485BPOS

Filed with the Securities and Exchange Commission on February 15, 2013

Securities Act of 1933 File No. 002-52242

Investment Company Act of 1940 File No. 811-02538

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. 105

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 x

Amendment No. 100

(Check appropriate box or boxes.)

TOUCHSTONE INVESTMENT TRUST

(Exact name of Registrant as Specified in Charter)

303 Broadway, Suite 1100, Cincinnati, Ohio 45202

(Address of Principal Executive Offices) Zip Code

Registrant’s Telephone Number, including Area Code (513) 878-4066

Jill T. McGruder, 303 Broadway, Cincinnati, OH 45202

(Name and Address of Agent for Service)

With Copies to:

John M. Ford, Esq.

Pepper Hamilton LLP

3000 Two Logan Square

Philadelphia, PA 19103

It is proposed that this filing will become effective

(check appropriate box)

x immediately upon filing pursuant to paragraph (b)

o on (date) pursuant to paragraph (b)

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

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

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

o on (date) pursuant to paragraph (a)(2) of rule 485. If appropriate, check the following box:

o This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirement for effectiveness of this Post-Effective Amendment No. 105 to its Registration Statement on Form N-1A under Rule 485(b) under the Securities Act of 1933, as amended, and has duly caused this Post-Effective Amendment No. 105 to its Registration Statement on Form N-1A to be signed on its behalf by the undersigned, duly authorized, in the City of Cincinnati, and State of Ohio on the 15th day of February 2012.

TOUCHSTONE INVESTMENT TRUST
By:	_/s/Jill T. McGruder_____________
	T. McGruder
	President

Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 105 to the Registrant’s Registration Statement on Form N-1A has been signed below by the following persons in the capacities and on the dates indicated.

*	Trustee	February 15, 2012
Phillip R. Cox
*	Trustee	February 15, 2012
H. Jerome Lerner
*	Trustee	February 15, 2012
John P. Zanotti
*	Trustee	February 15, 2012
Donald C. Siekmann
*	Trustee	February 15, 2012
Susan J. Hickenlooper
/s/Jill T. McGruder
	Trustee and President	February 15, 2012
Jill T. McGruder
/s/Terrie A. Wiedenheft
	Controller, Treasurer	February 15, 2012
Terrie A. Wiedenheft	and Principal Financial
	Officer

*By:	_/s/Terrie A. Wiedenheft__________________
	Terrie A. Wiedenheft
	(Attorney-in-Fact Pursuant to Power of Attorney)

EXHIBIT INDEX

EXHIBIT NO.	DESCRIPTION OF EXHIBIT
EX-102.INS	XBRL Instance Document
EX-102.SCH	XBRL Taxonomy Extension Schema Document
EX-102.CAL	XBRL Taxonomy Extension Calculation Linkbase
EX-102.DEF	XBRL Taxonomy Extension Definition Linkbase
EX-102.LAB	XBRL Taxonomy Extension Labels Linkbase
EX-102.PRE	XBRL Taxonomy Extension Presentation Linkbase

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Prospectus Date

rr_ProspectusDate

Jan. 30, 2013

Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return, Heading

rr_RiskReturnHeading

TOUCHSTONE CORE BOND FUND SUMMARY

Investment Objective, Heading

rr_ObjectiveHeading

The Fund’s Investment Goal

Investment Objective, Primary

rr_ObjectivePrimaryTextBlock

The Touchstone Core Bond Fund (the “Fund”) seeks to provide as high a level of current income as is consistent with the preservation of capital.

Investment Objective, Secondary

rr_ObjectiveSecondaryTextBlock

Capital appreciation is a secondary goal.

Expense, Heading

rr_ExpenseHeading

The Fund’s Fees and Expenses

Expense, Narrative

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.  You may qualify for sales charge discounts for Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 or more in the Touchstone Funds.  More information about these and other discounts is available from your financial professional and in the section entitled “Choosing a Class of Shares” in the Fund’s prospectus on page 25 and in the Fund’s Statement of Additional Information (“SAI”) on page 46.

Shareholder Fees, Caption

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses, Caption

rr_OperatingExpensesCaption

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

Portfolio Turnover, Heading

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio).  A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account.  These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.  During the most recent fiscal year, the Fund’s portfolio turnover rate was 525% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

525.00%

Expense Breakpoint, Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts for Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 or more in the Touchstone Funds.

Expenses Restated to Reflect Current

rr_ExpensesRestatedToReflectCurrent

Expenses shown above have been restated to reflect a change in the Fund’s contractual fee waiver and will differ from the expenses reflected in the Fund’s Annual Report for the fiscal year ended September 30, 2012.

Expense Example, Heading

rr_ExpenseExampleHeading

Example

Expense Example, Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The example assumes that you invest $10,000 in the Fund for the time periods indicated and then, except as indicated, redeem 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 (reflecting any contractual fee waivers).  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example by, Year, Caption

rr_ExpenseExampleByYearCaption

Assuming Redemption at End of Period

Expense Example, No Redemption, By Year, Caption

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming No Redemption

Investment Strategy, Heading

rr_StrategyHeading

The Fund’s Principal Investment Strategies

Investment Strategy, Narrative

rr_StrategyNarrativeTextBlock

The Fund normally invests at least 80% of its net assets (including borrowings for investment purposes) in bonds.  Bonds include mortgage-related securities, asset-backed securities, government securities, and corporate debt securities.  Shareholders will be provided with at least 60 days’ prior notice of any change in this policy.  The Fund expects to have an average effective maturity of between 5 and 15 years.  The Fund invests at least 80% of its total assets in investment-grade debt securities, but may invest up to 20% of its total assets in non-investment-grade debt securities rated less than a BBB-/Baa3 rating by Moody’s Investors Service, Standard & Poor’s Ratings Group or Fitch Ratings.  Non-investment-grade debt securities are often referred to as “junk bonds” and are considered speculative.

In deciding what securities to buy and sell for the Fund, the sub-advisor, Fort Washington Investment Advisors, Inc. (“Fort Washington”), analyzes the overall investment opportunities and risks in different sectors of the debt securities markets by focusing on maximizing total return while reducing volatility of the Fund’s portfolio.  Fort Washington follows a disciplined sector allocation process in order to build a broadly diversified portfolio of bonds.

The Fund may engage in frequent and active trading as part of its principal investment strategy.

Strategy Portfolio Concentration

rr_StrategyPortfolioConcentration

The Fund normally invests at least 80% of its net assets (including borrowings for investment purposes) in bonds.

Risk, Heading

rr_RiskHeading

The Principal Risks

Risk, Narrative

rr_RiskNarrativeTextBlock

The Fund’s share price will fluctuate. You could lose money on your investment in the Fund and the Fund could also return less than other investments.  The Fund is subject to the principal risks summarized below.

Credit Risk:  The securities in the Fund’s portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions.  This could cause an issuer to fail to make timely payments of principal or interest, when due.  This may cause the issuer’s securities to decline in value.

Prepayment Risk: The risk that a debt security may be paid off and proceeds invested earlier than anticipated. Prepayment risk is more prevalent during periods of falling interest rates.

Interest Rate Risk: As interest rates rise, the value of fixed income securities the Fund owns will likely decrease.  Longer-term securities are generally more volatile, so the longer the average maturity or duration of these securities, the greater their price risk.  Duration is a measure of the expected life, taking into account any prepayment or call features of the security, of a fixed income security that is used to determine the price sensitivity of the security for a given change in interest rates.  Specifically, duration is the change in the value of a fixed income security that will result from a 1% change in interest rates, and generally is stated in years.  Maturity, on the other hand, is the date on which a fixed income security becomes due for payment of principal.

Investment-Grade Debt Securities Risk:  Investment-grade debt securities may be downgraded by a Nationally Recognized Statistical Rating Organization (“NRSRO”) to below-investment-grade status, which would increase the risk of holding these securities or a rating may become stale in that it fails to reflect changes to an issuer’s financial condition. Investment-grade debt securities rated in the lowest rating category by an NRSRO involve a higher degree of risk than fixed-income securities in the higher-rating categories.  While such securities are considered investment-grade quality and are deemed to have adequate capacity for payment of principal and interest, such securities lack outstanding investment characteristics and have speculative characteristics as well.  For example, changes in economic conditions or other circumstances are more likely to lead to a weakened capacity to make principal and interest payments than is the case with higher-grade securities.

Mortgage-Backed Securities Risk:  Mortgage-backed securities are fixed income securities representing an interest in a pool of underlying mortgage loans. Mortgage-backed securities are sensitive to changes in interest rates, but may respond to these changes differently from other fixed income securities due to the possibility of prepayment of the underlying mortgage loans.  As a result, it may not be possible to determine in advance the actual maturity date or average life of a mortgage-backed security.  Rising interest rates tend to discourage refinancings, with the result that the average life and volatility of the security will increase, exacerbating its decrease in market price.  When interest rates fall, however, mortgage-backed securities may not gain as much in market value because of the expectation of additional mortgage prepayments that must be reinvested at lower interest rates.  Prepayment risk may make it difficult to calculate the average duration of the Fund’s mortgage-backed securities which in turn would make it difficult to assess the interest rate risk of the Fund.  An unexpectedly high rate of defaults on the mortgages held by a mortgage pool may adversely affect the value of mortgage-backed securities and could result in losses to the Fund.  The risk of such defaults is generally higher in the cases of mortgage pools that include subprime mortgages.  Subprime mortgages refer to loans made to borrowers with weakened credit histories or with lower capacity to make timely payments on their mortgages.  Collateralized mortgage obligations are more volatile and may be more sensitive to the rate of prepayments than other mortgage-related securities.

Asset-Backed Securities Risk:  Asset-backed securities are fixed income securities backed by other assets such as credit card, automobile or consumer loan receivables, retail installment loans, or participations in pools of leases.  Credit support for these securities may be based on the underlying assets and/or provided through credit enhancements by a third party. Even with a credit enhancement by a third party, there is still risk of loss.  There could be inadequate collateral or no collateral for asset-backed securities.  The values of these securities are sensitive to changes in the credit quality of the underlying collateral, the credit strength of the credit enhancement, changes in interest rates and, at times, the financial condition of the issuer.  Some asset-backed securities also may receive prepayments that can change the securities’ effective durations.

