MENTAL MODEL · M0995

Sequence of Returns Risk

BusinessmediumEntrepreneurship

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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Refers to the impact of the order of investment returns on final wealth. Even if the average annualized return is the same, if a significant downturn occurs early in retirement (a bad sequence), the principal can be quickly depleted, leading to ruin; conversely, it can be sustainable.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Emphasize timing and luck. It reminds us that averages can be misleading. Experiencing setbacks at life's turning points (such as early entrepreneurship or early retirement) has a far greater destructive power than setbacks during stable periods, thus requiring more conservative buffer strategies.

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Anchor fast decisions

Sequence risk arises from the combination of 'withdrawals/contributions' and 'market volatility': during the accumulation phase, dollar-cost averaging after a decline can buy more shares, which is beneficial in the long run; but during the retirement withdrawal phase, if a major downturn occurs early, selling at low prices permanently loses shares, and subsequent recoveries cannot compensate for the withdrawn principal, leading to 'principal depletion.' With the same average return but different sequences of volatility, final wealth can differ dramatically. The harm is most significant when the withdrawal rate is fixed and the investment horizon is long.

MINIMUM ACTION

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Practice this model in one real situation:

Step 1: Distinguish life stages: sequence risk is low during accumulation, and greatest near retirement and early retirement. Step 2: Adopt a more conservative allocation for retirement portfolios (increase bond/cash ratio) to buffer early declines. Step 3: Establish a 'buffer bucket': use cash or short-term bonds to cover 1-3 years of expenses, avoiding forced stock sales during bear markets. Step 4: Dynamic withdrawals (e.g., a 'safe withdrawal rate' based on portfolio performance), withdrawing less when markets are poor. Step 5: Conduct Monte Carlo simulations to assess bankruptcy probability rather than only looking at average returns.

Check to track your progress (stored locally)

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Source support: Explicit

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investopedia.comhttps://www.investopedia.com/terms/s/sequence-risk.aspZH · Explicit
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