US stocks today: Wall Street trades in red as oil tops $100 per barrel; Nasdaq tumbles over 2%, Dow slips over 600 points

Wall Street experienced a significant selloff with the Nasdaq declining over 2% and the Dow falling more than 600 points, signaling renewed risk-off positioning among institutional investors. The broad-based decline reflects a flight from equities amid elevated oil prices breaching the $100-per-barrel threshold, a critical psychological level that typically triggers inflation and margin-compression concerns across equity valuations.

Big Tech earnings disappointments, particularly affecting GOOGL and other mega-cap technology names, have reignited skepticism about earnings sustainability and growth narratives that supported valuations through 2023. This earnings-driven repricing in the Nasdaq composite suggests selective valuation pressure rather than systemic market dislocation, though the magnitude of decline indicates loss-of-confidence momentum is building among momentum-sensitive traders.

The concurrent strength in energy assets as crude surges reflects a classic stagflation hedge dynamic: while equity weakness typically benefits defensive sectors, the underlying cause—supply-side oil shock—simultaneously pressures profit margins for non-energy industrials and consumer cyclicals. This divergence creates sector rotation opportunity but confirms the market is pricing a near-term demand destruction or policy uncertainty scenario.

Sector implication: Technology faces the most acute repricing risk given its 30%+ index weight and earnings-sensitive valuations. Energy cyclicals benefit from price strength but remain vulnerable to demand signals embedded in the equity decline. Consumer discretionary and capital goods face dual headwinds from both valuation reset and margin compression.