Non-Investment-Grade Debt Securities Risk:  Non-investment-grade debt securities are sometimes referred to as “junk bonds” and are considered speculative with respect to their issuers’ ability to make payments of interest and principal.  There is a high risk that the Fund could suffer a loss from investments in non-investment-grade debt securities caused by the default of an issuer of such securities.  Part of the reason for this high risk is that, in the event of a default or bankruptcy, holders of non-investment-grade debt securities generally will not receive payments until the holders of all other debt have been paid.  In addition, the market for non-investment-grade debt securities has historically had more frequent and larger price changes than the markets for other securities.  Non-investment-grade debt securities can also be more difficult to sell for good value.

Management Risk: Touchstone Advisors, Inc., the Fund’s advisor (the “Advisor”), engages one or more sub-advisors to make investment decisions on its behalf for a portion or all of the Fund.  There is a risk that the Advisor may be unable to identify and retain sub-advisors who achieve superior investment returns relative to other similar sub-advisors.  The value of your investment may decrease if the sub-advisor’s judgment about the attractiveness, value or market trends affecting a particular security, issuer, industry or sector or about market movements is incorrect.

Portfolio Turnover Risk:  Frequent and active trading may result in greater expenses to the Fund and may generate more taxable short-term gains for shareholders, which may lower the Fund’s performance.

U.S. Government Agencies Securities Risk:  Certain U.S. government agency securities are backed by the right of the issuer to borrow from the U.S. Treasury while others are supported only by the credit of the issuer or instrumentality. While the U.S. government is able to provide financial support to U.S. government-sponsored agencies or instrumentalities, no assurance can be given that it will always do so.  Such securities are neither issued nor guaranteed by the U.S. Treasury.

As with any mutual fund, there is no guarantee that the Fund will achieve its investment goal.

Risk, Lose Money

rr_RiskLoseMoney

The Fund's share price will fluctuate. You could lose money on your investment in the Fund and the Fund could also return less than other investments.

Bar Chart and Performance Table, Heading

rr_BarChartAndPerformanceTableHeading

The Fund’s Performance

Performance, Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual total returns for 1 year, 5 years, and 10 years compare with the Barclays Capital U.S. Aggregate Bond Index.  The bar chart does not reflect any sales charges, which would reduce your return.  The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future.  Updated performance is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.

Performance, Information Illustrates Variability of Returns

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual total returns for 1 year, 5 years, and 10 years compare with the Barclays Capital U.S. Aggregate Bond Index.

Performance, Availability Phone Number

rr_PerformanceAvailabilityPhone

1.800.543.0407

Performance, Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

www.TouchstoneInvestments.com

Performance, Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future.

Bar Chart, Heading

rr_BarChartHeading

Core Bond Fund — Class A Total Returns as of December 31

Bar Chart, Does Not Reflect Sales Loads

rr_BarChartDoesNotReflectSalesLoads

The bar chart does not reflect any sales charges, which would reduce your return.

Bar Chart, Closing

rr_BarChartClosingTextBlock

Best Quarter: 3rd Quarter 2009  +7.14%        Worst Quarter:  3rd Quarter 2008  -2.68%

The year-to-date return for the Fund’s Class A shares as of December 31, 2012 is 5.75%.

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

reflects no deductions for fees, expenses or taxes

Performance Table, Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical 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

Your actual after-tax returns may differ from those shown and depend on your tax situation.  The after-tax returns do not apply to shares held in an IRA, 401(k), or other tax-deferred account.

Performance Table, One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

The after-tax returns shown in the table are for Class A shares only.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.  Your actual after-tax returns may differ from those shown and depend on your tax situation.  The after-tax returns do not apply to shares held in an IRA, 401(k), or other tax-deferred account.  The after-tax returns shown in the table are for Class A shares only.  The after-tax returns for other classes of shares offered by the Fund will differ from the Class A after-tax returns.

Average Annual Returns, Caption

rr_AverageAnnualReturnCaption

Average Annual Total Returns For the period ended December 31, 2012

Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Barclays Capital U.S. Aggregate Bond Index

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Barclays Capital U.S. Aggregate Bond Index (reflects no deductions for fees, expenses or taxes)

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

4.21%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

5.95%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

5.18%

Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.75%

Maximum Deferred Sales Charge (as a percentage of original purchase price or the amount redeemed, whichever is less)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Wire Redemption Fee

rr_RedemptionFee

15

Management Fees

rr_ManagementFeesOverAssets

0.49%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

^[1]

Other Expenses

rr_OtherExpensesOverAssets

0.49%

Acquired Fund Fees and Expenses (AFFE)

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.24%

^[2]

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.40%

^[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.84%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-04-16

Expense Breakpoint, Minimum Investment Required Amount

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

50,000

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

557

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

812

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

1,087

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

1,870

Annual Return 2003

rr_AnnualReturn2003

3.25%

Annual Return 2004

rr_AnnualReturn2004

3.03%

Annual Return 2005

rr_AnnualReturn2005

1.58%

Annual Return 2006

rr_AnnualReturn2006

3.84%

Annual Return 2007

rr_AnnualReturn2007

5.36%

Annual Return 2008

rr_AnnualReturn2008

(5.19%)

Annual Return 2009

rr_AnnualReturn2009

18.02%

Annual Return 2010

rr_AnnualReturn2010

7.72%

Annual Return 2011

rr_AnnualReturn2011

8.17%

Annual Return 2012

rr_AnnualReturn2012

5.75%

Year to Date Return, Label

rr_YearToDateReturnLabel

year-to-date return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Dec. 31, 2012

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

5.75%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

7.14%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(2.68%)

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class A Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

0.71%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

5.61%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

4.50%

Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Class A | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class A Return After Taxes on Distributions

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

(0.78%)

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

3.99%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

2.93%

Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Class A | After Taxes on Distributions and Sales

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class A Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

0.46%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

3.82%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

2.90%

Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Class C

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (as a percentage of original purchase price or the amount redeemed, whichever is less)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Wire Redemption Fee

rr_RedemptionFee

15

Management Fees

rr_ManagementFeesOverAssets

0.49%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other Expenses

rr_OtherExpensesOverAssets

0.61%

Acquired Fund Fees and Expenses (AFFE)

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.11%

^[2]

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.52%

^[3],[4]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.59%

^[4]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-04-16

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

262

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

611

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

1,086

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

2,400

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

162

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

611

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

1,086

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

2,400

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class C Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

3.99%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

5.84%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

4.23%

Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Class Y

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (as a percentage of original purchase price or the amount redeemed, whichever is less)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Wire Redemption Fee

rr_RedemptionFee

15

Management Fees

rr_ManagementFeesOverAssets

0.49%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.48%

Acquired Fund Fees and Expenses (AFFE)

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.98%

^[2]

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.39%

^[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.59%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-04-16

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

60

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

273

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

504

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

1,166

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class Y Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

5.93%

^[5]

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

6.67%

^[5]

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

5.02%

^[5]

Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (as a percentage of original purchase price or the amount redeemed, whichever is less)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Wire Redemption Fee

rr_RedemptionFee

15

Management Fees

rr_ManagementFeesOverAssets

0.49%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.62%

Acquired Fund Fees and Expenses (AFFE)

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.12%

^[2]

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.61%

^[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.51%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-04-16

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

52

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

295

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

558

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

1,308

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Institutional Class Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

5.99%

^[5]

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

6.68%

^[5]

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

5.03%

^[5]

[1] The Fund is authorized under its 12b-1 plan for Class A shares to pay an annual fee of up to 0.35% of its average daily net assets for the sale and distribution of shares. The Fund currently intends to limit the amount of 12b-1 fees for Class A shares to a maximum of 0.25% per annum of the average daily net assets of Class A shares.

[2] The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets that are included in the Fund's Annual Report dated September 30, 2012, which reflects operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.

[3] Touchstone Advisors, Inc. and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.83%, 1.58%, 0.58%, and 0.50% for Class A shares, Class C shares, Class Y Shares, and Institutional Class Shares respectively. This expense limitation will remain in effect until at least April 16, 2014, but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. The terms of Touchstone Advisors' contractual waiver agreement provide that Touchstone Advisors is entitled to recover, subject to approval by the Fund's Board of Trustees, such amounts waived or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's operating expenses are below the expense limitation amount. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's prospectus for more information.

[4] Expenses shown above have been restated to reflect a change in the Fund's contractual fee waiver and will differ from the expenses reflected in the Fund's Annual Report for the fiscal year ended September 30, 2012.

[5] Class Y shares and Institutional Class shares performance was calculated using the historical performance of Class A shares for the periods prior to April 16, 2012. Class Y shares and Institutional Class shares commenced operations on April 16, 2012.

XML

Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund

TOUCHSTONE CORE BOND FUND SUMMARY

The Fund’s Investment Goal

The Touchstone Core Bond Fund (the “Fund”) seeks to provide as high a level of current income as is consistent with the preservation of capital.

Capital appreciation is a secondary goal.

The Fund’s Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.  You may qualify for sales charge discounts for Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 or more in the Touchstone Funds.  More information about these and other discounts is available from your financial professional and in the section entitled “Choosing a Class of Shares” in the Fund’s prospectus on page 25 and in the Fund’s Statement of Additional Information (“SAI”) on page 46.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Touchstone Core Bond Fund (USD $)	Class A	Class C	Class Y	Institutional
Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)	4.75%	none	none	none
Maximum Deferred Sales Charge (as a percentage of original purchase price or the amount redeemed, whichever is less)	none	1.00%	none	none
Wire Redemption Fee	15	15	15	15

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

Annual Fund Operating Expenses Touchstone Core Bond Fund		Class A		Class C		Class Y	Institutional
Management Fees		0.49%		0.49%		0.49%	0.49%
Distribution (12b-1) Fees		0.25%	[1]	1.00%		none	none
Other Expenses		0.49%		0.61%		0.48%	0.62%
Acquired Fund Fees and Expenses (AFFE)		0.01%		0.01%		0.01%	0.01%
Total Annual Fund Operating Expenses	[2]	1.24%		2.11%		0.98%	1.12%
Fee Waiver and/or Expense Reimbursement	[3]	(0.40%)		(0.52%)	[4]	(0.39%)	(0.61%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.84%		1.59%	[4]	0.59%	0.51%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The example assumes that you invest $10,000 in the Fund for the time periods indicated and then, except as indicated, redeem 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 (reflecting any contractual fee waivers).  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Assuming Redemption at End of Period

Expense Example Touchstone Core Bond Fund (USD $)	Class A	Class C	Class Y	Institutional
Expense Example, With Redemption, 1 Year	557	262	60	52
Expense Example, With Redemption, 3 Years	812	611	273	295
Expense Example, With Redemption, 5 Years	1,087	1,086	504	558
Expense Example, With Redemption, 10 Years	1,870	2,400	1,166	1,308

Assuming No Redemption

Expense Example, No Redemption (USD $)	Touchstone Core Bond Fund Class C
Expense Example, No Redemption, 1 Year	162
Expense Example, No Redemption, 3 Years	611
Expense Example, No Redemption, 5 Years	1,086
Expense Example, No Redemption, 10 Years	2,400

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio).  A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account.  These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.  During the most recent fiscal year, the Fund’s portfolio turnover rate was 525% of the average value of its portfolio.

