What this lesson is about
Two investors with the exact same average return over 20 years can end up with dramatically different final results. Purely because of which years the good and bad returns happened to fall in.
Part 1 of 2
Two investors can have the same average annual return over 20 years, say 7% per year. Yet, they can end up with very different results. This happens because of which specific years the good and bad returns occur. This is known as sequence of returns risk. It highlights that the order in which returns happen, not just their long-run average, can greatly impact your final outcome. This is especially true when you’re making regular contributions or withdrawals alongside the investment returns.
The effect is clearer when withdrawals come into play. Picture two retirees. They each start retirement with the same portfolio balance and withdraw the same amount each year. They also experience the same annual returns, just in reverse order. The retiree who faces poor returns first sees their portfolio shrink due to both bad returns and ongoing withdrawals. When withdrawals happen during a depleted portfolio, they take a larger share of what’s left. This leaves much less capital to benefit from a possible recovery, even if that recovery does come. On the other hand, the retiree who experiences those poor returns last, after years of growth, is in a much better position. Their portfolio had already grown larger and could better handle the downturn before the bad returns hit.
Quick check
What is "sequence of returns risk"?
Sequence of returns risk is specifically about the timing/order of returns, not just their long-run average, mattering for the actual final outcome under certain conditions.
Part 2 of 2
Quick check
Why does sequence of returns risk matter more for someone making regular WITHDRAWALS from a portfolio than for someone simply holding an investment with no cash flows?
The interaction between withdrawals and a portfolio's value at any given moment is exactly the mechanism that makes the ORDER of returns matter, not just their average, specifically for someone drawing down a portfolio.
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