This tool is used to assess the potential impact that the order and timing of investment returns can have on a portfolio, particularly during the withdrawal phase, such as in retirement. It helps to model various market scenarios and their possible effects on the longevity of assets. For instance, consider two individuals with identical portfolios and average investment returns over a 30-year period. If one individual experiences negative returns early in retirement while making withdrawals, their portfolio may deplete much faster than the other individual who experiences positive returns early on, even if both ultimately achieve the same average return.
Its significance lies in providing a clearer understanding of the vulnerabilities retirees and those nearing retirement face. A period of poor market performance coinciding with initial withdrawals can severely diminish capital, potentially leading to premature depletion of retirement funds. Historically, traditional retirement planning often focused primarily on average returns, overlooking the potentially devastating effects of unfavorable sequences. By using this analytical tool, individuals can gain valuable insight into the probability of their portfolio lasting through retirement under different market conditions and withdrawal strategies.
