Preparing a personal portfolio ahead of potential market crashes involves reallocating capital into defensive asset classes, liquid cash equivalents, and principal-protected financial instruments designed to preserve purchasing power. Investors typically move capital into short-term government treasury bills, high-yield FDIC-insured savings accounts, money market funds, and high-grade municipal bonds that offer guaranteed yields independent of stock market volatility. Additionally, defensive equities in consumer staples, utilities, healthcare, and physical precious metals like gold are historically favored as reliable safe-haven assets capable of hedging against sudden equity pullbacks and broader macroeconomic shocks.