if i put $ 200 a month into that fund then i could see how well it does over time because the man or woman who manages the fund ( `` manage '' meaning he or she makes sure the right stocks are bought to produce the highest profits possible for the fund ) will often provide a quarterly report ( through the company they work for ) that details why they made some of the decisions they made that could affect profits as well as forecasts of things that may affect the fund in the future so that investors can have confidence that the fund manager is always trying to get the best roi for their clients ( investors ) .