Portfolio management involves constructing a collection of investments that minimizes total risk while maximizing returns. The objective is to achieve a chosen level of return with the least possible risk. A portfolio combines different assets that have their own individual risks and returns in order to reduce overall risk through diversification. Portfolio management aims to balance safety, steady income, capital appreciation, marketability, liquidity, and tax planning to meet investors' objectives. It is an ongoing process of developing and implementing investment strategies, reviewing performance, and evaluating results.