Reference Portfolio · Updated
Rubin Equal Weight
Passive buy-and-hold of the Rubin Build-Out 100 constituents at inception-date equal weights. Notional 500k USD.
Thesis
Rubin Equal Weight is the passive reference expression of the Rubin Build-Out thesis: if you believe the AI capital cycle plays out across all 100+ constituents roughly symmetrically, you buy every name at the same dollar weight and let time compound. No factor tilt, no sector concentration. A pure bet on the breadth of the thesis.
Inception: 2026-01-02 with 500,000 USD notional, spread equal-weight across the Rubin-Index constituents at their local-currency entry prices, FX-converted to USD at the inception-date spot rate. Fractional shares permitted. No rebalancing between inception and today — the portfolio drifts naturally as winners grow their weight and laggards shrink. Divergence from the live CL-RUBIN-EW index (which rebalances daily to maintain equal weights) is an expected feature, not a bug — the buy-and-hold version is what a retail investor can actually replicate.
Composition breakdown and inception attribution are rendered below. For the live daily-rebalanced index version, see Rubin Build-Out 100.
Structure
- Equities98
98 equity positions · US, UK, Taiwan, Israel, Netherlands, Germany, Japan, Switzerland, Singapore/HK, South Korea, Italy, Austria, France, US/Thailand, US/Germany . Benchmark: Rubin Build-Out EW (daily-rebalanced index) (CL-RUBIN-EW).
Composition
98 positions grouped by segment. All values in USD (Barchart-converted). Snapshot from May 1, 2026.
Equities (USD)
| Symbol | Name | Units | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|
| AEHR | Aehr Test Systems | 129.82 | 11,756.40 | 4,901.96 | 6,854.44 | +139.83% | 0.00 | +0.00% | 1.42% |
| INTC | Intel | 106.15 | 10,028.96 | 4,901.96 | 5,127.00 | +104.59% | 0.00 | +0.00% | 1.21% |
| MRVL | Marvell Technology | 54.78 | 9,046.85 | 4,901.96 | 4,144.89 | +84.56% | 0.00 | +0.00% | 1.09% |
| AMD | AMD | 23.88 | 8,465.40 | 4,901.96 | 3,563.44 | +72.69% | 0.00 | +0.00% | 1.02% |
| STM | STMicroelectronics | 151.63 | 8,361.04 | 4,901.96 | 3,459.08 | +70.57% | 0.00 | +0.00% | 1.01% |
| ON | onsemi | 82.68 | 8,334.74 | 4,901.96 | 3,432.78 | +70.03% | 0.00 | +0.00% | 1.00% |
| ARM | ARM Holdings | 37.76 | 7,941.62 | 4,901.96 | 3,039.66 | +62.01% | 0.00 | +0.00% | 0.96% |
| CRDO | Credo Technology | 45.77 | 7,965.17 | 4,901.96 | 3,063.21 | +62.49% | 0.00 | +0.00% | 0.96% |
| AAOI | Applied Optoelectronics | 48.10 | 7,905.09 | 4,901.96 | 3,003.13 | +61.26% | 0.00 | +0.00% | 0.95% |
| ACLS | Axcelis Technologies | 56.27 | 7,827.27 | 4,901.96 | 2,925.31 | +59.68% | 0.00 | +0.00% | 0.94% |
| ALGM | Allegro MicroSystems | 158.59 | 7,691.53 | 4,901.96 | 2,789.57 | +56.91% | 0.00 | +0.00% | 0.93% |
| COHU | Cohu | 161.51 | 7,647.70 | 4,901.96 | 2,745.74 | +56.01% | 0.00 | +0.00% | 0.92% |
