<human>:  What is the best way to invest $100,000 for retirement?
<bot>: The best way to invest $100,000 for retirement depends on your individual retirement goals, timeline and risk tolerance. Some conservative retirement investments may include investing in Certificates of Deposit or Treasury securities, or purchasing shares in an index fund or a retirement income fund. You may want to speak to a financial advisor to determine the best investment strategy for your retirement goals.