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Mega-cap Tech Rally Masks Breadth Weakness: SPY, NVDA, MSFT Lead While Small Caps Lag

The S&P 500 and Nasdaq have pushed to record highs driven by a narrow cohort of AI-linked mega-cap stocks (NVDA, MSFT, META, AAPL), yet breadth metrics show underlying fragility as small caps and non-AI sectors struggle. The concentration risk mirrors dot-com patterns, with valuations stretched relative to historical norms.

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Rocky take

Mega-cap Tech Rally Masks Breadth Weakness: SPY, NVDA, MSFT Lead While Small Caps Lag has gained +0% in mention volume over the past 24 hours. Sentiment is constructive. Coverage is led by tier-1 financial press with cross-platform amplification.