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From Wes Moss's book traces 4% retirement rule to William Bengen's 1994 research

How could Wes Moss's analysis of the 4% rule affect Fisher Investments?

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Wes Moss's book may refine Fisher Investments' retirement guidance Wes Moss's book, The Retire Sooner Method, traces the 4% rule back to William Bengen’s 1994 research, while also critiquing how high-yield ETFs can mislead retirees. The book suggests that the target withdrawal rate should be viewed as a dynamic or elastic zone, rather than a fixed number. Since Fisher Investments sponsors retirement guides, this new framework and the detailed success rates provided in the book could prompt the firm to update its advice and methodology to reflect a more nuanced view of portfolio survival.

Reported by 1 independent outlet Written Oct 24
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How it reaches Fisher Investments

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The facts so far

As reported. Each one links to where it comes from.

  • Wes Moss’s book traces the 4% rule to William Bengen’s 1994 research.247wallst.com
  • Bengen found that retirees taking 4% of their starting portfolio, adjusted for inflation, 'almost never ran out of money over a thirty-year retirement'.247wallst.com
  • The book describes the target withdrawal rate as 'a range, a dynamic or even elastic withdrawal target zone'.247wallst.com
  • At a 4% start, the book shows success rates ranging from 83% to 100% over 30 years.247wallst.com

Why it matters

For Fisher Investments, which sponsors retirement guides, the accuracy and relevance of its advice are paramount. The book introduces a more sophisticated, dynamic view of portfolio withdrawal, challenging the simplicity of the traditional 4% rule. This could necessitate a review of the underlying assumptions and methodologies used in the retirement guides to maintain their credibility with clients.

This discussion is part of a broader trend in financial advice where established rules are being refined by new research. The book highlights the difference between a distribution yield (what a fund paid over 12 months) and a safe withdrawal rate (what a portfolio can sustain over time), a distinction critical for investors using high-yield products like SPYI, JEPI, and DIVO.

What we don't know yet

  • Will Fisher Investments publicly acknowledge or incorporate the dynamic withdrawal zone concept?
  • How will the firm address the specific risks associated with high-yield ETF payouts in its current guides?

What would change this answer

Fisher Investments issues a public statement referencing the 4% rule's evolutionThis would confirm that the firm is actively reviewing and adapting its retirement guidance based on new research.
Wes Moss's book receives widespread adoption by financial plannersThis would increase the pressure on advisory firms, including Fisher Investments, to update their content to remain competitive and current.

Who else could feel it

Other possible ripples from the same event.

Reporting

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The full eventWes Moss's book traces 4% retirement rule to William Bengen's 1994 research Everything aboutFisher Investments

Brind's analysis is written by AI from the reporting linked above and can be wrong. This explainer is a possibility worth considering, not a forecast: steps marked as Brind's reasoning are not stated in the reporting. It is not investment advice; do your own research.