Mixed securities. E Fund's medium-sized growth hybrid securities investment fund, because of the great influence of market factors, will lead to the ups and downs of this type of valuation, with a drop of 5%, so it is because of the mixed securities in the market. Securities investment fund refers to a collective investment method that collects the funds of many investors through the sale of fund shares to form independent property, which is managed by fund custodians and fund managers and shares the benefits and risks of securities investment in the form of portfolio.