Goldman Sachs
May 19, 2026
Cause For Some Momentum Sobriety
Market ReportEquitiesMacro Economic IndicatorsInformation TechnologyCommunication Services
Goldman Sachs analysis indicates that while the S&P 500 rally is exceptionally narrow and driven by TMT momentum, it is currently supported by robust earnings growth unlike past bubbles.
Key Takeaways
- 1.The S&P 500 rally is heavily dominated by TMT names (Tech, Communication Services, AMZN, TSLA), accounting for 87% of YTD returns.
- 2.Market breadth has narrowed to its tightest level in decades, increasing drawdown risk, though not necessarily signaling an immediate end to the bull market.
- 3.Unlike previous momentum peaks, the current rally is justified by significant upward revisions in earnings estimates, specifically in AI-related infrastructure and Energy.
Table of Contents
- Executive Summary
- Check-down of Salient Points
- Visual Illustrations and Tables
- Narrow Breadth Analysis
- Momentum Persistence and Historical Context
- Broader Market and Earnings Implications
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Authors
Tony PasquarielloTyler Durden
Securities
NVDAGOOGLMUAMZNSPX
Themes
AI Dominance in Equity MarketsMarket Concentration and Breadth RiskEarnings-Driven Valuations vs. Speculative Bubbles
Regions
North AmericaUnited States