The Fund’s Principal Investment Strategies

The Fund normally invests at least 80% of its net assets (including borrowings for investment purposes) in bonds.  Bonds include mortgage-related securities, asset-backed securities, government securities, and corporate debt securities.  Shareholders will be provided with at least 60 days’ prior notice of any change in this policy.  The Fund expects to have an average effective maturity of between 5 and 15 years.  The Fund invests at least 80% of its total assets in investment-grade debt securities, but may invest up to 20% of its total assets in non-investment-grade debt securities rated less than a BBB-/Baa3 rating by Moody’s Investors Service, Standard & Poor’s Ratings Group or Fitch Ratings.  Non-investment-grade debt securities are often referred to as “junk bonds” and are considered speculative.

In deciding what securities to buy and sell for the Fund, the sub-advisor, Fort Washington Investment Advisors, Inc. (“Fort Washington”), analyzes the overall investment opportunities and risks in different sectors of the debt securities markets by focusing on maximizing total return while reducing volatility of the Fund’s portfolio.  Fort Washington follows a disciplined sector allocation process in order to build a broadly diversified portfolio of bonds.

The Fund may engage in frequent and active trading as part of its principal investment strategy.

The Principal Risks

The Fund’s share price will fluctuate. You could lose money on your investment in the Fund and the Fund could also return less than other investments.  The Fund is subject to the principal risks summarized below.

Credit Risk:  The securities in the Fund’s portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions.  This could cause an issuer to fail to make timely payments of principal or interest, when due.  This may cause the issuer’s securities to decline in value.

Prepayment Risk: The risk that a debt security may be paid off and proceeds invested earlier than anticipated. Prepayment risk is more prevalent during periods of falling interest rates.

Interest Rate Risk: As interest rates rise, the value of fixed income securities the Fund owns will likely decrease.  Longer-term securities are generally more volatile, so the longer the average maturity or duration of these securities, the greater their price risk.  Duration is a measure of the expected life, taking into account any prepayment or call features of the security, of a fixed income security that is used to determine the price sensitivity of the security for a given change in interest rates.  Specifically, duration is the change in the value of a fixed income security that will result from a 1% change in interest rates, and generally is stated in years.  Maturity, on the other hand, is the date on which a fixed income security becomes due for payment of principal.

Investment-Grade Debt Securities Risk:  Investment-grade debt securities may be downgraded by a Nationally Recognized Statistical Rating Organization (“NRSRO”) to below-investment-grade status, which would increase the risk of holding these securities or a rating may become stale in that it fails to reflect changes to an issuer’s financial condition. Investment-grade debt securities rated in the lowest rating category by an NRSRO involve a higher degree of risk than fixed-income securities in the higher-rating categories.  While such securities are considered investment-grade quality and are deemed to have adequate capacity for payment of principal and interest, such securities lack outstanding investment characteristics and have speculative characteristics as well.  For example, changes in economic conditions or other circumstances are more likely to lead to a weakened capacity to make principal and interest payments than is the case with higher-grade securities.

Mortgage-Backed Securities Risk:  Mortgage-backed securities are fixed income securities representing an interest in a pool of underlying mortgage loans. Mortgage-backed securities are sensitive to changes in interest rates, but may respond to these changes differently from other fixed income securities due to the possibility of prepayment of the underlying mortgage loans.  As a result, it may not be possible to determine in advance the actual maturity date or average life of a mortgage-backed security.  Rising interest rates tend to discourage refinancings, with the result that the average life and volatility of the security will increase, exacerbating its decrease in market price.  When interest rates fall, however, mortgage-backed securities may not gain as much in market value because of the expectation of additional mortgage prepayments that must be reinvested at lower interest rates.  Prepayment risk may make it difficult to calculate the average duration of the Fund’s mortgage-backed securities which in turn would make it difficult to assess the interest rate risk of the Fund.  An unexpectedly high rate of defaults on the mortgages held by a mortgage pool may adversely affect the value of mortgage-backed securities and could result in losses to the Fund.  The risk of such defaults is generally higher in the cases of mortgage pools that include subprime mortgages.  Subprime mortgages refer to loans made to borrowers with weakened credit histories or with lower capacity to make timely payments on their mortgages.  Collateralized mortgage obligations are more volatile and may be more sensitive to the rate of prepayments than other mortgage-related securities.

Asset-Backed Securities Risk:  Asset-backed securities are fixed income securities backed by other assets such as credit card, automobile or consumer loan receivables, retail installment loans, or participations in pools of leases.  Credit support for these securities may be based on the underlying assets and/or provided through credit enhancements by a third party. Even with a credit enhancement by a third party, there is still risk of loss.  There could be inadequate collateral or no collateral for asset-backed securities.  The values of these securities are sensitive to changes in the credit quality of the underlying collateral, the credit strength of the credit enhancement, changes in interest rates and, at times, the financial condition of the issuer.  Some asset-backed securities also may receive prepayments that can change the securities’ effective durations.

Non-Investment-Grade Debt Securities Risk:  Non-investment-grade debt securities are sometimes referred to as “junk bonds” and are considered speculative with respect to their issuers’ ability to make payments of interest and principal.  There is a high risk that the Fund could suffer a loss from investments in non-investment-grade debt securities caused by the default of an issuer of such securities.  Part of the reason for this high risk is that, in the event of a default or bankruptcy, holders of non-investment-grade debt securities generally will not receive payments until the holders of all other debt have been paid.  In addition, the market for non-investment-grade debt securities has historically had more frequent and larger price changes than the markets for other securities.  Non-investment-grade debt securities can also be more difficult to sell for good value.

Management Risk: Touchstone Advisors, Inc., the Fund’s advisor (the “Advisor”), engages one or more sub-advisors to make investment decisions on its behalf for a portion or all of the Fund.  There is a risk that the Advisor may be unable to identify and retain sub-advisors who achieve superior investment returns relative to other similar sub-advisors.  The value of your investment may decrease if the sub-advisor’s judgment about the attractiveness, value or market trends affecting a particular security, issuer, industry or sector or about market movements is incorrect.

Portfolio Turnover Risk:  Frequent and active trading may result in greater expenses to the Fund and may generate more taxable short-term gains for shareholders, which may lower the Fund’s performance.

U.S. Government Agencies Securities Risk:  Certain U.S. government agency securities are backed by the right of the issuer to borrow from the U.S. Treasury while others are supported only by the credit of the issuer or instrumentality. While the U.S. government is able to provide financial support to U.S. government-sponsored agencies or instrumentalities, no assurance can be given that it will always do so.  Such securities are neither issued nor guaranteed by the U.S. Treasury.

As with any mutual fund, there is no guarantee that the Fund will achieve its investment goal.

The Fund’s Performance

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual total returns for 1 year, 5 years, and 10 years compare with the Barclays Capital U.S. Aggregate Bond Index.  The bar chart does not reflect any sales charges, which would reduce your return.  The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future.  Updated performance is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.

Core Bond Fund — Class A Total Returns as of December 31

Best Quarter: 3rd Quarter 2009  +7.14%        Worst Quarter:  3rd Quarter 2008  -2.68%

The year-to-date return for the Fund’s Class A shares as of December 31, 2012 is 5.75%.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.  Your actual after-tax returns may differ from those shown and depend on your tax situation.  The after-tax returns do not apply to shares held in an IRA, 401(k), or other tax-deferred account.  The after-tax returns shown in the table are for Class A shares only.  The after-tax returns for other classes of shares offered by the Fund will differ from the Class A after-tax returns.

Average Annual Total Returns Touchstone Core Bond Fund	Average Annual Returns, Label	Average Annual Returns, 1 Year		Average Annual Returns, 5 Years		Average Annual Returns, 10 Years
Class A	Class A Return Before Taxes	0.71%		5.61%		4.50%
Class A After Taxes on Distributions	Class A Return After Taxes on Distributions	(0.78%)		3.99%		2.93%
Class A After Taxes on Distributions and Sale of Fund Shares	Class A Return After Taxes on Distributions and Sale of Fund Shares	0.46%		3.82%		2.90%
Class C	Class C Return Before Taxes	3.99%		5.84%		4.23%
Class Y	Class Y Return Before Taxes	5.93%	[1]	6.67%	[1]	5.02%	[1]
Institutional	Institutional Class Return Before Taxes	5.99%	[1]	6.68%	[1]	5.03%	[1]
Barclays Capital U.S. Aggregate Bond Index	Barclays Capital U.S. Aggregate Bond Index (reflects no deductions for fees, expenses or taxes)	4.21%		5.95%		5.18%

[1] The Fund is authorized under its 12b-1 plan for Class A shares to pay an annual fee of up to 0.35% of its average daily net assets for the sale and distribution of shares. The Fund currently intends to limit the amount of 12b-1 fees for Class A shares to a maximum of 0.25% per annum of the average daily net assets of Class A shares.

[2] The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets that are included in the Fund's Annual Report dated September 30, 2012, which reflects operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.

[3] Touchstone Advisors, Inc. and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.83%, 1.58%, 0.58%, and 0.50% for Class A shares, Class C shares, Class Y Shares, and Institutional Class Shares respectively. This expense limitation will remain in effect until at least April 16, 2014, but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. The terms of Touchstone Advisors' contractual waiver agreement provide that Touchstone Advisors is entitled to recover, subject to approval by the Fund's Board of Trustees, such amounts waived or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's operating expenses are below the expense limitation amount. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's prospectus for more information.

[4] Expenses shown above have been restated to reflect a change in the Fund's contractual fee waiver and will differ from the expenses reflected in the Fund's Annual Report for the fiscal year ended September 30, 2012.

[1] Class Y shares and Institutional Class shares performance was calculated using the historical performance of Class A shares for the periods prior to April 16, 2012. Class Y shares and Institutional Class shares commenced operations on April 16, 2012.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Prospectus Date

rr_ProspectusDate

Jan. 30, 2013

Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return, Heading

rr_RiskReturnHeading

TOUCHSTONE HIGH YIELD FUND SUMMARY

Investment Objective, Heading

rr_ObjectiveHeading

The Fund’s Investment Goal

Investment Objective, Primary

rr_ObjectivePrimaryTextBlock

The Touchstone High Yield Fund (the “Fund”) seeks to achieve a high level of income as its main goal.

