SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER
                      Pursuant to Rule 13a-16 or 15d-16 Under
                       the Securities Exchange Act of 1934

                         For the month of September, 2006
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                        Commission File Number 001-13908
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                                  AMVESCAP PLC
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                 (Translation of registrant's name into English)

                 30 Finsbury Square, London EC2A 1AG, ENGLAND
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                    (Address of principal executive offices)


Indicate by check mark whether the registrant files or will file annual reports
under cover Form 20-F or Form 40-F.

                        Form 20-F  X             Form 40-F
                                 -----                    -----

Indicate by check mark if the registrant is submitting the Form 6-K in paper as
permitted by Regulation S-T Rule 101(b)(1):
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Indicate by check mark if the registrant is submitting the Form 6-K in paper as
permitted by Regulation S-T Rule 101(b)(7):
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Indicate by check mark whether by furnishing the information contained in this
Form, the registrant is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

                        Yes        No   X
                           -------   -------

If "Yes" is marked, indicate below the file number assigned to the registrant in
connection with Rule 12g3-2(b): 82-     N/A
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Description of document filed:  PowerShares Announcement
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For Immediate Release
Contact:       Ivy McLemore, Director of Communications, AIM Investments
Phone:         + 1 713-214-1904 (country-regionplaceU.S.)



        AMVESCAP Completes Acquisition of PowerShares Capital Management


CityplaceAtlanta -- September 18, 2006 -- AMVESCAP PLC today announced it has
completed its previously announced acquisition of PowerShares Capital Management
LLC, a leading provider of exchange-traded funds (ETFs).

"The addition of PowerShares ETFs expands AMVESCAP's ability to offer investment
solutions to investors and their advisors," said PersonNameMarty Flanagan,
president and chief executive officer of AMVESCAP. "The powerful combination of
PowerShares' exciting ETFs, AIM Investments' broad range of actively managed
mutual funds and our top-ranked money market funds offers advisors a uniquely
comprehensive array of investment choices from which to build better portfolios
for their clients."

PowerShares, whose family of 37 distinctive ETFs will now be distributed by AIM
Investments, manages $5.9 billion in assets (as of June 30, 2006).

"The combination of PowerShares and AIM creates one of the broadest financial
product suites available anywhere and the largest and most experienced ETF
distribution force in the country-regionplaceU.S. I am looking forward to
working together on the tremendous opportunities that lie ahead of us," said H.
PersonNameBruce Bond, president and chief executive officer of PowerShares
Capital Management.

Since their inception in 1993, ETFs in the country-regionplaceUnited States have
grown to $336.92 billion (as of July 30, 2006), according to the Investment
Company Institute.

"We're excited to provide PowerShares ETFs, alongside our wide range of mutual
funds, for investors and their advisors," said Phil Taylor, AMVESCAP's senior
managing director for North American retail. "AIM's brand strength, broad
distribution capabilities and long-standing relationships with advisors will
make PowerShares ETFs available to a larger group of investors. These
complementary investment products greatly expand AIM's product line and our
ability to provide a full range of investment solutions."

AMVESCAP is a leading independent global investment manager, dedicated to
helping people worldwide build their financial security. Operating under the
AIM, AIM Trimark, INVESCO, Invesco Perpetual and Atlantic Trust brands, AMVESCAP
strives to deliver outstanding products and services through a comprehensive
array of enduring investment solutions for our retail, institutional and private
wealth management clients around the world. The company is listed on the
CityLondon, StateNew York and CityplaceToronto stock exchanges under the symbol
"AVZ." Additional information is available at www.amvescap.com.

AIM Investments is a registered service mark of A I M Management Group Inc. A I
M Distributors, Inc. is the distributor for the retail mutual funds and
exchange-traded funds represented by AIM Investments.

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This release may include statements that constitute "forward-looking statements"
under the placecountry-regionUnited States securities laws. Forward-looking
statements include information concerning possible or assumed future results of
our operations, earnings, liquidity, cash flow and capital expenditures,
industry or market conditions, assets under management, acquisition activities
and the effect of completed acquisitions, debt levels and the ability to obtain
additional financing or make payments on our debt, regulatory developments,
demand for and pricing of our products and other aspects of our business or
general economic conditions. In addition, when used in this report, words such
as "believes," "expects," "anticipates," "intends," "plans," "estimates,"
"projects" and future or conditional verbs such as "will," "may," "could,"
"should" and "would," or any other statement that necessarily depends on future
events, are intended to identify forward-looking statements.

Forward-looking statements are not guarantees of performance. They involve
risks, uncertainties and assumptions. Although we make such statements based on
assumptions that we believe to be reasonable, there can be no assurance that
actual results will not differ materially from our expectations. We caution
investors not to rely unduly on any forward-looking statements. In connection
with any forward-looking statements, you should carefully consider the areas of
risk described in our most recent annual report on Form 20-F, as filed with the
United States Securities and Exchange Commission (SEC). You may obtain these
reports from the SEC Web site at www.sec.gov.


A I M Distributors, Inc. is the distributor of the PowerShares Exchange-Traded
Fund Trust.




                                   SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.



                                                AMVESCAP PLC
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                                                (Registrant)



Date  18 September, 2006                   By   /s/ Michael S. Perman
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                                                (Signature)

                                            Michael S. Perman
                                            Company Secretary