| ALAB | Astera Labs | 38.86 | 7,566.64 | 4,901.96 | 2,664.68 | +54.36% | 0.00 | +0.00% | 0.91% |
| GFS | GlobalFoundries | 113.05 | 7,303.20 | 4,901.96 | 2,401.24 | +48.99% | 0.00 | +0.00% | 0.88% |
| MPWR | Monolithic Power Systems | 4.50 | 7,256.93 | 4,901.96 | 2,354.97 | +48.04% | 0.00 | +0.00% | 0.87% |
| AMKR | Amkor Technology | 101.85 | 7,103.92 | 4,901.96 | 2,201.96 | +44.92% | 0.00 | +0.00% | 0.86% |
| ASX | ASE Group | 223.83 | 7,030.62 | 4,901.96 | 2,128.66 | +43.42% | 0.00 | +0.00% | 0.85% |
| SNDK | SanDisk | 6.35 | 6,961.63 | 4,901.96 | 2,059.67 | +42.02% | 0.00 | +0.00% | 0.84% |
| FORM | FormFactor | 51.55 | 7,006.55 | 4,901.96 | 2,104.59 | +42.93% | 0.00 | +0.00% | 0.84% |
| ONTO | Onto Innovation | 23.40 | 6,905.23 | 4,901.96 | 2,003.27 | +40.87% | 0.00 | +0.00% | 0.83% |
| TSEM | Tower Semiconductor | 29.52 | 6,524.45 | 4,901.96 | 1,622.49 | +33.10% | 0.00 | +0.00% | 0.79% |
| PLAB | Photronics | 132.56 | 6,558.93 | 4,901.96 | 1,656.97 | +33.80% | 0.00 | +0.00% | 0.79% |
| AVGO | Broadcom | 15.36 | 6,411.06 | 4,901.96 | 1,509.10 | +30.79% | 0.00 | +0.00% | 0.77% |
| KLIC | Kulicke & Soffa | 73.43 | 6,277.97 | 4,901.96 | 1,376.01 | +28.07% | 0.00 | +0.00% | 0.76% |
| PDFS | PDF Solutions | 144.26 | 6,181.55 | 4,901.96 | 1,279.59 | +26.10% | 0.00 | +0.00% | 0.75% |
| MOD | Modine Manufacturing | 24.40 | 6,213.89 | 4,901.96 | 1,311.93 | +26.76% | 0.00 | +0.00% | 0.75% |
| FN | Fabrinet | 9.07 | 6,195.72 | 4,901.96 | 1,293.76 | +26.39% | 0.00 | +0.00% | 0.75% |
| MTSI | MACOM Technology | 21.83 | 6,147.86 | 4,901.96 | 1,245.90 | +25.42% | 0.00 | +0.00% | 0.74% |
| GLW | Corning | 36.83 | 6,049.73 | 4,901.96 | 1,147.77 | +23.41% | 0.00 | +0.00% | 0.73% |
| VRT | Vertiv | 18.21 | 5,982.26 | 4,901.96 | 1,080.30 | +22.04% | 0.00 | +0.00% | 0.72% |
| ENTG | Entegris | 42.31 | 5,981.69 | 4,901.96 | 1,079.73 | +22.03% | 0.00 | +0.00% | 0.72% |
| ASML | ASML | 4.12 | 5,891.76 | 4,901.96 | 989.80 | +20.19% | 0.00 | +0.00% | 0.71% |
| ETN | Eaton | 13.61 | 5,892.36 | 4,901.96 | 990.40 | +20.20% | 0.00 | +0.00% | 0.71% |
| MKSI | MKS Instruments | 20.70 | 5,872.63 | 4,901.96 | 970.67 | +19.80% | 0.00 | +0.00% | 0.71% |
| TSM | TSMC | 14.47 | 5,730.59 | 4,901.96 | 828.63 | +16.90% | 0.00 | +0.00% | 0.69% |
| MU | Micron Technology | 11.04 | 5,708.62 | 4,901.96 | 806.66 | +16.46% | 0.00 | +0.00% | 0.69% |
| NVT | nVent Electric | 40.05 | 5,722.97 | 4,901.96 | 821.01 | +16.75% | 0.00 | +0.00% | 0.69% |
| COHR | Coherent | 17.79 | 5,687.13 | 4,901.96 | 785.17 | +16.02% | 0.00 | +0.00% | 0.69% |
| LITE | Lumentum | 6.35 | 5,728.47 | 4,901.96 | 826.51 | +16.86% | 0.00 | +0.00% | 0.69% |
| AEIS | Advanced Energy | 14.95 | 5,741.03 | 4,901.96 | 839.07 | +17.12% | 0.00 | +0.00% | 0.69% |
| CDNS | Cadence Design Systems | 17.06 | 5,621.55 | 4,901.96 | 719.59 | +14.68% | 0.00 | +0.00% | 0.68% |
