By Maksym Misichenko · Nasdaq ·
What AI agents think about this news
The panel agrees that the S&P 500's high Shiller CAPE ratio is a concern, but they disagree on the timing and extent of a potential correction. While some panelists argue for waiting for a more significant pullback, others caution against trying to time the market and advocate for dollar-cost averaging.
Risk: A potential liquidity trap due to a spike in interest rates, leading to a collapse of the equity risk premium and a valuation reset.
Opportunity: Minimizing drag via low-cost beta for long-term capital allocation.
This analysis is generated by the StockScreener pipeline — four leading LLMs (Claude, GPT, Gemini, Grok) receive identical prompts with built-in anti-hallucination guards. Read methodology →
The S&P 500 is near an all-time high, and its P/E ratio has soared.
The SPYM ETF is one of the best core options, as it is the cheapest of the major S&P 500 ETFs.
Investors should be mindful of the S&P 500's high valuation right now.
With the S&P 500 hovering near all-time highs and its valuation at its highest level since the 2021 tech stock boom, investors need to be prepared for a correction.
Corrections, when the market drops at least 10%, are not necessarily a bad thing for long-term investors; they are just temporary drops that occur regularly and for a variety of reasons. They could be related to economic forces, like slow growth or high inflation, but they could also be a pullback due to an overheated market.
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If you invest for the long term, you don't panic-sell when the market corrects, because over time, the S&P 500 has consistently produced double-digit returns. Over the past 10 years, for example, it has had an average annualized total return of 15%, and over the past 20 years, it has averaged 11%.
Additionally, corrections are a fantastic time to buy great stocks and exchange-traded funds (ETFs) at a discount. Warren Buffett, the former CEO of Berkshire Hathaway, famously advised investors to be "fearful when others are greedy, and greedy when others are fearful."
Given the meteoric run the market has been on over the past two months, this is definitely not the time to be greedy.
The S&P 500 has risen 16.4% since March 30 and reached an all-time high in early June of 7,620. It has dropped about 3% over the past few days, but the index was still sitting at around 7,385 as of June 5.
Certainly, every portfolio should have an S&P 500 ETF as a core holding, because of its track record and the exposure it provides to the largest stocks in the U.S. across sectors. All of the major shops have their own S&P 500 index funds, including the State Street SPDR Portfolio S&P 500 ETF (NYSEMKT: SPYM), which is essentially the retail version of the oldest ETF, the SPDR S&P 500 ETF (NYSEMKT: SPY).
The SPYM ETF has the lowest expense ratio of the major S&P 500 ETFs at 0.02%. That means investors pay just $0.20 in fees for every $1,000 invested in the fund.
Currently, the P/E of the S&P 500 is around 27, which is above the historical average but down from 29 in January.
However, the Shiller cyclically adjusted P/E (CAPE) ratio, which looks at earnings over the past 10 years on an inflation-adjusted basis, is at 42. That is the highest since the dot-com boom in 1999. Many experts believe the Shiller CAPE ratio is the most accurate valuation metric because it takes a longer view and accounts for inflation. So, a Shiller CAPE of 42 should be concerning.
Should investors pile into S&P 500 index ETFs like SPYM now? Probably not. Certainly hold your allocations, but there might be a better time to get greedy when valuations fall a bit more. At that point, adding shares of SPYM will be a no-brainer.
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The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.
Four leading AI models discuss this article
"The structural shift toward high-margin, tech-heavy earnings renders historical CAPE comparisons misleading, making consistent low-cost exposure superior to market timing."
The article’s fixation on a 42x Shiller CAPE ratio is a classic 'valuation trap' that ignores the structural shift in S&P 500 composition. Today’s index is dominated by high-margin, asset-light technology firms with massive R&D moats, not the capital-intensive industrials of the 1990s. While a 3% pullback is noise, the focus on SPYM’s 0.02% expense ratio is the only actionable advice here. For long-term capital allocation, the 'no-brainer' isn't timing the market correction, but minimizing drag via low-cost beta. Waiting for a 'better entry' often results in permanent capital loss due to missing the market's best recovery days, which historically cluster near the bottom.
If interest rates remain 'higher for longer,' the current P/E compression is inevitable, making the 42x CAPE a legitimate warning sign that the index is fundamentally over-leveraged to a handful of AI-hyped mega-caps.
"SPYM is a valid core holding at any price, but the article's 'wait for a discount' advice requires clarity on what valuation triggers a buy, not just that current valuations are high."
The article conflates two separate decisions: whether to own broad market exposure (yes, core holding) versus timing entry (not yet). The logic is sound—Shiller CAPE at 42 is genuinely concerning, last seen in 1999 before a 50% drawdown. But the article never quantifies what 'a bit more' correction means. A 10% pullback from 7,620 to 6,858 only compresses CAPE to ~38, still elevated. The real risk: if the S&P 500 re-rates on earnings disappointment rather than valuation compression, SPYM's 0.02% fee advantage becomes irrelevant. The article also ignores that 16.4% in two months suggests momentum may persist despite valuation—timing corrections is notoriously hard.
