👉 In finance, an "undiversified" portfolio is a type of investment where there are more than one asset class or security in the portfolio. This means that each of these assets has its own risk profile and returns, rather than being managed by a single, centralized risk manager. For example, let's say you have two stocks: Apple (AAPL) and Microsoft (MSFT). These two companies have different market capitalizations, but they both have strong technological and consumer-facing businesses.