| KLAC | KLA Corp | 3.24 | 5,676.56 | 4,901.96 | 774.60 | +15.80% | 0.00 | +0.00% | 0.68% |
| SNPS | Synopsys | 11.45 | 5,524.08 | 4,901.96 | 622.12 | +12.69% | 0.00 | +0.00% | 0.67% |
| TER | Teradyne | 16.21 | 5,567.72 | 4,901.96 | 665.76 | +13.58% | 0.00 | +0.00% | 0.67% |
| CARR | Carrier Global | 83.13 | 5,583.59 | 4,901.96 | 681.63 | +13.91% | 0.00 | +0.00% | 0.67% |
| APH | Amphenol | 37.59 | 5,536.45 | 4,901.96 | 634.49 | +12.94% | 0.00 | +0.00% | 0.67% |
| NVDA | NVIDIA | 27.45 | 5,478.74 | 4,901.96 | 576.78 | +11.77% | 0.00 | +0.00% | 0.66% |
| CAMT | Camtek | 28.46 | 5,461.74 | 4,901.96 | 559.78 | +11.42% | 0.00 | +0.00% | 0.66% |
| LRCX | Lam Research | 20.95 | 5,402.01 | 4,901.96 | 500.05 | +10.20% | 0.00 | +0.00% | 0.65% |
| AMAT | Applied Materials | 13.72 | 5,413.55 | 4,901.96 | 511.59 | +10.44% | 0.00 | +0.00% | 0.65% |
| NDSN | Nordson | 18.34 | 5,291.62 | 4,901.96 | 389.66 | +7.95% | 0.00 | +0.00% | 0.64% |
| NVMI | Nova Ltd | 10.38 | 5,196.31 | 4,901.96 | 294.35 | +6.00% | 0.00 | +0.00% | 0.63% |
| DD | DuPont | 112.64 | 5,143.00 | 4,901.96 | 241.04 | +4.92% | 0.00 | +0.00% | 0.62% |
| LIN | Linde | 10.01 | 5,015.46 | 4,901.96 | 113.50 | +2.32% | 0.00 | +0.00% | 0.60% |
| TOTAL | — | — | 356,519.54 | 264,705.84 | 91,813.70 | +34.69% | — | — | 42.98% |
Equities (JPY)
| Symbol | Name | Units | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|
| 285A.T | Kioxia | 342.32 | 8,523.66 | 4,901.96 | 3,621.70 | +73.88% | 0.00 | +0.00% | 1.03% |
| 6981.T | Murata Manufacturing | 423.91 | 7,172.48 | 4,901.96 | 2,270.52 | +46.32% | 0.00 | +0.00% | 0.86% |
| 4062.T | Ibiden | 360.49 | 6,939.46 | 4,901.96 | 2,037.50 | +41.57% | 0.00 | +0.00% | 0.84% |
| 8035.T | Tokyo Electron | 22.56 | 6,733.57 | 4,901.96 | 1,831.61 | +37.36% | 0.00 | +0.00% | 0.81% |
| 3436.T | Sumco | 228.00 | 6,456.91 | 4,901.96 | 1,554.95 | +31.72% | 0.00 | +0.00% | 0.78% |
| 6723.T | Renesas Electronics | 618.86 | 6,361.84 | 4,901.96 | 1,459.88 | +29.78% | 0.00 | +0.00% | 0.77% |
| 6361.T | Ebara | 62.18 | 6,404.06 | 4,901.96 | 1,502.10 | +30.64% | 0.00 | +0.00% | 0.77% |
| 6367.T | Daikin | 437.53 | 6,208.61 | 4,901.96 | 1,306.65 | +26.66% | 0.00 | +0.00% | 0.75% |
| 6920.T | Lasertec | 110.70 | 6,128.56 | 4,901.96 | 1,226.60 | +25.02% | 0.00 | +0.00% | 0.74% |
| 6146.T | DISCO Corp | 598.90 | 5,941.04 | 4,901.96 | 1,039.08 | +21.20% | 0.00 | +0.00% | 0.72% |
| 6857.T | Advantest | 32.07 | 5,996.68 | 4,901.96 | 1,094.72 | +22.33% | 0.00 | +0.00% | 0.72% |
| 6856.T | Horiba | 188.28 | 5,861.27 | 4,901.96 | 959.31 | +19.57% | 0.00 | +0.00% | 0.71% |
| 7751.T | Canon | 266.14 | 5,847.01 | 4,901.96 | 945.05 | +19.28% | 0.00 | +0.00% | 0.70% |
| 4004.T | Resonac | 66.95 | 5,650.60 | 4,901.96 | 748.64 | +15.27% | 0.00 | +0.00% | 0.68% |
| 4063.T | Shin-Etsu Chemical | 161.13 | 5,554.04 | 4,901.96 | 652.08 | +13.30% | 0.00 | +0.00% | 0.67% |
