Asset allocation is one of the most important tools retirees can use to reduce portfolio volatility and protect their income. As investors transition from saving to spending, large market swings become more dangerous because selling during downturns can permanently damage retirement savings. A balanced mix of stocks, bonds, and cash helps smooth returns while still allowing portfolios to grow enough to fight inflation. Most retirees benefit from holding 30–50% in stocks for long-term growth and 40–60% in bonds to stabilize the portfolio during market declines. High-quality bonds and dividend-paying stocks can provide reliable income and reduce the need to sell assets in bear markets. Cash reserves covering one to two years of expenses offer flexibility and peace of mind during market stress. Mutual funds such as balanced funds and target-date retirement funds simplify diversification and automatic rebalancing. Regular rebalancing helps control risk by preventing stocks from becoming too large a portion of the portfolio. Lower volatility allows retirees to stay invested and avoid emotional decisions during market crashes. Ultimately, the best retirement asset allocation is one that balances growth and stability and can be confidently maintained through all market conditions