A portfolio manager is an individual responsible for managing a group of investments or assets, with the goal of maximizing returns while minimizing risk. This can involve making decisions about buying and selling securities, setting investment strategies, and monitoring market trends to make informed choices that align with the overall goals of the portfolio. Portfolio managers often work for financial institutions or investment firms, where they manage funds on behalf of clients or shareholders. Their role requires a deep understanding of markets, economic conditions, and individual asset performance in order to make well-informed decisions that benefit their clients.