ACTIVE ASSETS INSTITUTIONAL MONEY TRUST
522 Fifth Avenue
New York, New York 10036
VIA EDGAR
July 16, 2012
Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549
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Re: |
Active Assets Institutional Money Trust |
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File Nos. 333-91725; 811-09713 |
Ladies and Gentlemen:
On behalf of Active Assets Institutional Money Trust (Registrant), we hereby submit for filing pursuant to Rule 497(e) under the Securities Act of 1933, as amended, exhibits containing interactive data format risk/return summary information for the Registrant. These exhibits contain the risk/return summary information in the prospectuses for the Registrant dated October 31, 2011. The purpose of this filing is to submit the XBRL information from the 497(e) filing dated June 26, 2012 for the Registrant.
If you have any questions, please feel free to contact me at 212.296.6982 (tel) or 212.404.4691 (fax).
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Very truly yours, |
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/s/ Edward Meehan, Jr. |
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Edward Meehan, Jr. |
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Assistant Secretary |
Enclosures
cc: Stefanie V. Chang Yu, Esq.
| ACTIVE ASSETS INSTITUTIONAL MONEY TRUST (Prospectus Summary): | ACTIVE ASSETS INSTITUTIONAL MONEY TRUST |
| ACTIVE ASSETS INSTITUTIONAL MONEY TRUST |
Morgan Stanley JUNE 26, 2012 Supplement SUPPLEMENT DATED JUNE 26, 2012 TO THE PROSPECTUSES OF Effective June 25, 2012, Morgan Stanley Investment Management Inc. entered into a Sub-Advisory Agreement with Morgan Stanley Investment Management Limited with respect to Active Assets Institutional Government Securities Trust and Active Assets Institutional Money Trust (the "Funds"). As a result, the following changes to the Prospectus are required:
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| The second sentence of the first paragraph of the section of the Prospectus entitled "Fund Summaries—Active Assets Institutional Money Trust—Principal Investment Strategies" is hereby deleted and replaced with the following: |
In selecting investments, the Adviser and/or Sub-Adviser seek to maintain the Fund's share price at $1.00.
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PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE.
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| Label | Element | Value |
|---|---|---|
| Risk/Return: | rr_RiskReturnAbstract | |
| Prospectus Date | rr_ProspectusDate | Oct. 31, 2011 |
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ACTIVE ASSETS INSTITUTIONAL MONEY TRUST (Prospectus Summary): | ACTIVE ASSETS INSTITUTIONAL MONEY TRUST
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| Risk/Return: | rr_RiskReturnAbstract | |
| Risk/Return, Heading | rr_RiskReturnHeading | ACTIVE ASSETS INSTITUTIONAL MONEY TRUST |
| Supplement Text | ck0001096962_SupplementTextBlock | Morgan Stanley JUNE 26, 2012 Supplement SUPPLEMENT DATED JUNE 26, 2012 TO THE PROSPECTUSES OF Effective June 25, 2012, Morgan Stanley Investment Management Inc. entered into a Sub-Advisory Agreement with Morgan Stanley Investment Management Limited with respect to Active Assets Institutional Government Securities Trust and Active Assets Institutional Money Trust (the "Funds"). As a result, the following changes to the Prospectus are required:
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| Investment Strategy, Heading | rr_StrategyHeading | The second sentence of the first paragraph of the section of the Prospectus entitled "Fund Summaries—Active Assets Institutional Money Trust—Principal Investment Strategies" is hereby deleted and replaced with the following: |
| Investment Strategy, Narrative | rr_StrategyNarrativeTextBlock | In selecting investments, the Adviser and/or Sub-Adviser seek to maintain the Fund's share price at $1.00.
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| Supplement Closing | ck0001096962_SupplementClosingTextBlock | PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE.
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ACTIVE ASSETS INSTITUTIONAL MONEY TRUST | ACTIVE ASSETS INSTITUTIONAL MONEY TRUST
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| Risk/Return: | rr_RiskReturnAbstract | |
| Trading Symbol | dei_TradingSymbol | avixx |
| Label | Element | Value |
|---|---|---|
| Risk/Return: | rr_RiskReturnAbstract | |
| Document Type | dei_DocumentType | Other |
| Document Period End Date | dei_DocumentPeriodEndDate | Jun. 26, 2012 |
| Registrant Name | dei_EntityRegistrantName | ACTIVE ASSETS INSTITUTIONAL MONEY TRUST |
| Central Index Key | dei_EntityCentralIndexKey | 0001096962 |
| Amendment Flag | dei_AmendmentFlag | false |
| Document Creation Date | dei_DocumentCreationDate | Jun. 26, 2012 |
| Document Effective Date | dei_DocumentEffectiveDate | Jun. 26, 2012 |
| Prospectus Date | rr_ProspectusDate | Oct. 31, 2011 |