The semiconductor sector's leadership in the first half of 2026 has been extreme, showing a clear dispersion of returns within the memory segment. $SanDisk Corp.(SNDK)$ was the standout, with an extraordinary +857% move, while $Micron Technology(MU)$ followed with a strong +303% advance. This really underscores the power of the memory cycle re-rating.
What stands out isn't just the size of the moves, but the concentration of capital flowing into a narrow set of semiconductor winners, as AI-driven demand continues to reshape the supply chain narrative. That's what sector leadership looks like when cycle momentum fully takes over.
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