How One Losing Stock Can Affect the Portfolio
One of the most important concepts in portfolio management is understanding how a single underperforming or losing stock can negatively affect the performance of an entire investment portfolio. Investors often focus on the number of stocks that are performing well compared with those that are performing poorly. However, the overall performance of a portfolio does not depend simply on how many investments generate positive or negative returns. It depends on the size of each investment, its contribution to total returns, …