Investment Objective, Secondary

rr_ObjectiveSecondaryTextBlock

Capital appreciation is a secondary consideration.

Expense, Heading

rr_ExpenseHeading

The Fund’s Fees and Expenses

Expense, Narrative

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.  You may qualify for sales charge discounts for Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 or more in the Touchstone Funds.  More information about these and other discounts is available from your financial professional and in the section entitled “Choosing a Class of Shares” in the Fund’s prospectus on page 25 and in the Fund’s Statement of Additional Information (“SAI”) on page 46.

Shareholder Fees, Caption

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses, Caption

rr_OperatingExpensesCaption

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

Portfolio Turnover, Heading

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 48% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

48.00%

Expense Breakpoint, Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts for Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 or more in the Touchstone Funds.

Expense Breakpoint, Minimum Investment Required Amount

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

50,000

Expenses Restated to Reflect Current

rr_ExpensesRestatedToReflectCurrent

Expenses shown above have been restated to reflect a change in the Fund’s contractual fee waiver and will differ from the expenses reflected in the Fund’s Annual Report for the fiscal year ended September 30, 2012.

Expense Example, Heading

rr_ExpenseExampleHeading

Example

Expense Example, Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then, except as indicated, redeem 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 (reflecting any contractual fee waivers). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example by, Year, Caption

rr_ExpenseExampleByYearCaption

Assuming Redemption at End of Period

Expense Example, No Redemption, By Year, Caption

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming No Redemption

Investment Strategy, Heading

rr_StrategyHeading

The Fund’s Principal Investment Strategies

Investment Strategy, Narrative

rr_StrategyNarrativeTextBlock

The Fund normally invests at least 80% of its net assets (including borrowings for investment purposes) in non-investment-grade debt securities. This is a non-fundamental policy that can be changed by the Fund upon 60 days’ prior notice to shareholders. The Fund generally invests in non-investment-grade debt securities of domestic corporations. Non-investment-grade debt securities are higher risk, lower quality securities, often referred to as “junk bonds”, and are considered speculative. They are rated below BBB- by S&P and Fitch or below Baa3 by Moody’s. The Fund expects to have an average stated maturity of between 6 and 9 years, but it may vary to between 5 and 10 years.

In selecting securities for the Fund, the sub-advisor, Fort Washington Investment Advisors, Inc. (“Fort Washington”), analyzes the overall investment opportunities and risks in different industry sectors focusing on those industries that exhibit stability and predictability. Having developed certain industry biases resulting from the current macroeconomic environment, Fort Washington implements a process of elimination through which certain types of securities are removed from the list of initially selected securities due to their structure. The next step is to apply a rigorous credit selection process in order to identify securities that offer attractive investment opportunities. Once a security has been purchased, the credit analysis process is re-applied to each individual security in the Fund’s portfolio on a periodic basis or as new information becomes available to determine whether or not to keep a security in the Fund’s portfolio.

Risk, Heading

rr_RiskHeading

The Principal Risks

Risk, Narrative

rr_RiskNarrativeTextBlock

The Fund’s share price will fluctuate. You could lose money on your investment in the Fund and the Fund could also return less than other investments. The Fund is subject to the principal risks summarized below.

Non-Investment-Grade Debt Securities Risk: Non-investment-grade debt securities are sometimes referred to as “junk bonds” and are considered speculative with respect to their issuers’ ability to make payments of interest and principal. There is a high risk that the Fund could suffer a loss from investments in non-investment-grade debt securities caused by the default of an issuer of such securities. Part of the reason for this high risk is that, in the event of a default or bankruptcy, holders of non-investment-grade debt securities generally will not receive payments until the holders of all other debt have been paid. In addition, the market for non-investment-grade debt securities has, in the past, had more frequent and larger price changes than the markets for other securities. Non-investment-grade debt securities can also be more difficult to sell for good value.

Credit Risk: The securities in the Fund’s portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions. This could cause an issuer to fail to make timely payments of principal or interest, when due. This may cause the issuer’s securities to decline in value.

Interest Rate Risk: As interest rates rise, the value of fixed income securities the Fund owns will likely decrease. Longer-term securities are generally more volatile, so the longer the average maturity or duration of these securities, the greater their price risk. Duration is a measure of the expected life, taking into account any prepayment or call features of the security, of a fixed income security that is used to determine the price sensitivity of the security for a given change in interest rates. Specifically, duration is the change in the value of a fixed income security that will result from a 1% change in interest rates, and generally is stated in years. Maturity, on the other hand, is the date on which a fixed income security becomes due for payment of principal.

Management Risk: Touchstone Advisors, Inc., the Fund’s advisor (the “Advisor”), engages one or more sub-advisors to make investment decisions on its behalf for a portion or all of the Fund. There is a risk that the Advisor may be unable to identify and retain sub-advisors who achieve superior investment returns relative to other similar sub-advisors. The value of your investment may decrease if the sub-advisor’s judgment about the attractiveness, value or market trends affecting a particular security, issuer, industry or sector or about market movements is incorrect.

As with any mutual fund, there is no guarantee that the Fund will achieve its investment goal.

Risk, Lose Money

rr_RiskLoseMoney

The Fund’s share price will fluctuate. You could lose money on your investment in the Fund and the Fund could also return less than other investments.

Bar Chart and Performance Table, Heading

rr_BarChartAndPerformanceTableHeading

The Fund’s Performance

Performance, Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual total returns for 1 year, 5 years, and 10 years compare with the Merrill Lynch U.S. High Yield Cash Pay Index. The bar chart does not reflect any sales charges, which would reduce your return. The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.

Performance, Information Illustrates Variability of Returns

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual total returns for 1 year, 5 years, and 10 years compare with the Merrill Lynch U.S. High Yield Cash Pay Index.

Performance, Availability Phone Number

rr_PerformanceAvailabilityPhone

1.800.543.0407

Performance, Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

www.TouchstoneInvestments.com

Performance, Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future.

Bar Chart, Heading

rr_BarChartHeading

High Yield Fund — Class A Total Returns as of December 31

Bar Chart, Does Not Reflect Sales Loads

rr_BarChartDoesNotReflectSalesLoads

The bar chart does not reflect any sales charges, which would reduce your return.

Bar Chart, Closing

rr_BarChartClosingTextBlock

Best Quarter:  2nd Quarter 2009 +22.23%        Worst Quarter:  3rd Quarter 2008 -20.40%

The year-to-date return for the Fund’s Class A shares as of December 31, 2012 is 12.91%.

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

reflects no deductions for fees, expenses or taxes

Performance Table, Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical 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

Your actual after-tax returns may differ from those shown and depend on your tax situation.  The after-tax returns do not apply to shares held in an IRA, 401(k), or other tax-deferred account.

Performance Table, One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

The after-tax returns shown in the table are for Class A shares only.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.  Your actual after-tax returns may differ from those shown and depend on your tax situation.  The after-tax returns do not apply to shares held in an IRA, 401(k), or other tax-deferred account.  The after-tax returns shown in the table are for Class A shares only.  The after-tax returns for other classes of shares offered by the Fund will differ from the Class A after-tax returns.

Class A shares began operations on May 1, 2000, Class C shares began operations on May 23, 2000, Class Y shares began operations on February 1, 2007 and Institutional Class shares began operations on January 27, 2012.

Average Annual Returns, Caption

rr_AverageAnnualReturnCaption

Average Annual Total Returns For the period ended December 31, 2012

Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Merrill Lynch U.S. High Yield Cash Pay Index

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Merrill Lynch U.S. High Yield Cash Pay Index (reflects no deductions for fees, expenses or taxes)

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

15.44%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

9.90%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

10.23%

Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.75%

Maximum Deferred Sales Charge (as a percentage of original purchase price or the amount redeemed, whichever is less)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Wire Redemption Fee

rr_RedemptionFee

15

Management Fees

rr_ManagementFeesOverAssets

0.52%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

^[1]

Other Expenses

rr_OtherExpensesOverAssets

0.33%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.10%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.11%

^[2],[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.99%

^[2]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-01-29

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

571

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

798

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

1,042

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

1,742

Annual Return 2003

rr_AnnualReturn2003

19.54%

Annual Return 2004

rr_AnnualReturn2004

9.41%

Annual Return 2005

rr_AnnualReturn2005

3.25%

Annual Return 2006

rr_AnnualReturn2006

7.38%

Annual Return 2007

rr_AnnualReturn2007

2.30%

Annual Return 2008

rr_AnnualReturn2008

(25.12%)

Annual Return 2009

rr_AnnualReturn2009

52.50%

Annual Return 2010

rr_AnnualReturn2010

13.34%

Annual Return 2011

rr_AnnualReturn2011

5.48%

Annual Return 2012

rr_AnnualReturn2012

12.91%

Year to Date Return, Label

rr_YearToDateReturnLabel

year-to-date return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Dec. 31, 2012

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

12.91%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

22.23%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(20.40%)

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class A Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

7.59%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

7.99%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

8.09%

Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Class A | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class A Return After Taxes on Distributions

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

5.25%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

4.85%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

5.10%

Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Class A | After Taxes on Distributions and Sale of Fund Shares

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class A Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

4.86%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

4.88%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

5.12%

Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Class C

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (as a percentage of original purchase price or the amount redeemed, whichever is less)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Wire Redemption Fee

rr_RedemptionFee

15

Management Fees

rr_ManagementFeesOverAssets

0.52%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other Expenses

rr_OtherExpensesOverAssets

0.40%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.92%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.18%

^[2],[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.74%

^[2]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-01-29

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

277

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

586

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

1,020

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

2,229

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

177

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

586

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

1,020

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

2,229

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class C Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

11.06%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

8.20%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

7.80%

Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Class Y

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (as a percentage of original purchase price or the amount redeemed, whichever is less)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Wire Redemption Fee

rr_RedemptionFee

15

Management Fees

rr_ManagementFeesOverAssets

0.52%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.34%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.86%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.12%

^[2],[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.74%

^[2]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-01-29

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

76

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

262

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

465

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

1,050

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class Y Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

13.16%

^[4]

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

9.38%

^[4]

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

8.82%

^[4]

Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (as a percentage of original purchase price or the amount redeemed, whichever is less)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Wire Redemption Fee

rr_RedemptionFee

15

Management Fees

rr_ManagementFeesOverAssets

0.52%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.43%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.95%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.36%

^[2],[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.59%

^[2]

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

60

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

267

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

490

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

1,133

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Institutional Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

13.34%

^[4]

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

9.12%

^[4]

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

8.66%

^[4]

[1] The Fund is authorized under its 12b-1 plan for Class A shares to pay an annual fee of up to 0.35% of its average daily net assets for the sale and distribution of shares. The Fund currently intends to limit the amount of 12b-1 fees for Class A shares to a maximum of 0.25% per annum of the average daily net assets of Class A shares.

