There is a valuation signal flashing in the stock market right now that has appeared only once in the last 155 years. The Shiller CAPE ratio, a measure of market valuation that smooths earnings over a full decade to filter out short-term noise, has crossed 40. The only other time this happened was December 1999, at the peak of the dot-com bubble. For pre-retirees in Fresno and Clovis managing portfolios built over decades of disciplined saving, this is the kind of signal that deserves a clear-eyed look. Not panic. Not a wholesale change of strategy. But a serious conversation about what elevated valuations have historically meant for forward returns and how a retirement portfolio should be positioned when the market is priced this way.
The CAPE ratio, formally known as the Cyclically Adjusted Price-to-Earnings ratio and developed by Yale economist Robert Shiller, is not a market timing tool. It does not tell you when a correction will happen or how severe it will be. What it does tell you, with a reasonable degree of historical reliability, is something about the return expectations an investor should carry going forward. When the ratio has been above 30 historically, average annual returns over the following decade have tended to land in the low single digits. Above 40, there is very little data, but what exists points in the same direction. The current reading sits well above the long-term historical average of approximately 17, meaning the market is priced at more than twice its typical valuation relative to earnings.
What the CAPE Ratio Measures and Why It Matters
A standard price-to-earnings ratio divides the current stock price by a single year of earnings. The problem is that earnings fluctuate significantly with economic cycles, which can make the ratio artificially low in boom years and artificially high during recessions. The CAPE ratio addresses this by using the average of ten years of inflation-adjusted earnings in the denominator, producing a smoothed view of valuation that is more useful for long-range assessment. When Shiller introduced the metric, his research showed a consistent relationship between extreme CAPE readings and weak forward returns over the subsequent decade or two. That relationship has held through multiple market cycles over 150 years of data.
The current reading above 40 places the market in territory it has occupied for only one other brief period in modern history. The dot-com era peak in late 1999 and early 2000 saw the ratio climb to approximately 44. What followed was a decline of roughly 50% in the S&P 500 over the next two and a half years, and a full decade of essentially flat returns when measured from the peak. The 2000 to 2009 period is sometimes called the lost decade for equities. An investor who retired at the peak of the dot-com market with a portfolio heavily weighted toward US stocks faced a fundamentally different retirement experience than projections from late 1999 would have suggested. That historical context is directly relevant today for anyone in Fresno or Clovis within ten years of their own retirement date.
Today Is Not 1999, But the Math Still Applies
There are meaningful differences between today's market and the dot-com peak, and they are worth acknowledging. The companies driving current valuations are not pre-revenue startups with no earnings and speculative business models. The Magnificent 7 generate substantial profits, hold dominant competitive positions, and have real pricing power. The AI investment cycle, while aggressive, is being funded by companies with genuine cash flows rather than venture capital. These are not trivial distinctions. A market supported by profitable, cash-generating businesses is structurally sounder than one built on projected revenues that never materialized. Many analysts argue, with some justification, that higher CAPE readings may be sustainable in a low-inflation, high-profit-margin environment.
The counterargument, and it is a serious one, is that valuation math does not fully care about business quality. If you pay 40 times ten-year average earnings for a collection of excellent businesses, your forward return is still compressed by the price you paid. A great company purchased at a great price produces a great investment outcome. The same great company purchased at an extreme price produces a mediocre one. The CAPE ratio is not predicting that the companies in the S&P 500 will fail. It is reflecting the price investors are currently paying for their earnings, and that price has historically been associated with lower returns over the periods that matter to someone funding a 20 or 30 year retirement.
What History Says About Forward Returns at These Levels
Shiller's own research on the relationship between CAPE and forward returns is worth understanding in some detail. When the ratio has been between 10 and 15, average 10-year annual returns have historically exceeded 10%. When it has been between 25 and 30, average returns drop toward 5 to 6% annually. Above 30, returns have averaged in the low single digits. These are not predictions for any specific period. They are historical averages across many different market environments, and any individual decade can vary significantly from the average. But for a pre-retiree in Fresno or Clovis who is building a retirement income plan, the expected return assumption embedded in that plan has real consequences for how much someone needs to save, how they structure withdrawals, and how much cushion their portfolio requires.
The sequence of returns risk is particularly relevant at elevated valuations. A portfolio that experiences significant losses in the first five years of retirement faces a fundamentally different recovery trajectory than one that experiences the same losses mid-retirement. If high CAPE readings are associated with increased probability of lower or negative returns in the near term, then someone retiring today into a CAPE above 40 faces a different risk profile than someone who retired in 2010, when the ratio had corrected to a much more modest level. This is not cause for alarm. It is cause for thoughtful portfolio construction that accounts for the environment in which the retirement is actually beginning.
What This Means for a Retirement Portfolio Today
The practical implication of elevated CAPE readings is not that investors should sell equities or abandon long-term ownership of productive businesses. History shows that the CAPE can remain elevated for years before any correction occurs. In late 1996, Alan Greenspan famously warned of irrational exuberance in financial markets. The S&P 500 then proceeded to roughly double over the following three years before the eventual decline arrived. A pre-retiree who exited stocks in 1996 based on valuation concerns alone missed extraordinary gains before the correction materialized. Valuation metrics set reasonable expectations about long-term returns. They are generally poor guides for short-term positioning and should never be used as the sole basis for a major allocation decision.
