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Mega-Cap AI Euphoria Falters as NVDA, AMD, Earnings Loom; Valuation Reset Feared

Mega-cap technology stocks that have powered the 2026 rally began to crack Friday as investors grapple with stretched valuations and the reality of $1 trillion capex cycles. NVIDIA's run from $4.7 trillion to near $5.7 trillion in market cap in a single week has rekindled bubble concerns, especially ahead of next week's earnings.

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Mega-Cap AI Euphoria Falters as NVDA, AMD, Earnings Loom; Valuation Reset Feared 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.