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Rubin outruns the Nasdaq 100 index

By a factor of thirteen.

Thomas Look's avatar
Thomas Look
Apr 21, 2026
∙ Paid

The Nasdaq 100 is up roughly 6% year-to-date. The SMH, the cleanest semiconductor benchmark, prints around 27.5%. The Closelook Rubin Build-Out 100 — our own index of the AI hardware supply chain — is up 65% equal-weight and just under 90% on the momentum variant.

That spread is the story. Not that semis are running. Semis always run in AI cycles. The st…

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