Invesco Municipal Opportunity Trust DEFA14A Additional proxy soliciting materials

By Internet

You may cast your vote by logging onto the Web address listed on the enclosed proxy card. Have your proxy card in hand in order to follow the instructions given on the Web site.

By Telephone

Call toll-free 1.800.337.3503. Enter the control number listed on the proxy card and follow the recorded instructions.

By Mail

Complete and sign the proxy card and return it in the postage-paid envelope provided in the shareholder mailing.

In Person

The shareholder meeting will be held on July 17, 2010. Please notify Invesco at 1.800.952.3502 if you plan to attend this meeting.

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Filed by the Registrantþ
Filed by a Party other than the Registranto

Check the appropriate box:

o		Preliminary Proxy Statement
o		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o		Definitive Proxy Statement
þ		Definitive Additional Materials
o		Soliciting Material Pursuant to § 240.14a-11(c) or § 240.14a-12

Invesco Van Kampen California Value Municipal Income Trust
Invesco Van Kampen Municipal Opportunity Trust
Invesco Van Kampen Municipal Trust
Invesco Van Kampen Pennsylvania Value Municipal Income Trust
Invesco Van Kampen Trust For Insured Municipals
Invesco Van Kampen Trust For Investment Grade Municipals

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

þ		No fee required.
o		Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

	1)		Title of each class of securities to which transaction applies:




	2)		Aggregate number of securities to which transaction applies:




	3)		Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):




	4)		Proposed maximum aggregate value of transaction:




	5)		Total fee paid:

o		Fee paid previously with preliminary materials.

o		Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

	1)		Amount Previously Paid:




	2)		Form, Schedule or Registration Statement No.:




	3)		Filing Party:




	4)		Date Filed:

Proxy Voting Information

Proxy statements were mailed in June, to shareholders of record as of the close of business on May 28, 2010, for the Invesco Van Kampen Closed-End Funds. Another proxy statement was mailed in June, to shareholders of record as of the close of business on June 7, 2010, for the Invesco Closed-End Funds. The purpose of these proxy statements, among other things, is to elect trustees of the funds. The proxy statement contains disclosure information about the proposal(s) for which votes have been solicited.

The shareholder meetings were held on July 16, 2010, but were adjourned until August 13, 2010 in order to solicit additional votes.

Although the shareholder meetings have been adjourned until August 13, 2010, you still have time to vote your fund’s shares. You can also access your Fund’s proxy statement, common questions regarding your Fund’s proposal, annual report, and semi-annual report by clicking on the fund name listed below.

Invesco Closed-End Funds (link will go to Invesco Proxy Information by Fund page)

Invesco Van Kampen Closed-End Funds (link will go to the Invesco Van Kampen Proxy Information page)

How to vote

You may cast your vote by any of the following methods.However you choose to vote, it is important that you vote now to save the expense of additional solicitations.

If you have any questions...

If you have questions on the proxy statement or the voting process, please contact your financial consultant or call Invesco toll-free at 1.800.952.3502 any business day between 8:00 a.m. and 5:00 p.m. CT.

If we have not received your proxy card after a reasonable amount of time, a representative from our proxy solicitation firm, Computershare Fund Services, may contact you to remind you to exercise your right to vote.

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Invesco Investment Services, Inc. 05/2010

Invesco Van Kampen Proxy Information by Fund

Invesco Van Kampen Municipal Trust

	1.		Please read the proxy statement in full. (PDF)

	2.		Access some typical questions that shareholders may have regarding the proxy statement. (PDF)

	3.		You may cast your vote by logging onto the Web address listed on the enclosed proxy card. Have your proxy card in hand in order to follow the instructions given on the Web site.