There are two obstacles in the way of investment funds being traded on the stock exchange: a) Brokers are not interested in this procurement channel as it yields no sales commission, and b) it is no trivial matter and there are certain risks entailed when a market maker sets a real price, as the precise composition of the fund incl. all derivatives is unknown and the effort involved in calculating the NAV is immense. This means that it is only worthwhile for funds with low liquidity and/or that a corresponding spread is required. This limits the benefits for the end-client. However, this is very appropriate for index funds.
German: Fondshandel über Börse (347)
Source: SFO D15 2010 m. e. E., 24.04.2010