Wall Street admits earnings bubble may be real

In the United States, concerns have emerged regarding the effectiveness of the 60/40 investment portfolio strategy, with Apollo chief economist Torsten Slok stating it is broken due to rising government debt and a slowing AI trade. Goldman Sachs' Peter Oppenheimer noted the possibility of an earnings bubble, despite no apparent valuation bubble. Recent earnings reports from major tech firms have shown significant volatility, leading to debates about the sustainability of current market dynamics and the potential risks for investors.

Wall Street admits earnings bubble may be real
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business Published Aug 3, 2026

Topic overview

In brief

  • Apollo chief economist Torsten Slok argues that the 60/40 portfolio is ineffective due to rising government debt and changing market conditions.
  • Goldman Sachs' Peter Oppenheimer suggests that while there is no valuation bubble, an earnings bubble may be present.
  • The market is experiencing a shift away from mega-cap tech dominance, indicating a potential normalization in stock performance.

Summary

In the United States, recent market analyses have raised concerns about the sustainability of the 60/40 investment portfolio strategy, traditionally seen as a reliable approach for balancing risk and return. Apollo chief economist Torsten Slok has argued that this strategy is now ineffective due to rising government debt and changing market dynamics, particularly as the AI trade slows down. This perspective aligns with observations from Goldman Sachs' chief global equity strategist, Peter Oppenheimer, who noted that while there is no apparent valuation bubble, an earnings bubble may exist, indicating a potential mispricing of corporate profits.

The backdrop for these discussions includes a week of significant earnings reports from major technology firms, which exhibited extreme volatility. For instance, Microsoft experienced a historic 17% stock surge, adding nearly $500 billion in market capitalization in a single day. This surge, however, has led to debates among analysts regarding whether it reflects genuine growth or a form of financial nihilism, where market participants are overly optimistic despite underlying economic challenges.

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Updated Aug 3, 2026

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