投资基金是一种建立在信用基础上的将众多投资者的不等额出资集中起来 ,委托专业管理者投资运用 ,获得的收益由投资者按出资比例分享的投资工具。投资基金按其投资方向的不同 ,可分为货币市场投资基金、证券投资基金和产业投资基金两部分。证券投资基金 ,是指发行基金证券所筹 An investment fund is a kind of investment instrument based on credit that brings the unequal investment of many investors together and entrusts the professional managers to invest and use the proceeds to be shared by the investors according to the proportion of the investment. Investment funds according to their different investment directions can be divided into money market investment funds, securities investment funds and industrial investment funds in two parts. Securities investment funds, refers to the fund raised by the issuance of securities