[2] Expenses shown above have been restated to reflect a change in the Fund's contractual fee waiver and will differ from the expenses reflected in the Fund's Annual Report for the fiscal year ended September 30, 2012.

[3] Touchstone Advisors, Inc. and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.99%, 1.74%, 0.74%, and 0.59% for Class A shares, Class C shares, Class Y shares, and Institutional Class shares, respectively. This expense limitation will remain in effect until at least January 29, 2014, but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the Fund shareholders. Touchstone Advisors is entitled to recoup, subject to approval by the Board of Trustees of the Fund, such amounts reduced or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's expenses are below the expense limitation. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's prospectus for more information.

[4] Class Y shares and Institutional Class shares performance was calculated using the historical performance of Class A shares for the periods prior to February 1, 2007 and January 27, 2012, respectively.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Jan. 30, 2013
Registrant Name	dei_EntityRegistrantName	TOUCHSTONE INVESTMENT TRUST
Central Index Key	dei_EntityCentralIndexKey	0000066117
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Jan. 28, 2013
Document Effective Date	dei_DocumentEffectiveDate	Jan. 28, 2013
Prospectus Date	rr_ProspectusDate	Jan. 30, 2013
Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TOBAX
Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TODCX
Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TOBYX
Touchstone Core Bond Fund (Prospectus Summary) | Touchstone Core Bond Fund | Institutional
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TOBIX
Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	THYAX
Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	THYCX
Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	THYYX
Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund | Institutional
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	THIYX
Touchstone Money Market Fund (Prospectus Summary) | Touchstone Money Market Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMMXX
Touchstone Money Market Fund (Prospectus Summary) | Touchstone Money Market Fund | Class S
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMSXX
Touchstone Institutional Money Market Fund (Prospectus Summary) | Touchstone Institutional Money Market Fund | Institutional
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TINXX

XML

Touchstone Money Market Fund (Prospectus Summary) | Touchstone Money Market Fund

TOUCHSTONE MONEY MARKET FUND SUMMARY

The Fund’s Investment Goal

The Touchstone Money Market Fund (the “Fund”) seeks high current income, consistent with liquidity and stability of principal.  The Fund is a money market fund, which seeks to maintain a constant share price of $1.00 per share.

The Fund’s Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Touchstone Money Market Fund (USD $)	Class A	Class S
Wire Redemption Fee	15	none

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

Annual Fund Operating Expenses Touchstone Money Market Fund		Class A		Class S
Management Fees		0.44%		0.44%
Distribution (12b-1) Fees		0.25%	[1]	0.35%	[2]
Other Expenses		0.46%		0.37%
Total Annual Fund Operating Expenses		1.15%		1.16%
Fee Waiver and/or Expense Reimbursement	[3][4]	(0.30%)		(0.26%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.85%		0.90%

Example.

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem 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 (reflecting any contractual fee waivers).  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example Touchstone Money Market Fund (USD $)	Class A	Class S
Expense Example, With Redemption, 1 Year	87	92
Expense Example, With Redemption, 3 Years	336	343
Expense Example, With Redemption, 5 Years	604	613
Expense Example, With Redemption, 10 Years	1,371	1,386

The Fund’s Principal Investment Strategies

The Fund invests in U.S. government securities and high-quality money market instruments rated in one of the top two short-term rating categories or determined by the sub-advisor to be of comparable quality.  The Fund’s investments may include:

·Bank obligations, including certificates of deposit, bankers’ acceptances and time deposits

·U.S. government securities issued directly by the U.S. Treasury or by agencies of the U.S. government

·Short-term corporate debt securities

·Short-term municipal securities

·Variable- and floating-rate securities

·Repurchase agreements

The Fund maintains a dollar-weighted average portfolio maturity of 60 days or less and a dollar-weighted average life of 120 days or less, and it purchases only U.S. dollar-denominated securities with maturities of 397 days or less.

The Fund will hold at least 10% of its total assets in “Daily Liquid Assets” and at least 30% of its total assets in “Weekly Liquid Assets.”  “Daily Liquid Assets” include cash (including demand deposits), direct obligations of the U.S. government, and securities (including repurchase agreements) that will mature or are subject to a demand feature that is exercisable and payable within one business day.  “Weekly Liquid Assets” include cash (including demand deposits), direct obligations of the U.S. government, agency discount notes with remaining maturities of 60 days or less, and securities (including repurchase agreements) that will mature or are subject to a demand feature that is exercisable and payable within 5 business days.  The Fund is also subject to quality and diversification requirements of Rule 2a-7 under the Investment Company Act of 1940, as amended, which are designed to help it maintain a constant share price of $1.00 per share.

The Principal Risks

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”), the U.S. Treasury, or any other government agency.  Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.  There is no guarantee that the Fund will be able to avoid a negative yield.

Market Risk:  Adverse developments affecting banks could have a negative effect on the value of the Fund’s portfolio securities.  This could cause the value of the Fund’s shares to decrease to a price less than $1.00 per share.  During periods of extreme market volatility, prices of securities held by the Fund may be negatively impacted due to imbalances between credit market participants seeking to sell the same or similar securities and market participants willing or able to buy such securities.  As a result, the market prices of securities held by the Fund could go down, at times without regard to the financial condition of or specific events impacting the issuer of the security.  A significant enough market disruption or drop in market prices of securities held by the Fund, especially at a time during which the Fund needs to sell securities to meet shareholder redemption requests, could cause the value of the Fund’s shares to decrease to a price less than $1.00 per share.

Credit Risk: The securities in the Fund’s portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions, could cause an issuer to fail to make timely payments of principal or interest, when due.  This may cause the issuer’s securities to decline in value.

Interest Rate Risk: The yield of the Fund will vary from day to day due to changes in interest rates.  Generally, the Fund’s yield will increase when interest rates increase and will decrease when interest rates decrease.

Management Risk: Touchstone Advisors, Inc., the Fund’s advisor (the “Advisor”), engages one or more sub-advisors to make investment decisions on its behalf for a portion or all of the Fund.  There is a risk that the Advisor may be unable to identify and retain sub-advisors who achieve superior investment returns relative to other similar sub-advisors.  The value of your investment may decrease if the sub-advisor’s judgment about the attractiveness, value or market trends affecting a particular security, issuer, industry or sector or about market movements is incorrect.

U.S. Government Agencies Securities Risk:  Certain U.S. government agency securities are backed by the right of the issuer to borrow from the U.S. Treasury while others are supported only by the credit of the issuer or instrumentality. While the U.S. government is able to provide financial support to U.S. government-sponsored agencies or instrumentalities, no assurance can be given that it will always do so.  Such securities are neither issued nor guaranteed by the U.S. Treasury.

As with any mutual fund, there is no guarantee that the Fund will achieve its investment goal.

The Fund’s Performance

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing the Fund’s average annual returns for 1 year, 5 years, and 10 years for Class A shares, and 1 year, 5 years, and since inception for Class S shares.  The Fund’s past performance does not necessarily indicate how it will perform in the future.  Updated performance and current yield information is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.

Money Market Fund — Class A Total Returns as of December 31

Best Quarter:  3rd Quarter 2007 +1.17%        Worst Quarter:  4th Quarter 2009 0.00%

The year-to-date return for the Fund’s Class A shares as of December 31, 2012 is 0.01%.

Average Annual Total Returns Touchstone Money Market Fund	Average Annual Returns, Label	Average Annual Returns, 1 Year	Average Annual Returns, 5 Years	Average Annual Returns, 10 Years	Average Annual Returns, Since Inception	Average Annual Returns, Inception Date
Class A	Class A Shares	0.01%	0.72%	1.68%
Class S	Class S Shares	0.01%	0.62%		1.48%	Feb. 03, 2003

[1] The Fund is authorized under its 12b-1 plan for Class A shares to pay an annual fee of up to 0.35% of its average daily net assets for the sale and distribution of shares. The Fund currently intends to limit the amount of 12b-1 fees for Class A shares to a maximum of 0.25% per annum of the average daily net assets of Class A shares.

[2] The Fund is authorized under its 12b-1 plan for Class S shares to pay an annual fee of up to 1.00% of its average daily net assets for the sale and distribution of shares. The Fund currently intends to limit the amount of 12b-1 fees for Class S shares to a maximum of 0.35% per annum of the average daily net assets of Class S shares.

[3] Touchstone Advisors, Inc. and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.85% and 0.90% for Class A shares and Class S shares, respectively. This expense limitation will remain in effect until at least January 29, 2014, but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. The terms of Touchstone Advisors' contractual waiver agreement provide that Touchstone Advisors is entitled to recover, subject to approval by the Fund's Board of Trustees, such amounts waived or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's operating expenses are below the expense limitation amount. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's prospectus for more information.

[4] The fee waivers do not correlate to "Ratio of net expenses to average net assets" shown in the Fund's Annual Report due to an additional voluntary fee waiver. During the last fiscal year, Touchstone Advisors voluntarily waived additional fees or reimbursed certain Fund expenses. Due to the voluntary fee waivers, the Fund's actual ratio of net expenses to average net expenses was 0.36% and 0.36% for Class A shares and Class S shares, respectively.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Prospectus Date

rr_ProspectusDate

Jan. 30, 2013

Touchstone Money Market Fund (Prospectus Summary) | Touchstone Money Market Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return, Heading

rr_RiskReturnHeading

TOUCHSTONE MONEY MARKET FUND SUMMARY

Investment Objective, Heading

rr_ObjectiveHeading

The Fund’s Investment Goal

Investment Objective, Primary

rr_ObjectivePrimaryTextBlock

The Touchstone Money Market Fund (the “Fund”) seeks high current income, consistent with liquidity and stability of principal.  The Fund is a money market fund, which seeks to maintain a constant share price of $1.00 per share.

Expense, Heading

rr_ExpenseHeading

The Fund’s Fees and Expenses

Expense, Narrative

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:

Shareholder Fees, Caption

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses, Caption

rr_OperatingExpensesCaption

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

Expense Example, Heading

rr_ExpenseExampleHeading

Example.

