Moving a 401(k) into bonds can make sense if you are nearing retirement, need to preserve capital, or have a low tolerance for stock market volatility. However, it may be a poor choice if you are decades from retirement, reacting to a market downturn, or giving up long-term growth that stocks typically provide. The right move depends on your time horizon, risk tolerance, current asset allocation, and overall retirement plan. A qualified financial advisor can help you evaluate your specific situation before making large allocation changes.