This chapter provides a comparison of the two major asset management strategies: active vs passive. It begins with an overview of passive management, explaining its reliance on market indices and low-cost structures. It then covers active management, which focuses mostly on the outperformance through the selection of investments. A comparative analysis follows, examining each approach, also considering the sustainability sphere. Finally, it offers guidance on choosing the right strategy, based on client goals and market conditions. Asset management is the practice of managing a client’s financial capital through investments, with the primary goal of growing wealth over time. It is typically carried out by professionals and organizations such as portfolio managers, asset management firms, banks, and investment advisors. Asset management is broadly categorized into two major strategies: active and passive. These strategies differ significantly in their approaches, costs, and levels of transparency.