Expense Example, Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem 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 (reflecting any contractual fee waivers).  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Investment Strategy, Heading

rr_StrategyHeading

The Fund’s Principal Investment Strategies

Investment Strategy, Narrative

rr_StrategyNarrativeTextBlock

The Fund invests in U.S. government securities and high-quality money market instruments rated in one of the top two short-term rating categories or determined by the sub-advisor to be of comparable quality.  The Fund’s investments may include:

·Bank obligations, including certificates of deposit, bankers’ acceptances and time deposits

·U.S. government securities issued directly by the U.S. Treasury or by agencies of the U.S. government

·Short-term corporate debt securities

·Short-term municipal securities

·Variable- and floating-rate securities

·Repurchase agreements

The Fund maintains a dollar-weighted average portfolio maturity of 60 days or less and a dollar-weighted average life of 120 days or less, and it purchases only U.S. dollar-denominated securities with maturities of 397 days or less.

The Fund will hold at least 10% of its total assets in “Daily Liquid Assets” and at least 30% of its total assets in “Weekly Liquid Assets.”  “Daily Liquid Assets” include cash (including demand deposits), direct obligations of the U.S. government, and securities (including repurchase agreements) that will mature or are subject to a demand feature that is exercisable and payable within one business day.  “Weekly Liquid Assets” include cash (including demand deposits), direct obligations of the U.S. government, agency discount notes with remaining maturities of 60 days or less, and securities (including repurchase agreements) that will mature or are subject to a demand feature that is exercisable and payable within 5 business days.  The Fund is also subject to quality and diversification requirements of Rule 2a-7 under the Investment Company Act of 1940, as amended, which are designed to help it maintain a constant share price of $1.00 per share.

Risk, Heading

rr_RiskHeading

The Principal Risks

Risk, Narrative

rr_RiskNarrativeTextBlock

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”), the U.S. Treasury, or any other government agency.  Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.  There is no guarantee that the Fund will be able to avoid a negative yield.

Market Risk:  Adverse developments affecting banks could have a negative effect on the value of the Fund’s portfolio securities.  This could cause the value of the Fund’s shares to decrease to a price less than $1.00 per share.  During periods of extreme market volatility, prices of securities held by the Fund may be negatively impacted due to imbalances between credit market participants seeking to sell the same or similar securities and market participants willing or able to buy such securities.  As a result, the market prices of securities held by the Fund could go down, at times without regard to the financial condition of or specific events impacting the issuer of the security.  A significant enough market disruption or drop in market prices of securities held by the Fund, especially at a time during which the Fund needs to sell securities to meet shareholder redemption requests, could cause the value of the Fund’s shares to decrease to a price less than $1.00 per share.

Credit Risk: The securities in the Fund’s portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions, could cause an issuer to fail to make timely payments of principal or interest, when due.  This may cause the issuer’s securities to decline in value.

Interest Rate Risk: The yield of the Fund will vary from day to day due to changes in interest rates.  Generally, the Fund’s yield will increase when interest rates increase and will decrease when interest rates decrease.

Management Risk: Touchstone Advisors, Inc., the Fund’s advisor (the “Advisor”), engages one or more sub-advisors to make investment decisions on its behalf for a portion or all of the Fund.  There is a risk that the Advisor may be unable to identify and retain sub-advisors who achieve superior investment returns relative to other similar sub-advisors.  The value of your investment may decrease if the sub-advisor’s judgment about the attractiveness, value or market trends affecting a particular security, issuer, industry or sector or about market movements is incorrect.

U.S. Government Agencies Securities Risk:  Certain U.S. government agency securities are backed by the right of the issuer to borrow from the U.S. Treasury while others are supported only by the credit of the issuer or instrumentality. While the U.S. government is able to provide financial support to U.S. government-sponsored agencies or instrumentalities, no assurance can be given that it will always do so.  Such securities are neither issued nor guaranteed by the U.S. Treasury.

As with any mutual fund, there is no guarantee that the Fund will achieve its investment goal.

Risk Money Market Fund

rr_RiskMoneyMarketFund

Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.

Risk Not Insured Depository Institution

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”), the U.S. Treasury, or any other government agency.

Bar Chart and Performance Table, Heading

rr_BarChartAndPerformanceTableHeading

The Fund’s Performance

Performance, Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing the Fund’s average annual returns for 1 year, 5 years, and 10 years for Class A shares, and 1 year, 5 years, and since inception for Class S shares.  The Fund’s past performance does not necessarily indicate how it will perform in the future.  Updated performance and current yield information is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.

Performance, Information Illustrates Variability of Returns

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing the Fund’s average annual returns for 1 year, 5 years, and 10 years for Class A shares, and 1 year, 5 years, and since inception for Class S shares.

Performance, Availability Phone Number

rr_PerformanceAvailabilityPhone

1.800.543.0407

Performance, Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

www.TouchstoneInvestments.com

Performance, Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance does not necessarily indicate how it will perform in the future.

Bar Chart, Heading

rr_BarChartHeading

Money Market Fund — Class A Total Returns as of December 31

Bar Chart, Closing

rr_BarChartClosingTextBlock

Best Quarter:  3rd Quarter 2007 +1.17%        Worst Quarter:  4th Quarter 2009 0.00%

The year-to-date return for the Fund’s Class A shares as of December 31, 2012 is 0.01%.

Average Annual Returns, Caption

rr_AverageAnnualReturnCaption

Average Annual Total Returns For the period ended December 31, 2012

Touchstone Money Market Fund (Prospectus Summary) | Touchstone Money Market Fund | Class A

Risk/Return:

rr_RiskReturnAbstract

Wire Redemption Fee

rr_RedemptionFee

15

Management Fees

rr_ManagementFeesOverAssets

0.44%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

^[1]

Other Expenses

rr_OtherExpensesOverAssets

0.46%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.15%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.30%

^[2],[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.85%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-01-29

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

87

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

336

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

604

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

1,371

Annual Return 2003

rr_AnnualReturn2003

0.74%

Annual Return 2004

rr_AnnualReturn2004

0.90%

Annual Return 2005

rr_AnnualReturn2005

2.65%

Annual Return 2006

rr_AnnualReturn2006

4.38%

Annual Return 2007

rr_AnnualReturn2007

4.62%

Annual Return 2008

rr_AnnualReturn2008

2.94%

Annual Return 2009

rr_AnnualReturn2009

0.63%

Annual Return 2010

rr_AnnualReturn2010

0.01%

Annual Return 2011

rr_AnnualReturn2011

0.01%

Annual Return 2012

rr_AnnualReturn2012

0.01%

Year to Date Return, Label

rr_YearToDateReturnLabel

year-to-date return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Dec. 31, 2012

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.01%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2007

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

1.17%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2009

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.00%

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class A Shares

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

0.01%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

0.72%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

1.68%

Touchstone Money Market Fund (Prospectus Summary) | Touchstone Money Market Fund | Class S

Risk/Return:

rr_RiskReturnAbstract

Wire Redemption Fee

rr_RedemptionFee

none

Management Fees

rr_ManagementFeesOverAssets

0.44%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.35%

^[4]

Other Expenses

rr_OtherExpensesOverAssets

0.37%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.16%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.26%

^[2],[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.90%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-01-29

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

92

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

343

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

613

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

1,386

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Class S Shares

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

0.01%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

0.62%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

1.48%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Feb. 03, 2003

[1] The Fund is authorized under its 12b-1 plan for Class A shares to pay an annual fee of up to 0.35% of its average daily net assets for the sale and distribution of shares. The Fund currently intends to limit the amount of 12b-1 fees for Class A shares to a maximum of 0.25% per annum of the average daily net assets of Class A shares.

[2] Touchstone Advisors, Inc. and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.85% and 0.90% for Class A shares and Class S shares, respectively. This expense limitation will remain in effect until at least January 29, 2014, but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. The terms of Touchstone Advisors' contractual waiver agreement provide that Touchstone Advisors is entitled to recover, subject to approval by the Fund's Board of Trustees, such amounts waived or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's operating expenses are below the expense limitation amount. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's prospectus for more information.

[3] The fee waivers do not correlate to "Ratio of net expenses to average net assets" shown in the Fund's Annual Report due to an additional voluntary fee waiver. During the last fiscal year, Touchstone Advisors voluntarily waived additional fees or reimbursed certain Fund expenses. Due to the voluntary fee waivers, the Fund's actual ratio of net expenses to average net expenses was 0.36% and 0.36% for Class A shares and Class S shares, respectively.

[4] The Fund is authorized under its 12b-1 plan for Class S shares to pay an annual fee of up to 1.00% of its average daily net assets for the sale and distribution of shares. The Fund currently intends to limit the amount of 12b-1 fees for Class S shares to a maximum of 0.35% per annum of the average daily net assets of Class S shares.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Prospectus Date

rr_ProspectusDate

Jan. 30, 2013

Touchstone Institutional Money Market Fund (Prospectus Summary) | Touchstone Institutional Money Market Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return, Heading

rr_RiskReturnHeading

TOUCHSTONE INSTITUTIONAL MONEY MARKET FUND SUMMARY

Investment Objective, Heading

rr_ObjectiveHeading

The Fund’s Investment Goal

Investment Objective, Primary

rr_ObjectivePrimaryTextBlock

The Touchstone Institutional Money Market Fund (the “Fund”) seeks high current income, consistent with liquidity and stability of principal.  The Fund is a money market fund, which seeks to maintain a constant share price of $1.00 per share.

Expense, Heading

rr_ExpenseHeading

The Fund’s Fees and Expenses

Expense, Narrative

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:

Shareholder Fees, Caption

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment) None

Operating Expenses, Caption

rr_OperatingExpensesCaption

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

Expense Example, Heading

rr_ExpenseExampleHeading

Example

Expense Example, Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem 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 (reflecting any contractual fee waivers).  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Investment Strategy, Heading

rr_StrategyHeading

The Fund’s Principal Investment Strategies

Investment Strategy, Narrative

rr_StrategyNarrativeTextBlock

The Fund invests in U.S. government securities and high-quality money market instruments rated in one of the top two short-term rating categories or determined by the sub-advisor, Fort Washington Investment Advisors, Inc. (“Fort Washington”) to be of comparable quality. The Fund’s investments may include:

·Bank obligations, including certificates of deposit, bankers’ acceptances and time deposits

·U.S. government securities issued directly by the U.S. Treasury or by agencies of the U.S. government

·Short-term corporate debt securities

·Short-term municipal securities

·Variable and floating rate securities

·Repurchase agreements

The Fund maintains a dollar-weighted average portfolio maturity of 60 days or less and a dollar-weighted average life of 120 days or less, and it purchases only U.S. dollar-denominated securities with maturities of 397 days or less.

