Semiconductors Sweep H1 2026: All 20 Top S&P Performers Posted Triple-Digit Gains

The AI capex cycle drove chips and memory to record highs, with a DRAM rebound and long-term supply deals reshaping the storage market.

The AI infrastructure boom showed up unambiguously in the first-half stock tape. According to @TopStockAlerts1, the top S&P 500 performers in H1 2026 were overwhelmingly in semiconductors and hardware, driven by the AI investment cycle — and all 20 delivered triple-digit gains. That's not a broad rally; it's a concentrated bet on the physical substrate of AI.

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