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Goldman Sachs

June 12, 2026

The Impact Of The AI Capex Boom On S&P 500 Return On Equity

Weekly UpdateEquitiesRates Govt BondsCommoditiesInformation TechnologyFinancials

This report examines the impact of the AI capex boom on S&P 500 Return on Equity (ROE). While index profitability has hit record highs, the authors highlight significant ROE headwinds ahead for the mega-cap tech cohort.

Key Takeaways

  • 1.S&P 500 ROE has reached a record high of 22%, but the AI capex boom is expected to create headwinds for mega-cap tech ROE in coming years due to depreciation expenses and asset-heavy business models.
  • 2.Consensus estimates suggest ROE for the seven largest technology stocks will decline by an average of 700 bp next year.

Table of Contents

  • The impact of the AI capex boom on S&P 500 return on equity
  • The outlook for S&P 500 ROE
  • Record profitability has been one of the factors supporting high S&P 500 valuations.
  • Variation in profitability also helps explain the variation in valuations across equity indices.
  • Capital raising to fund the AI build-out signals additional headwinds to ROE.
  • S&P 500 earnings and return forecasts
  • Biggest stock movers this week
  • YTD absolute and risk-adjusted returns
  • Sentiment and flows
  • Economic growth
  • Interest rates and financial conditions
  • Market breadth and concentration
  • Correlation and volatility
  • IPO Barometer and mutual fund performance
  • Earnings growth
  • Valuations
  • Sector returns, earnings, and valuations
  • Thematic baskets
  • Factors
  • Goldman Sachs global macro research cross-asset forecasts
  • Disclosure Appendix

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