The Fund will hold at least 10% of its total assets in “Daily Liquid Assets” and at least 30% of its total assets in “Weekly Liquid Assets.”  “Daily Liquid Assets” include cash (including demand deposits), direct obligations of the U.S. government and securities (including repurchase agreements) that will mature or are subject to a demand feature that is exercisable and payable within one business day.  “Weekly Liquid Assets” include cash (including demand deposits), direct obligations of the U.S. government, agency discount notes with remaining maturities of 60 days or less, and securities (including repurchase agreements) that will mature or are subject to a demand feature that is exercisable and payable within 5 business days.  The Fund is also subject to quality and diversification requirements of Rule 2a-7 under the Investment Company Act of 1940, as amended, which are designed to help it maintain a constant share price of $1.00 per share.

Risk, Heading

rr_RiskHeading

The Principal Risks

Risk, Narrative

rr_RiskNarrativeTextBlock

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”), the U.S. Treasury or any other government agency.  Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.  There is no guarantee that the Fund will be able to avoid a negative yield.

Market Risk:  Adverse developments affecting banks could have a negative effect on the value of the Fund’s portfolio securities.  This could cause the value of the Fund’s shares to decrease to a price less than $1.00 per share.  During periods of extreme market volatility, prices of securities held by the Fund may be negatively impacted due to imbalances between credit market participants seeking to sell the same or similar securities and market participants willing or able to buy such securities.  As a result, the market prices of securities held by the Fund could go down, at times without regard to the financial condition of or specific events impacting the issuer of the security.  A significant enough market disruption or drop in market prices of securities held by the Fund, especially at a time during which the Fund needs to sell securities to meet shareholder redemption requests, could cause the value of the Fund’s shares to decrease to a price less than $1.00 per share.

Credit Risk: The securities in the Fund’s portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions.  This could cause an issuer to fail to make timely payments of principal or interest, when due.  This may cause the issuer’s securities to decline in value.

Interest Rate Risk: The yield of the Fund will vary from day to day due to changes in interest rates. Generally, the Fund’s yield will increase when interest rates increase and will decrease when interest rates decrease.

Management Risk: Touchstone Advisors, Inc., the Fund’s advisor (the “Advisor”), engages one or more sub-advisors to make investment decisions on its behalf for a portion or all of each Fund.  There is a risk that the Advisor may be unable to identify and retain sub-advisors who achieve superior investment returns relative to other similar sub-advisors.  The value of your investment may decrease if the sub-advisor’s judgment about the attractiveness, value or market trends affecting a particular security, issuer, industry or sector or about market movements is incorrect.

U.S. Government Agencies Securities Risk:  Certain U.S. government agency securities are backed by the right of the issuer to borrow from the U.S. Treasury while others are supported only by the credit of the issuer or instrumentality. While the U.S. government is able to provide financial support to U.S. government-sponsored agencies or instrumentalities, no assurance can be given that it will always do so.  Such securities are neither issued nor guaranteed by the U.S. Treasury.

As with any mutual fund, there is no guarantee that the Fund will achieve its investment goal.

Risk Money Market Fund

rr_RiskMoneyMarketFund

Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.

Risk Not Insured Depository Institution

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”), the U.S. Treasury or any other government agency.

Bar Chart and Performance Table, Heading

rr_BarChartAndPerformanceTableHeading

The Fund’s Performance

Performance, Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing the Fund’s average annual returns for 1 year, 5 years, and 10 years.  The Fund’s past performance does not necessarily indicate how it will perform in the future.  Updated performance and current yield information is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.

Performance, Information Illustrates Variability of Returns

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing the Fund’s average annual returns for 1 year, 5 years, and 10 years.

Performance, Availability Phone Number

rr_PerformanceAvailabilityPhone

1.800.543.0407

Performance, Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

www.TouchstoneInvestments.com

Performance, Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance does not necessarily indicate how it will perform in the future.

Bar Chart, Heading

rr_BarChartHeading

Institutional Money Market Fund Total Returns as of December 31

Bar Chart, Closing

rr_BarChartClosingTextBlock

Best Quarter:  3rd Quarter 2007 +1.33%        Worst Quarter:  3rd Quarter 2011 +0.03%

The year-to-date return for the Fund’s Class A shares as of December 31, 2012 is 0.15%.

Average Annual Returns, Caption

rr_AverageAnnualReturnCaption

Average Annual Total Returns For the period ended December 31, 2012

Touchstone Institutional Money Market Fund (Prospectus Summary) | Touchstone Institutional Money Market Fund | Institutional

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.20%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.20%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.40%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.20%

^[1]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.20%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-01-29

Expense Example, With Redemption, 1 Year

rr_ExpenseExampleYear01

20

Expense Example, With Redemption, 3 Years

rr_ExpenseExampleYear03

108

Expense Example, With Redemption, 5 Years

rr_ExpenseExampleYear05

204

Expense Example, With Redemption, 10 Years

rr_ExpenseExampleYear10

486

Annual Return 2003

rr_AnnualReturn2003

0.94%

Annual Return 2004

rr_AnnualReturn2004

1.04%

Annual Return 2005

rr_AnnualReturn2005

2.98%

Annual Return 2006

rr_AnnualReturn2006

4.99%

Annual Return 2007

rr_AnnualReturn2007

5.25%

Annual Return 2008

rr_AnnualReturn2008

3.42%

Annual Return 2009

rr_AnnualReturn2009

1.07%

Annual Return 2010

rr_AnnualReturn2010

0.29%

Annual Return 2011

rr_AnnualReturn2011

0.16%

Annual Return 2012

rr_AnnualReturn2012

0.15%

Year to Date Return, Label

rr_YearToDateReturnLabel

year-to-date return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Dec. 31, 2012

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.15%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2007

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

1.33%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter:

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2011

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.03%

Average Annual Returns, Label

rr_AverageAnnualReturnLabel

Institutional Money Market Fund

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

0.15%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

1.01%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

2.01%

[1] Touchstone Advisors, Inc. and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.20%. This expense limitation will remain in effect until at least January 29, 2014, but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. The terms of Touchstone Advisors' contractual waiver agreement provide that Touchstone Advisors is entitled to recover, subject to approval by the Fund's Board of Trustees, such amounts waived or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's operating expenses are below the expense limitation amount. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's prospectus for more information.

XML

Touchstone High Yield Fund (Prospectus Summary) | Touchstone High Yield Fund

TOUCHSTONE HIGH YIELD FUND SUMMARY

The Fund’s Investment Goal

The Touchstone High Yield Fund (the “Fund”) seeks to achieve a high level of income as its main goal.

Capital appreciation is a secondary consideration.

The Fund’s Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.  You may qualify for sales charge discounts for Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 or more in the Touchstone Funds.  More information about these and other discounts is available from your financial professional and in the section entitled “Choosing a Class of Shares” in the Fund’s prospectus on page 25 and in the Fund’s Statement of Additional Information (“SAI”) on page 46.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Touchstone High Yield Fund (USD $)	Class A	Class C	Class Y	Institutional
Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)	4.75%	none	none	none
Maximum Deferred Sales Charge (as a percentage of original purchase price or the amount redeemed, whichever is less)	none	1.00%	none	none
Wire Redemption Fee	15	15	15	15

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

Annual Fund Operating Expenses Touchstone High Yield Fund		Class A		Class C	Class Y	Institutional
Management Fees		0.52%		0.52%	0.52%	0.52%
Distribution (12b-1) Fees		0.25%	[1]	1.00%	none	none
Other Expenses		0.33%		0.40%	0.34%	0.43%
Total Annual Fund Operating Expenses		1.10%		1.92%	0.86%	0.95%
Fee Waiver and/or Expense Reimbursement	[2][3]	(0.11%)		(0.18%)	(0.12%)	(0.36%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	[2]	0.99%		1.74%	0.74%	0.59%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then, except as indicated, redeem 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 (reflecting any contractual fee waivers). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Assuming Redemption at End of Period

Expense Example (Touchstone High Yield Fund) Touchstone High Yield Fund (USD $)	Class A	Class C	Class Y	Institutional
Expense Example, With Redemption, 1 Year	571	277	76	60
Expense Example, With Redemption, 3 Years	798	586	262	267
Expense Example, With Redemption, 5 Years	1,042	1,020	465	490
Expense Example, With Redemption, 10 Years	1,742	2,229	1,050	1,133

Assuming No Redemption

Expense Example, No Redemption (USD $)	Touchstone High Yield Fund Class C
Expense Example, No Redemption, 1 Year	177
Expense Example, No Redemption, 3 Years	586
Expense Example, No Redemption, 5 Years	1,020
Expense Example, No Redemption, 10 Years	2,229

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 48% of the average value of its portfolio.

The Fund’s Principal Investment Strategies

The Fund normally invests at least 80% of its net assets (including borrowings for investment purposes) in non-investment-grade debt securities. This is a non-fundamental policy that can be changed by the Fund upon 60 days’ prior notice to shareholders. The Fund generally invests in non-investment-grade debt securities of domestic corporations. Non-investment-grade debt securities are higher risk, lower quality securities, often referred to as “junk bonds”, and are considered speculative. They are rated below BBB- by S&P and Fitch or below Baa3 by Moody’s. The Fund expects to have an average stated maturity of between 6 and 9 years, but it may vary to between 5 and 10 years.

In selecting securities for the Fund, the sub-advisor, Fort Washington Investment Advisors, Inc. (“Fort Washington”), analyzes the overall investment opportunities and risks in different industry sectors focusing on those industries that exhibit stability and predictability. Having developed certain industry biases resulting from the current macroeconomic environment, Fort Washington implements a process of elimination through which certain types of securities are removed from the list of initially selected securities due to their structure. The next step is to apply a rigorous credit selection process in order to identify securities that offer attractive investment opportunities. Once a security has been purchased, the credit analysis process is re-applied to each individual security in the Fund’s portfolio on a periodic basis or as new information becomes available to determine whether or not to keep a security in the Fund’s portfolio.

The Principal Risks

The Fund’s share price will fluctuate. You could lose money on your investment in the Fund and the Fund could also return less than other investments. The Fund is subject to the principal risks summarized below.

Non-Investment-Grade Debt Securities Risk: Non-investment-grade debt securities are sometimes referred to as “junk bonds” and are considered speculative with respect to their issuers’ ability to make payments of interest and principal. There is a high risk that the Fund could suffer a loss from investments in non-investment-grade debt securities caused by the default of an issuer of such securities. Part of the reason for this high risk is that, in the event of a default or bankruptcy, holders of non-investment-grade debt securities generally will not receive payments until the holders of all other debt have been paid. In addition, the market for non-investment-grade debt securities has, in the past, had more frequent and larger price changes than the markets for other securities. Non-investment-grade debt securities can also be more difficult to sell for good value.

