A high-profile boutique asset manager is in the process of liquidation after it failed to attract enough investors to its portfolio due to the small size of its funds.

Netherlands and London-based Aethra Asset Management, founded in 2008 by two former employees of Dutch bank ABN Amro, was forced to close its funds and return the money to investors as inflows had failed to provide a "sustainable economic environment", according to a statement by the firm.