NEW YORK, July 21, 2026 – The S&P 500 closed 0.89% higher on Tuesday, with semiconductor stocks surging 5.2%. However, beneath the surface, a key valuation metric is flashing a warning that aligns with Warren Buffett’s recent cautious remarks.
The gap between the cyclically adjusted price-to-earnings (CAPE) ratio’s inverse yield and the 10-year real Treasury yield has narrowed to just seven basis points. The CAPE’s inverse yield stood at 2.44%, while the real yield on inflation-protected Treasuries was 2.37%, according to data from Multpl. This razor-thin spread offers little room for error, leaving stocks vulnerable to any earnings disappointments or a rise in discount rates.
The Shiller CAPE ratio finished Tuesday at 40.98, well above its historical mean of 17.40 and approaching its record high of 44.19. While the spread is not a direct return forecast, it serves as a stark valuation gauge. Warren Buffett, chairman of Berkshire Hathaway (NYSE: BRK.B), recently captured the mood, telling CNBC, “It’s tough to find values when everybody is preferring gambling.”
Berkshire’s own actions reflect this caution. The conglomerate’s cash pile reached a record $380.2 billion as of March 31, and it was a net seller of stocks for the 14th consecutive quarter. Yet this does not signal a wholesale retreat from equities. Last week, estimated Berkshire exposure to Alphabet (NASDAQ: GOOGL) reached nearly $31 billion, roughly 8% of its cash reserves, showing that Buffett is willing to back select franchises even while rejecting broad market valuations.
The broader market, however, remains buoyed by strong corporate profits. Of the first 49 S&P 500 members to report, 90% have beaten expectations, with consensus estimates projecting second-quarter earnings growth of 26%. This has helped defend the market, even as the semiconductor index fell 20.2% from its June peak, entering bear market territory before this week’s rebound.
The technology sector now faces a critical test. Alphabet and Texas Instruments (NASDAQ: TXN) report on Wednesday, July 22, followed by Intel (NASDAQ: INTC) on Thursday, July 23. Alphabet’s capital spending plans will be under particular scrutiny, as the company raised its 2026 capital plan to between $180 billion and $190 billion. Investors need evidence that these massive outlays can sustain returns.
Lindsey Bell of 248 Ventures described chip stocks as “priced for perfection,” a phrase that encapsulates the market’s central tension. Prices allow little room for error, even as reported profits remain strong. The week ahead will test whether earnings can justify the rich valuations that have made Buffett and other value investors uneasy.
