The Plain-English Definition
Sequence of returns risk (also called sequence risk) is the danger that the order of investment returns — not just the average — can permanently damage a retirement portfolio when withdrawals are being made.
During the accumulation phase (while you are working and saving), the sequence of returns does not matter much. A bad year followed by good years produces the same ending balance as good years followed by a bad year, because you are adding money, not taking it out.
In retirement, the math reverses. When you are withdrawing money regularly, a major market decline forces you to sell more shares at depressed prices to fund the same income. Those shares are gone permanently — they cannot participate in the recovery. This is the sequence risk trap.
A Concrete Example
Two retirees, same average return, very different outcomes
Both retire with $1,000,000 and withdraw $50,000/year. Both earn an average of 6% per year over 20 years.
Retiree A experiences strong returns early (10%, 12%, 8%) and a major decline later (−30% in year 15). Portfolio lasts well past 30 years.
Retiree B experiences the same returns in reverse — the −30% decline hits in year 2. Despite the same average return, the portfolio runs out of money in year 17.
The difference is not the average return. It is the sequence. Early losses combined with ongoing withdrawals create a compounding deficit that later gains cannot overcome.
Why Sequence Risk Is Highest in the First 10 Years of Retirement
Research consistently shows that the first 10 years of retirement are the most vulnerable to sequence risk. A major market decline in years 1–5 of retirement can permanently impair a portfolio's ability to sustain withdrawals for 25–30 years, even if the market fully recovers. A similar decline in years 20–25 has a much smaller impact because the portfolio has had time to grow and fewer withdrawal years remain.
This is why the years immediately before and after retirement — sometimes called the "retirement red zone" — require the most careful risk management.
Strategies to Reduce Sequence of Returns Risk
- Cash reserve / buffer: Maintain 1–2 years of living expenses in cash or short-term bonds. During a market decline, draw from the buffer instead of selling equities at depressed prices.
- Bucket strategy: Divide assets into short-term (cash, 1–3 years), medium-term (bonds, 3–10 years), and long-term (equities, 10+ years) buckets. Each bucket has a different purpose and risk level.
- Guaranteed income floor: Social Security, pensions, and annuities provide income that does not require portfolio withdrawals. The more of your essential expenses covered by guaranteed income, the less vulnerable you are to sequence risk.
- Flexible withdrawal strategy: Reduce discretionary withdrawals during market downturns. Even a 10–15% reduction in withdrawals during a bad year can significantly extend portfolio longevity.
- Glide path de-risking: Gradually reduce equity exposure in the years approaching and entering retirement to reduce the magnitude of potential early-retirement losses.
- Delay Social Security: Delaying Social Security to age 70 increases your guaranteed income floor and reduces the amount you need to withdraw from your portfolio in the early, vulnerable years of retirement.
Sequence Risk for Southeast Texas Retirees
Southeast Texas retirees with large 401(k) balances from energy sector careers face meaningful sequence risk if they retire into a market downturn without a protected income floor. The combination of a pension, optimized Social Security, and a well-structured portfolio can dramatically reduce sequence risk by ensuring that essential expenses are covered by guaranteed income — not portfolio withdrawals — during market downturns.
Richard Placette II at MRB Capital Group builds retirement income plans for Southeast Texas families that specifically address sequence risk through diversified income sources, strategic Social Security timing, and appropriate asset allocation for the retirement red zone.