AI Buildout Index — 100 Companies | Closelook
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AI Buildout Index

100 constituents across 18 sectors tracking the Rubin → Feynman infrastructure cycle. Three weighting variants. Updated daily after market close.

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Equal Weight
CL-RUBIN-EW
——1D
YTD —1M —1W —
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Cap Weight
CL-RUBIN-CW
——1D
YTD —1M —1W —
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Momentum
CL-RUBIN-MW
——1D
YTD —1M —1W —
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How the Rubin Build-Out 100 Index Works
Equal Weight (EW)
Each of the 100 constituents contributes equally. Rebalanced daily. Best gauge of average stock performance across the semiconductor supply chain.
Cap Weight (CW)
Weighted by market capitalization with a 10% single-stock cap. Reflects the economic reality where NVIDIA, TSMC, and Broadcom dominate.
Momentum (MW)
Weighted by 63-day price momentum. Stocks with stronger recent performance receive higher weight. Captures trend-following dynamics.
Base date: October 3, 2022 = 1,000. All prices converted to USD daily (JPY, EUR, KRW, CHF, TWD, HKD). 100 stocks across 18 sectors spanning the full semiconductor supply chain from EDA design to gases & chemicals. Data updates after US market close (~23:00 UTC). Full methodology →

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Index charts render live after Worker deployment · Base: Feb 28, 2025 · USD
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Sector Indices

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Constituents
Ticker ↕ Name 30D Sector Price 1D 1M 3M Mom RBR Tags
Custom Index Builder
Combine metadata filters to assemble your own sub-index. The engine recalculates weights and performance client-side in real time.
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1,000.00
YTD
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Stocks
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Weighting

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  • 3 headline index values
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  • Top 10 constituents visible
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/month
  • Everything in Intelligence
  • Custom index builder (unlimited)
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