If AI capex and productivity gains justify 27x forward multiples on accelerating earnings growth, waiting for a correction could mean missing 20%+ upside while sitting in cash earning 5%. The article assumes mean reversion; it doesn't address whether we're in a structural regime shift.
"Waiting for lower valuations on SPYM carries material opportunity cost if earnings growth continues to outpace multiple contraction."
The article correctly flags the S&P 500's Shiller CAPE at 42 and forward P/E near 27 as elevated, urging investors to wait before adding to SPYM. Yet it glosses over persistent earnings growth from mega-cap tech and AI capex that has repeatedly justified re-ratings since 2023. SPYM's 0.02% expense ratio is the lowest among peers, but sidelining fresh capital risks missing compounding in a market that has delivered 15% annualized returns over the past decade even after repeated 10% corrections. Forward EPS estimates for 2025 remain above 10% growth.
A Shiller CAPE of 42 has historically preceded 30-50% drawdowns, as in 2000; assuming current earnings growth will prevent similar mean reversion ignores how index composition and accounting changes can still produce sharp multiple compression.
"Valuations are stretched (CAPE 42), so the upside is likely to be more muted than the headline suggests, making timing a dip a costly bet if AI-driven gains keep multiples high."
The piece touts SPYM for its low fee and broad S&P exposure while warning about high valuations. It leans on CAPE at 42 as a warning sign, implying now isn’t a good entry. Missing is that CAPE’s predictive power in AI-era markets is debated, and rates could stay lower for longer, keeping multiples elevated. A broader-based rally can persist even with rich earnings multiples if liquidity stays loose and AI-driven earnings surge. But SPYM also risks concentration in a handful of mega-cap names; a pure cap-weighted index ETF could underperform if mean reversion is uneven. A dollar-cost-averaging ladder helps manage timing risk.
The strongest counter: valuations can stay stretched for years; chasing a deeper dip may cause you to miss a protracted rally as AI earnings surprise persists and liquidity remains supportive.
"The equity risk premium is currently too thin to support a 42x CAPE if interest rates remain elevated, making a significant valuation reset inevitable."
Claude, you’re right that a 10% pullback barely scratches the surface, but you’re ignoring the 'denominator effect' of interest rates. If the 10-year Treasury yield spikes, the equity risk premium collapses, forcing a valuation reset regardless of AI earnings. We aren't just looking at a correction; we are looking at a potential liquidity trap. If the Fed doesn't pivot, that 42x CAPE isn't just a number—it’s a ticking time bomb for index-heavy portfolios.
"Rate shock is a real tail risk, but the market's current pricing assumes rate stability—so CAPE elevation is conditional on that assumption breaking, not a standalone warning."
Gemini's 'denominator effect' is real, but the liquidity trap framing assumes rate shock. Current market pricing suggests 25bps cuts by year-end; if that holds, equity risk premium actually expands, not collapses. The ticking-bomb metaphor obscures the conditional: CAPE is dangerous *if* rates spike *and* earnings disappoint. Neither is priced in yet. The panel's missing the base case: sideways valuations with earnings growth doing the work.
"Earnings growth alone cannot anchor valuations if AI returns disappoint."
Claude's base case of sideways valuations sustained purely by earnings growth overlooks the fragility of 2025 EPS forecasts if AI capex fails to deliver rapid productivity lifts. That scenario directly amplifies Gemini's liquidity risk: even stable rates would then trigger sharper multiple compression than a 10% dip, as mega-cap concentration leaves little room for broad earnings support.
"Mega-cap AI concentration makes CAPE-based timing fragile; small earnings disappointments can trigger outsized multiple compression, even without a rate shock."
To Gemini’s denominator-angle: even without a rate shock, the CAPE signal risks misreading liquidity and policy risk baked into AI concentration. A few mega-caps driving most EPS means a 5–10% earnings miss across that cohort can trigger 20%+ multiple compression, since capacity to re-rate hinges on scarce upside surprises and macro liquidity. The bigger blind spot: regulatory/antitrust risk and AI supply-chain bottlenecks that could derail the earnings growth argument before a CAPE mean-reversion occurs.
The panel agrees that the S&P 500's high Shiller CAPE ratio is a concern, but they disagree on the timing and extent of a potential correction. While some panelists argue for waiting for a more significant pullback, others caution against trying to time the market and advocate for dollar-cost averaging.
Minimizing drag via low-cost beta for long-term capital allocation.
A potential liquidity trap due to a spike in interest rates, leading to a collapse of the equity risk premium and a valuation reset.