| 6525.T | Kokusai Electric | 1126.63 | 5,328.95 | 4,901.96 | 426.99 | +8.71% | 0.00 | +0.00% | 0.64% |
| 6965.T | Hamamatsu Photonics | 854.10 | 5,210.04 | 4,901.96 | 308.08 | +6.28% | 0.00 | +0.00% | 0.63% |
| 2802.T | Ajinomoto | 173.89 | 5,181.92 | 4,901.96 | 279.96 | +5.71% | 0.00 | +0.00% | 0.62% |
| 5801.T | Furukawa Electric | 198.24 | 5,031.21 | 4,901.96 | 129.25 | +2.64% | 0.00 | +0.00% | 0.61% |
| 5201.T | AGC Inc. | 694.33 | 4,971.39 | 4,901.96 | 69.43 | +1.42% | 0.00 | +0.00% | 0.60% |
| 6890.T | Tokyo Seimitsu | 412.62 | 4,901.96 | 4,901.96 | 0.00 | +0.00% | 0.00 | +0.00% | 0.59% |
| 7731.T | Nikon | 413.49 | 4,750.96 | 4,901.96 | -151.00 | -3.08% | 0.00 | +0.00% | 0.57% |
| 7911.T | Toppan Holdings | 288.86 | 4,304.04 | 4,901.96 | -597.92 | -12.20% | 0.00 | +0.00% | 0.52% |
| TOTAL | — | — | 135,460.26 | 112,745.08 | 22,715.18 | +20.15% | — | — | 16.33% |
Equities (EUR)
| Symbol | Name | Units | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|
| SOI.PA | Soitec | 77.81 | 11,542.17 | 4,901.96 | 6,640.21 | +135.46% | 0.00 | +0.00% | 1.39% |
| ATS.VI | AT&S | 90.11 | 9,876.01 | 4,901.96 | 4,974.05 | +101.47% | 0.00 | +0.00% | 1.19% |
| IFX.DE | Infineon | 122.64 | 8,186.29 | 4,901.96 | 3,284.33 | +67.00% | 0.00 | +0.00% | 0.99% |
| AIXA.DE | Aixtron | 142.75 | 7,835.43 | 4,901.96 | 2,933.47 | +59.84% | 0.00 | +0.00% | 0.94% |
| WAF.DE | Siltronic | 84.15 | 7,837.24 | 4,901.96 | 2,935.28 | +59.88% | 0.00 | +0.00% | 0.94% |
| BESI.AS | BESI | 25.48 | 7,359.32 | 4,901.96 | 2,457.36 | +50.13% | 0.00 | +0.00% | 0.89% |
| SMHN.DE | SÜSS MicroTec | 80.49 | 7,167.01 | 4,901.96 | 2,265.05 | +46.21% | 0.00 | +0.00% | 0.86% |
| ASM.AS | ASM International | 7.10 | 6,886.98 | 4,901.96 | 1,985.02 | +40.49% | 0.00 | +0.00% | 0.83% |
| TPRO.MI | Technoprobe | 309.66 | 6,667.04 | 4,901.96 | 1,765.08 | +36.01% | 0.00 | +0.00% | 0.80% |
| AI.PA | Air Liquide | 28.73 | 6,145.99 | 4,901.96 | 1,244.03 | +25.38% | 0.00 | +0.00% | 0.74% |
| SU.PA | Schneider Electric | 19.35 | 6,072.56 | 4,901.96 | 1,170.60 | +23.88% | 0.00 | +0.00% | 0.73% |
| TOTAL | — | — | 85,576.04 | 53,921.56 | 31,654.48 | +58.70% | — | — | 10.30% |
Equities (CHF)
| Symbol | Name | Units | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|
| IFCN.SW | INFICON | 44.45 | 8,215.69 | 4,901.96 | 3,313.73 | +67.60% | 0.00 | +0.00% | 0.99% |
| COTN.SW | Comet Group | 18.75 | 7,369.17 | 4,901.96 | 2,467.21 | +50.33% | 0.00 | +0.00% | 0.89% |
| VACN.SW | VAT Group | 9.35 | 6,980.53 | 4,901.96 | 2,078.57 | +42.40% | 0.00 | +0.00% | 0.84% |
| TOTAL | — | — | 22,565.39 | 14,705.88 | 7,859.51 | +53.44% | — | — | 2.72% |
Equities (HKD)
| Symbol | Name | Units | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|
| 0522.HK | ASMPT | 47.23 | 983.22 | 4,901.96 | -3,918.74 | -79.94% | 0.00 | +0.00% | 0.12% |
| TOTAL | — | — | 983.22 | 4,901.96 | -3,918.74 | -79.94% | — | — | 0.12% |
