This document discusses the debate between active and passive portfolio management. With active management, a manager tries to beat market benchmarks by selecting individual securities. Passive management attempts to match benchmark performance at low cost through index funds. Proponents of each argue their approach provides better returns. The document also describes blending the approaches through core-satellite asset allocation, where low-cost index funds form the portfolio "core" and actively managed funds are "satellites" with potential to boost returns or reduce risk. Before investing, carefully consider investment objectives, risks, charges and expenses outlined in a fund's prospectus.