
Tech Sector Surges on AI Capex in May 2026, Narrowing Market Leadership
The technology sector delivered outsized gains in May 2026, rising approximately 16-20% and accounting for nearly all S&P 500 advances while other sectors declined. AI-related capital expenditures by hyperscalers and semiconductor demand drove performance, with names like Micron and Dell showing exceptional moves. Global investment in AI infrastructure, data centers, and chips continues at a record pace, though concentration risks persist. Investors monitoring global equities may note the theme's dominance amid broader market breadth challenges.