Equities (TWD)
| Symbol | Name | Units | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|
| 3037.TW | Unimicron | 8.45 | 235.97 | 4,901.96 | -4,665.99 | -95.19% | 0.00 | +0.00% | 0.03% |
| 2308.TW | Delta Electronics | 3.35 | 229.07 | 4,901.96 | -4,672.89 | -95.33% | 0.00 | +0.00% | 0.03% |
| 6488.TW | GlobalWafers | 10.19 | 186.91 | 4,901.96 | -4,715.05 | -96.19% | 0.00 | +0.00% | 0.02% |
| TOTAL | — | — | 651.95 | 14,705.88 | -14,053.93 | -95.57% | — | — | 0.08% |
Equities (KRW)
| Symbol | Name | Units | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|
| 042700.KS | Hanmi Semiconductor | 0.02 | 3.91 | 4,901.96 | -4,898.05 | -99.92% | 0.00 | +0.00% | 0.00% |
| 000660.KS | SK hynix | 0.00 | 4.24 | 4,901.96 | -4,897.72 | -99.91% | 0.00 | +0.00% | 0.00% |
| 005930.KS | Samsung Electronics | 0.02 | 3.65 | 4,901.96 | -4,898.31 | -99.93% | 0.00 | +0.00% | 0.00% |
| TOTAL | — | — | 11.80 | 14,705.88 | -14,694.08 | -99.92% | — | — | 0.00% |
Summary
| Group | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|
| Equities (USD) | 356,519.54 | 264,705.84 | 91,813.70 | +34.69% | — | — | 42.98% |
| Equities (JPY) | 135,460.26 | 112,745.08 | 22,715.18 | +20.15% | — | — | 16.33% |
| Equities (EUR) | 85,576.04 | 53,921.56 | 31,654.48 | +58.70% | — | — | 10.30% |
| Equities (CHF) | 22,565.39 | 14,705.88 | 7,859.51 | +53.44% | — | — | 2.72% |
| Equities (HKD) | 983.22 | 4,901.96 | -3,918.74 | -79.94% | — | — | 0.12% |
| Equities (TWD) | 651.95 | 14,705.88 | -14,053.93 | -95.57% | — | — | 0.08% |
| Equities (KRW) | 11.80 | 14,705.88 | -14,694.08 | -99.92% | — | — | 0.00% |
| TOTAL (USD) | 829,529.00 | 500,000.00 | 329,529.00 | +65.91% | 0.00 | — | — |
Related
Beyond the snapshot
Closelook.money adds the live layer
The composition above is the end-of-day snapshot. Closelook.money adds what sits between snapshots: the historical move log with Thomas' reasoning per trade, per-holding performance attribution, per-portfolio real-time alerts when a position changes, and CSV export for analysis.
- Full historical moves log with per-trade reasoning
- Per-holding attribution — which position drives the return
- Real-time alerts on opens, closes, and ≥10% size changes
- CSV export of current composition
Methodology & disclaimer
Rubin Equal Weight is a reference portfolio — it reflects how Thomas Look, author and publisher of Closelook, implements the analytical theses discussed on this site. Position data is updated daily from end-of-day broker exports (Barchart). Benchmark prices come from EODHD.
Reference portfolio, educational purpose only. Not investment advice. Buy-and-hold snapshot from 2026-01-02 — drift vs. live index is expected.
Reference portfolio, not investment advice. Past performance is not indicative of future results. Closelook Venture GmbH is a publishing company and does not manage client capital.