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A portfolio manager is either a person who makes investment decisions using money other people have placed under his or her control or a person who manages a financial institution's asset and liability (loan and deposit) portfolios. On the investments side, they work with a team of analysts and researchers, and are ultimately responsible for establishing an investment strategy, selecting appropriate investments and allocating each investment properly for a fund- or asset-management vehicle.
Portfolio managers are presented with investment ideas from internal buy-side analysts and sell-side analysts from investment banks. It is their job to sift through the relevant information and use their judgment to buy and sell securities. Throughout each day, they read reports, talk to company managers and monitor industry and economic trends looking for the right company and time to invest the portfolio's capital.
A team of analysts and researchers are ultimately responsible for establishing an investment strategy, selecting appropriate investments and allocating each investment properly for a fund or asset-management vehicle.
Portfolio managers make decisions about investment mix and policy, matching investments to objectives, asset allocation for individuals and institutions, and balancing risk against performance.
Portfolio management is about strengths, weaknesses, opportunities and threats in the choice of debt vs. equity, domestic vs. international, growth vs. safety, and other tradeoffs encountered in the attempt to maximize return at a given appetite for risk.
In the case of mutual and exchange-traded funds (ETFs), there are two forms of portfolio management: passive and active. Passive management simply tracks a market index, commonly referred to as indexing or index investing. Active management involves a single manager, co-managers, or a team of managers who attempt to beat the market return by actively managing a fund's portfolio through investment decisions based on research and decisions on individual holdings. Closed-end funds are generally actively managed.