AMVESCAP Announces February 28, 2006 Assets Under Management.

LONDON -- AMVESCAP (NYSE:AVZ)(LSE:AVZ)(TSX:AVZ) today reported preliminary month-end assets under management of $404.4 billion. AMVESCAP intends to publish its assets under management on a monthly basis.

Ending Assets Under Management
                           -------------------------------------------
(In billions)                Feb 28,      Jan 31, 2006   Dec 31, 2005
                              2006(a)
                           -------------  ------------  --------------
Long-Term                        $348.8        $349.6          $338.9
Institutional Money Market        $55.6         $53.9           $47.4
                           -------------  ------------  --------------
Total                            $404.4        $403.5          $386.3
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(a) Preliminary - subject to adjustment.

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 high net worth clients around the world. The company is listed on the London, New York and Toronto stock exchanges with the symbol "AVZ." Additional information is available at www.amvescap.com.