuers. These events will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign countries are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of a Fund’s investments. These currency movements may happen separately from and in response to events that do not otherwise affect the value of the security in the issuer’s home country.

• The Fund is subject to secondary market risk. Although the db-X Target Date Shares are listed for trading on NYSE Arca, it is possible that an active trading market may not be maintained. Trading of the db-X Target Date Shares on NYSE Arca may be halted if NYSE Arca officials deem such action appropriate, if the db-X Target Date Shares are delisted from NYSE Arca or if the activation of market-wide “circuit breakers” halts stock trading generally.

• The Fund is subject to REIT risk. The Fund’s investments in the securities of REITs may subject the Fund to the risks associated with the direct ownership of real estate. Also, when investing in REITs, in addition to the advisory fees and other expenses the Fund bears directly in connection with its own operations, the Fund will also bear its pro rata portion of the REITs management fees and other expenses. As such, the Fund’s shareholders would indirectly bear the expenses of the Fund and the REITs, some or all of which would be duplicative.

• The Fund is subject to fixed income risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the credit risk of individual issuers. Increases in interest rates can cause the prices of the Fund’s fixed income securities to decline, and the level of current income from a portfolio of fixed income securities may decline in certain interest rate environments.

• The Fund is subject to model risk, which is the risk that the allocation model used to calculate the Underlying Index will not maximize returns and/or minimize risks in accordance with the targeted time horizon for the Underlying Index. The Advisor cannot offer assurance that a particular allocation will be the appropriate allocation in all circumstances for every investor seeking a particular risk profile or time horizon.

The Fund’s Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the FDIC or any other government agency.

Performance

Historical Fund performance, which varies over time, can provide an indication of the risks of investing in the Fund. The bar chart that follows shows the annual total returns of the Fund for each full calendar year since the Fund commenced operations. The table that follows the bar chart shows the Fund’s average annual total returns, both before and after taxes. The table also shows how the Fund’s performance compares to the Zacks 2040 Lifecycle Index and that of a relevant broad-based securities index. Index returns do not reflect deductions of fees, expenses or taxes. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at http://dbxstrategicadvisors.db.com.

Total Returns

The Fund's year-to-date total return as of June 30, 2012, was 7.40%.

Best and Worst Quarter Returns

(for the periods reflected in the bar chart above)

	Return			Quarter/Year
Highest Return		17.67	%		2Q/2009
Lowest Return		(21.01	)%		4Q/2008

After-tax returns in the table below are calculated using the highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Average Annual Total Returns for the periods ended December 31, 2011

Average Annual Total Returns db-X 2040 Target Date Fund	1 Year	Since Inception	Inception Date
db-X 2040 Target Date Shares	(0.37%)	(4.22%)	Oct. 01, 2007
db-X 2040 Target Date Shares Return after taxes on distributions	(0.66%)	(4.52%)	Oct. 01, 2007
db-X 2040 Target Date Shares Return after taxes on distributions and sale of Fund shares	0.13%	(3.60%)	Oct. 01, 2007
Dow Jones U.S. Target 2040 Index (reflects no deduction for fees, expenses or taxes)	(3.57%)	(1.61%)	Oct. 01, 2007
Zacks 2040 Lifecycle Index (reflects no deduction for fees, expenses or taxes)	(0.02%)	(4.07%)	Oct. 01, 2007

[1] DBX Strategic Advisors LLC (the "Advisor") has contractually agreed to pay Fund operating expenses (excluding, among other things, acquired fund fees and expenses, interest, taxes, brokerage commissions and extraordinary expenses) in order to limit Net Annual Operating Expenses for shares of the Fund to 0.65% of the Fund's average net assets (the "Expense Cap"). The Expense Cap will remain in effect until at least September 30, 2013 and may not be terminated by the Advisor before that time. The Advisor is permitted to be reimbursed for fee reductions and/or expense payments made in the prior three fiscal years.