Lack of diversification in a portfolio is one of the most common mistakes investors make. (uk.scalable.capital)
This potential lack of diversification may result in heightened volatility of the value of your portfolio. (fidelity.com)
Other factors that raise the probability are lack of diversification of assets, a short term for repayment on the leverage, a run on the bank, or restrictive rules on what happens if your assets decline too much in value. (alephblog.com)