Doc White's rule for too much risk in an investment portfolio relates to what symptom?

The choice that indicates a symptom of too much risk in an investment portfolio is the concern of worrying about stock values at night. This symptom reflects a high level of anxiety and stress regarding investments, which is often associated with risky portfolios. When individuals invest in high-risk assets, they may find themselves preoccupied with the volatility of their investments. This concern can lead to sleepless nights and increased emotional distress, suggesting that the individual is not comfortable with the level of risk they are taking on.

In financial planning, it's essential to assess not just the mathematical aspects of risk like volatility and potential returns but also the emotional impact on the investor. If someone finds themselves losing sleep over their investments, it may signal that their risk tolerance has been exceeded, and adjustments should be considered to align with their comfort level.

Other options may indicate different behaviors or strategies in relation to investing but do not directly relate to the psychological symptom of excessive risk, such as frequent trading or consulting a financial advisor. Low diversification might indicate poor risk management, but it does not inherently reflect an individual's emotional response to investment risk.