Citywire AA-rated Giles Hargreave's Nano-Cap Growth fund has soft-closed after attracting £90 million.
The fund, which launched earlier this month, invests in some of the UK's smallest listed companies, focusing on firm's with a market capitalisation of below £75 million.
'Support for the fund during the launch period has been exceptionally strong and in the interests of investors we have taken the decision to act to manage inflows,' said a spokesman for Marlborough Fund Managers.
'Nano-cap companies offer excellent long-term growth potential but their size also means that the capacity of the fund is limited. By soft closing the fund we are acting to ensure it remains at a size where the managers can use their specialist skills and experience to maximum effect.'
Hargreave is one of the most consistently top performing managers in the Citywire database.