Equity Outlook: Middle East War, Energy Shock Test Fragile Markets

AllianceBernstein

Nelson Yu

Research

13 Pages

AllianceBernstein examines how the Iran war and energy shock are testing already fragile equity markets. It notes global stocks fell 3.2% in 1Q26, Brent crude hit $103.9, and market leadership broadened as investors rotated away from crowded AI winners.

Key Takeaways

Oil Shock Risk: About 20% of the world’s oil moves through Hormuz, and Brent crude ended the quarter at $103.9 after rising 69% YTD.
Dispersion Is Widening: In 1Q26, 103 S&P 500 stocks, more than one fifth of the index, rose or fell by over 20%.
Concentration Is Easing: The top 10 stocks in the S&P 500 fell from 42% last September to below 38% by quarter end.
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