But add in rising inflation, interest rate hikes, supply-chain challenges, and geopolitical turmoil, and the situation is full of uncertainty that could have investors questioning whether they should sell their stocks. Understanding and focusing on the underlying fundamentals of your portfolio holdings, maintaining a long-term mindset, and realizing that market crashes are normal will help during times like these. I know it's not an easy task, but ignoring what stock prices are doing, and instead keeping an eye on metrics like user growth, sales, net income, and cash flow will make it easier to handle market turmoil.