AIM Trimark Investments today announced that it will be capping Trimark Global Endeavour Fund, Trimark Global Endeavour Class and Trimark Global Mid-Cap Equity Private Pool to new investors effective July 13 at 16:00 ET.

The funds invest in high-quality mid-cap businesses from anywhere in the world that are leaders in their industry, have a sustainable competitive advantage and strong future growth prospects.

Given the current level of assets under management and rates of net inflows in the funds, the portfolio management team has expressed concern that it is becoming increasingly difficult to accumulate meaningful positions in smaller-sized companies. A concentrated portfolio of 30 to 35 names representing the portfolio management team’s best investment ideas is a primary reason for the Funds’ success.

“Curbing inflows provides the best opportunity to deliver strong performance to existing investors,” says Phil Taylor, senior managing director and head of Invesco Plc’s North American retail business, including AIM Trimark. “Our decision to say no to new money is an extension of our ongoing commitment to serving investors’ best interests.”

Only existing investors continuing in the funds will be allowed to purchase additional securities and maintain their existing investment options in the funds after July 13.

Transfers in cash and purchase orders from new investors into the funds will not be accepted if received after 16:00 ET on July 13.