Credit Risk: The securities in the Fund’s portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions. This could cause an issuer to fail to make timely payments of principal or interest, when due. This may cause the issuer’s securities to decline in value.

Interest Rate Risk: As interest rates rise, the value of fixed income securities the Fund owns will likely decrease. Longer-term securities are generally more volatile, so the longer the average maturity or duration of these securities, the greater their price risk. Duration is a measure of the expected life, taking into account any prepayment or call features of the security, of a fixed income security that is used to determine the price sensitivity of the security for a given change in interest rates. Specifically, duration is the change in the value of a fixed income security that will result from a 1% change in interest rates, and generally is stated in years. Maturity, on the other hand, is the date on which a fixed income security becomes due for payment of principal.

Management Risk: Touchstone Advisors, Inc., the Fund’s advisor (the “Advisor”), engages one or more sub-advisors to make investment decisions on its behalf for a portion or all of the Fund. There is a risk that the Advisor may be unable to identify and retain sub-advisors who achieve superior investment returns relative to other similar sub-advisors. The value of your investment may decrease if the sub-advisor’s judgment about the attractiveness, value or market trends affecting a particular security, issuer, industry or sector or about market movements is incorrect.

As with any mutual fund, there is no guarantee that the Fund will achieve its investment goal.

The Fund’s Performance

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual total returns for 1 year, 5 years, and 10 years compare with the Merrill Lynch U.S. High Yield Cash Pay Index. The bar chart does not reflect any sales charges, which would reduce your return. The Fund’s past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.

High Yield Fund — Class A Total Returns as of December 31

Best Quarter:  2nd Quarter 2009 +22.23%        Worst Quarter:  3rd Quarter 2008 -20.40%

The year-to-date return for the Fund’s Class A shares as of December 31, 2012 is 12.91%.

Average Annual Total Returns For the period ended December 31, 2012

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.  Your actual after-tax returns may differ from those shown and depend on your tax situation.  The after-tax returns do not apply to shares held in an IRA, 401(k), or other tax-deferred account.  The after-tax returns shown in the table are for Class A shares only.  The after-tax returns for other classes of shares offered by the Fund will differ from the Class A after-tax returns.

Class A shares began operations on May 1, 2000, Class C shares began operations on May 23, 2000, Class Y shares began operations on February 1, 2007 and Institutional Class shares began operations on January 27, 2012.

Average Annual Total Returns Touchstone High Yield Fund	Average Annual Returns, Label	Average Annual Returns, 1 Year		Average Annual Returns, 5 Years		Average Annual Returns, 10 Years
Class A	Class A Return Before Taxes	7.59%		7.99%		8.09%
Class A After Taxes on Distributions	Class A Return After Taxes on Distributions	5.25%		4.85%		5.10%
Class A After Taxes on Distributions and Sale of Fund Shares	Class A Return After Taxes on Distributions and Sale of Fund Shares	4.86%		4.88%		5.12%
Class C	Class C Return Before Taxes	11.06%		8.20%		7.80%
Class Y	Class Y Return Before Taxes	13.16%	[1]	9.38%	[1]	8.82%	[1]
Institutional	Institutional Return Before Taxes	13.34%	[1]	9.12%	[1]	8.66%	[1]
Merrill Lynch U.S. High Yield Cash Pay Index	Merrill Lynch U.S. High Yield Cash Pay Index (reflects no deductions for fees, expenses or taxes)	15.44%		9.90%		10.23%

[1] The Fund is authorized under its 12b-1 plan for Class A shares to pay an annual fee of up to 0.35% of its average daily net assets for the sale and distribution of shares. The Fund currently intends to limit the amount of 12b-1 fees for Class A shares to a maximum of 0.25% per annum of the average daily net assets of Class A shares.

[2] Expenses shown above have been restated to reflect a change in the Fund's contractual fee waiver and will differ from the expenses reflected in the Fund's Annual Report for the fiscal year ended September 30, 2012.

[3] Touchstone Advisors, Inc. and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.99%, 1.74%, 0.74%, and 0.59% for Class A shares, Class C shares, Class Y shares, and Institutional Class shares, respectively. This expense limitation will remain in effect until at least January 29, 2014, but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the Fund shareholders. Touchstone Advisors is entitled to recoup, subject to approval by the Board of Trustees of the Fund, such amounts reduced or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's expenses are below the expense limitation. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's prospectus for more information.

[1] Class Y shares and Institutional Class shares performance was calculated using the historical performance of Class A shares for the periods prior to February 1, 2007 and January 27, 2012, respectively.

XML

Touchstone Institutional Money Market Fund (Prospectus Summary) | Touchstone Institutional Money Market Fund

TOUCHSTONE INSTITUTIONAL MONEY MARKET FUND SUMMARY

The Fund’s Investment Goal

The Touchstone Institutional Money Market Fund (the “Fund”) seeks high current income, consistent with liquidity and stability of principal.  The Fund is a money market fund, which seeks to maintain a constant share price of $1.00 per share.

The Fund’s Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:

Shareholder Fees (fees paid directly from your investment) None

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

Annual Fund Operating Expenses		Touchstone Institutional Money Market Fund Institutional
Management Fees		0.20%
Distribution (12b-1) Fees		none
Other Expenses		0.20%
Total Annual Fund Operating Expenses		0.40%
Fee Waiver and/or Expense Reimbursement	[1]	(0.20%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.20%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.  The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem 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 (reflecting any contractual fee waivers).  Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Touchstone Institutional Money Market Fund Institutional
Expense Example, With Redemption, 1 Year	20
Expense Example, With Redemption, 3 Years	108
Expense Example, With Redemption, 5 Years	204
Expense Example, With Redemption, 10 Years	486

The Fund’s Principal Investment Strategies

The Fund invests in U.S. government securities and high-quality money market instruments rated in one of the top two short-term rating categories or determined by the sub-advisor, Fort Washington Investment Advisors, Inc. (“Fort Washington”) to be of comparable quality. The Fund’s investments may include:

·Bank obligations, including certificates of deposit, bankers’ acceptances and time deposits

·U.S. government securities issued directly by the U.S. Treasury or by agencies of the U.S. government

·Short-term corporate debt securities

·Short-term municipal securities

·Variable and floating rate securities

·Repurchase agreements

The Fund maintains a dollar-weighted average portfolio maturity of 60 days or less and a dollar-weighted average life of 120 days or less, and it purchases only U.S. dollar-denominated securities with maturities of 397 days or less.

The Fund will hold at least 10% of its total assets in “Daily Liquid Assets” and at least 30% of its total assets in “Weekly Liquid Assets.”  “Daily Liquid Assets” include cash (including demand deposits), direct obligations of the U.S. government and securities (including repurchase agreements) that will mature or are subject to a demand feature that is exercisable and payable within one business day.  “Weekly Liquid Assets” include cash (including demand deposits), direct obligations of the U.S. government, agency discount notes with remaining maturities of 60 days or less, and securities (including repurchase agreements) that will mature or are subject to a demand feature that is exercisable and payable within 5 business days.  The Fund is also subject to quality and diversification requirements of Rule 2a-7 under the Investment Company Act of 1940, as amended, which are designed to help it maintain a constant share price of $1.00 per share.

The Principal Risks

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”), the U.S. Treasury or any other government agency.  Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.  There is no guarantee that the Fund will be able to avoid a negative yield.

Market Risk:  Adverse developments affecting banks could have a negative effect on the value of the Fund’s portfolio securities.  This could cause the value of the Fund’s shares to decrease to a price less than $1.00 per share.  During periods of extreme market volatility, prices of securities held by the Fund may be negatively impacted due to imbalances between credit market participants seeking to sell the same or similar securities and market participants willing or able to buy such securities.  As a result, the market prices of securities held by the Fund could go down, at times without regard to the financial condition of or specific events impacting the issuer of the security.  A significant enough market disruption or drop in market prices of securities held by the Fund, especially at a time during which the Fund needs to sell securities to meet shareholder redemption requests, could cause the value of the Fund’s shares to decrease to a price less than $1.00 per share.

Credit Risk: The securities in the Fund’s portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions.  This could cause an issuer to fail to make timely payments of principal or interest, when due.  This may cause the issuer’s securities to decline in value.

Interest Rate Risk: The yield of the Fund will vary from day to day due to changes in interest rates. Generally, the Fund’s yield will increase when interest rates increase and will decrease when interest rates decrease.

Management Risk: Touchstone Advisors, Inc., the Fund’s advisor (the “Advisor”), engages one or more sub-advisors to make investment decisions on its behalf for a portion or all of each Fund.  There is a risk that the Advisor may be unable to identify and retain sub-advisors who achieve superior investment returns relative to other similar sub-advisors.  The value of your investment may decrease if the sub-advisor’s judgment about the attractiveness, value or market trends affecting a particular security, issuer, industry or sector or about market movements is incorrect.

U.S. Government Agencies Securities Risk:  Certain U.S. government agency securities are backed by the right of the issuer to borrow from the U.S. Treasury while others are supported only by the credit of the issuer or instrumentality. While the U.S. government is able to provide financial support to U.S. government-sponsored agencies or instrumentalities, no assurance can be given that it will always do so.  Such securities are neither issued nor guaranteed by the U.S. Treasury.

As with any mutual fund, there is no guarantee that the Fund will achieve its investment goal.

The Fund’s Performance

The bar chart and performance table below illustrate some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing the Fund’s average annual returns for 1 year, 5 years, and 10 years.  The Fund’s past performance does not necessarily indicate how it will perform in the future.  Updated performance and current yield information is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.

Institutional Money Market Fund Total Returns as of December 31

Best Quarter:  3rd Quarter 2007 +1.33%        Worst Quarter:  3rd Quarter 2011 +0.03%

The year-to-date return for the Fund’s Class A shares as of December 31, 2012 is 0.15%.

Average Annual Total Returns	Average Annual Returns, Label	Average Annual Returns, 1 Year	Average Annual Returns, 5 Years	Average Annual Returns, 10 Years
Touchstone Institutional Money Market Fund Institutional	Institutional Money Market Fund	0.15%	1.01%	2.01%

[1] Touchstone Advisors, Inc. and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.20%. This expense limitation will remain in effect until at least January 29, 2014, but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. The terms of Touchstone Advisors' contractual waiver agreement provide that Touchstone Advisors is entitled to recover, subject to approval by the Fund's Board of Trustees, such amounts waived or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's operating expenses are below the expense limitation amount. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's prospectus for more information.