What they do argue for is a portfolio structure that does not depend entirely on continued strong equity returns to fund retirement. For anyone in Fresno or Clovis approaching retirement with a portfolio built heavily around US large-cap equities, this environment is worth discussing with an advisor. That conversation might involve a closer look at international diversification, where CAPE readings are considerably lower in several major markets. It might involve the role of fixed income in providing income that does not depend on equity valuations. It might involve stress-testing the portfolio against a scenario where US equity returns average 3 to 4% annually over the next decade rather than the 10% many people have come to expect. None of those conversations require predicting what the market will do. They require being honest about the range of reasonable outcomes.
Perspective for Pre-Retirees in Fresno and Clovis
For someone who is ten or more years from retirement, the current CAPE reading is worth monitoring but not necessarily acting on. Long investment horizons absorb valuation extremes over time, and the businesses underlying the S&P 500 will continue generating earnings and growing through the next cycle whatever it brings. For someone who is within five years of retirement, or already drawing from a portfolio, the margin for error is smaller. The sequence of returns matters more. The sustainability of withdrawal rates depends more directly on what the first several years of retirement actually deliver. At these valuation levels, building in more resilience and less dependence on a single equity market performing at historical averages is a reasonable and prudent response.
The CAPE ratio crossing 40 does not mean a crash is coming tomorrow or that the bull market is ending this year. It means that the price investors are collectively paying for future earnings is historically high, and that the mathematical relationship between entry price and forward return has always applied. The Magnificent 7 may continue to grow into their valuations. AI may produce productivity gains that justify the premiums being paid today. All of that is possible. What history is clear about is that investors who pay the highest prices for earnings have generally received the lowest returns over the following decade. For pre-retirees in Fresno and Clovis, building a retirement income plan that accounts for a range of outcomes is not pessimism. It is preparation.
At Legacy Finance, we work with clients approaching and in retirement to stress-test their plans against realistic market scenarios, including environments where equity returns are lower than they have been over the past decade. A portfolio built for one set of market conditions is not automatically well-suited for another. If you have not reviewed your allocation, your withdrawal rate assumptions, or your income sources in the context of where markets are priced today, that conversation is worth having before your retirement date rather than after it. For pre-retirees and retirees across Fresno and Clovis, that kind of forward-looking review is one of the clearest ways we can help maintain what you have built.
If you are interested in learning more about how this fits into your retirement plan, please contact us today.
Legacy Finance works with pre-retirees and retirees across Fresno and Clovis to build retirement plans that account for where markets are, not just where they have been. Call us at 559-297-8080 or visit imalegacy.com to schedule a conversation.
Frequently Asked Questions
What is the Shiller CAPE ratio and why does it matter? The Shiller CAPE ratio, or Cyclically Adjusted Price-to-Earnings ratio, measures the S&P 500's price against the average of ten years of inflation-adjusted earnings. It smooths out single-year earnings fluctuations to give a longer-range view of market valuation. Historically, when the ratio is elevated, forward returns over the following decade have tended to be lower. It is not a timing tool but a useful lens for setting realistic return expectations.
Should I move my retirement savings out of stocks because of the CAPE ratio? Not necessarily. The CAPE ratio tells you something about expected long-term returns, not about what the market will do in any given year. Elevated readings can persist for years before any correction. What it does argue for is reviewing your portfolio's dependence on strong US equity returns and ensuring your retirement income plan can withstand a range of outcomes, including a decade of lower average returns.
How is today's market different from the dot-com bubble? The companies driving current valuations are profitable businesses with real earnings, strong cash flows, and dominant competitive positions. The dot-com era was characterized by speculative investing in companies with no earnings and unproven business models. The structural quality is meaningfully different. However, the valuation math still applies regardless of business quality. High entry prices have historically been associated with lower forward returns even for excellent companies.
How do I know if my retirement portfolio is positioned appropriately for this environment? A useful starting point is stress-testing your plan against a scenario where US equity returns average 3 to 5% annually over the next decade rather than the historical long-term average of around 10%. If your withdrawal rate and income plan still work in that scenario, your portfolio has meaningful resilience. At Legacy Finance in Fresno and Clovis, we walk clients through exactly this kind of scenario analysis as part of retirement income planning.
Does the CAPE ratio predict a stock market crash? No. The CAPE ratio does not predict when corrections will occur or how severe they will be. What it reflects is the price investors are paying relative to earnings, and historically that price has correlated with forward returns over a 10 to 20 year horizon. It is a long-range valuation tool, not a market timing indicator. Investors who have tried to use extreme CAPE readings as exit signals have often missed significant gains before any eventual correction arrived.
Rice, Johnny. "The Stock Market Just Did Something for the 2nd Time in 100 Years, and History Says What Comes Next." The Motley Fool, May 28, 2026. fool.com
Pradhan, Manali, CFA. "The Stock Market Is Doing Something It's Only Done 1 Time Since 1871." The Motley Fool, February 11, 2026. fool.com
Beren, David. "A Signal Seen Only Once Before: History's Forecast for the S&P 500's Next Move." 24/7 Wall St., December 20, 2025. 247wallst.com
MarketMinute. "The Second Peak: Shiller PE Hits Levels Seen Only Once Since the 1870s." FinancialContent, January 6, 2026. financialcontent.com
Seeking Alpha. "Shiller P/E Hits Dot-Com Bubble Levels: Warning or Noise?" May 13, 2026. seekingalpha.com
Shiller, Robert J. Irrational Exuberance. Princeton University Press, 2000. Original CAPE ratio research.