Reference Portfolio · Updated
Rubin Sector Rotation
Active sector-tilt portfolio driven by T3b top-sector-change signals. Notional 500k USD. Inception 2026-05-01.
Thesis
Rubin Sector Rotation is the active counterpart to the two passive Rubin portfolios. It starts from an equal-weight base across all Rubin-Index sectors, then applies tilts based on the T3b sector-rank signal: top-3 sectors by 5-day mean return get 1.5× weight, rank 4–6 stay neutral, rank 7–end get 0.5×, and bottom-3 sectors go to zero. Rebalances fire on every top-3 or bottom-3 sector-rank-change event — event-driven, not calendar-driven. Over time the portfolio concentrates exposure in whatever is leading the Rubin universe and cuts what's lagging, with a cooldown rule to prevent whipsaw.
Inception: 2026-05-01 — the first trading day of the public track record. Notional 500,000 USD. Earlier backtests would be backtested-based-on-a-signal-that-didn't-exist-yet, which is not management skill — performance tracking starts only when the signal was live and the portfolio was actually deployed. Composition evolves as signals fire; the move log below shows every rebalance with the triggering signal attached.
See the Tape for the underlying T3b signal history. Expect more turnover than the passive variants and a return profile that reflects the T3b-signal quality — this is active management with a specific, reproducible rulebook.
Structure
- Equities61
61 equity positions · US, Japan, Austria, Taiwan, Germany, Switzerland, Singapore/HK, France, Finland, Italy, UK, Netherlands . Benchmark: Rubin Build-Out EW (as the no-tilt baseline) (CL-RUBIN-EW).
Top Holdings
61 total positions — top 10 by weight shown. Tracker portfolio — prices and constituents from the Rubin index worker.
| # | Symbol | Name | Weight |
|---|---|---|---|
| 1 | 285A.T | Kioxia | 25.22% |
| 2 | 4062.T | Ibiden | 10.68% |
| 3 | LPK.DE | LPKF Laser & Electronics | 4.25% |
| 4 | SOI.PA | Soitec | 3.48% |
| 5 | INTC | Intel | 3.25% |
| 6 | 6981.T | Murata Manufacturing | 2.60% |
| 7 | ATS.VI | AT&S | 2.50% |
| 8 | 6367.T | Daikin | 2.50% |
| 9 | SNDK | SanDisk | 2.38% |
| 10 | 3037.TW | Unimicron | 2.08% |
Composition
61 positions grouped by segment. All values in USD. Tracker portfolio — prices and constituents from the Rubin index worker (EODHD-primary, daily after US close). Snapshot from May 10, 2026.
Equities (USD)
| # | Symbol | Name | Units | Price | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 285A.T | Kioxia | 740.61 | 284.06 | 210,378.90 | 18,663.48 | 191,715.42 | +1027.22% | 0.00 | +0.00% | 25.22% |
| 2 | 3436.T | Sumco | 340.53 | 22.84 | 7,777.64 | 11,067.13 | -3,289.49 | -29.72% | 0.00 | +0.00% | 0.93% |
| 3 | 4062.T | Ibiden | 899.58 | 99.06 | 89,112.67 | 19,341.03 | 69,771.64 | +360.74% | 0.00 | +0.00% | 10.68% |
| 4 | 6367.T | Daikin | 132.96 | 156.75 | 20,841.35 | 1,922.59 | 18,918.76 | +984.02% | 0.00 | +0.00% | 2.50% |
| 5 | 6857.T | Advantest | 16.55 | 190.81 | 3,156.99 | 2,987.89 | 169.10 | +5.66% | 0.00 | +0.00% | 0.38% |
| 6 | 6920.T | Lasertec | 44.95 | 279.46 | 12,562.17 | 2,458.85 | 10,103.32 | +410.90% | 0.00 | +0.00% | 1.51% |
| 7 | 6981.T | Murata Manufacturing | 580.24 | 37.35 | 21,671.89 | 9,463.68 | 12,208.21 | +129.00% | 0.00 | +0.00% | 2.60% |
| 8 | 7911.T | Toppan Holdings | 177.39 | 33.82 | 5,999.21 | 2,841.73 | 3,157.48 | +111.11% | 0.00 | +0.00% | 0.72% |
| 9 | AAOI | Applied Optoelectronics | 72.10 | 148.94 | 10,738.43 | 13,230.89 | -2,492.46 | -18.84% | 0.00 | +0.00% | 1.29% |
| 10 | ACLS | Axcelis Technologies | 39.12 | 163.03 | 6,377.51 | 5,476.21 | 901.30 | +16.46% | 0.00 | +0.00% | 0.76% |
| 11 | AEHR | Aehr Test Systems | 170.60 | 97.23 | 16,587.07 | 15,877.39 | 709.68 | +4.47% | 0.00 | +0.00% | 1.99% |
| 12 | AEIS | Advanced Energy | 5.11 | 357.24 | 1,824.21 | 1,986.66 | -162.45 | -8.18% | 0.00 | +0.00% | 0.22% |
| 13 | ALAB | Astera Labs | 52.57 | 199.79 | 10,503.22 | 10,655.16 | -151.94 | -1.43% | 0.00 | +0.00% | 1.26% |
| 14 | ALGM | Allegro MicroSystems | 226.09 | 48.95 | 11,067.00 | 11,073.78 | -6.78 | -0.06% | 0.00 | +0.00% | 1.33% |
| 15 | AMD | AMD | 23.32 | 455.19 | 10,616.85 | 8,409.23 | 2,207.62 | +26.25% | 0.00 | +0.00% | 1.27% |
| 16 | AMKR | Amkor Technology | 87.52 | 76.61 | 6,705.27 | 6,222.14 | 483.13 | +7.76% | 0.00 | +0.00% | 0.80% |
| 17 | ARM | ARM Holdings | 20.15 | 213.27 | 4,296.88 | 4,254.77 | 42.11 | +0.99% | 0.00 | +0.00% | 0.52% |
| 18 | ASX | ASE Group | 150.85 | 34.23 | 5,163.49 | 4,765.25 | 398.24 | +8.36% | 0.00 | +0.00% | 0.62% |
| 19 | AVGO | Broadcom | 9.60 | 430.00 | 4,126.84 | 4,043.14 | 83.70 | +2.07% | 0.00 | +0.00% | 0.49% |
| 20 | CARR | Carrier Global | 32.76 | 64.18 | 2,102.67 | 2,215.37 | -112.70 | -5.09% | 0.00 | +0.00% | 0.25% |
| 21 | CDNS | Cadence Design Systems | 7.48 | 353.63 | 2,644.41 | 2,549.52 | 94.89 | +3.72% | 0.00 | +0.00% | 0.32% |
| 22 | COHU | Cohu | 111.62 | 48.45 | 5,407.81 | 5,088.59 | 319.22 | +6.27% | 0.00 | +0.00% | 0.65% |
| 23 | CRDO | Credo Technology | 58.81 | 193.57 | 11,384.82 | 10,844.31 | 540.51 | +4.98% | 0.00 | +0.00% | 1.36% |
| 24 | FORM | FormFactor | 30.93 | 145.00 | 4,484.59 | 4,248.61 | 235.98 | +5.55% | 0.00 | +0.00% | 0.54% |
| 25 | GFS | GlobalFoundries | 84.64 | 74.04 | 6,266.78 | 5,494.01 | 772.77 | +14.07% | 0.00 | +0.00% | 0.75% |
| 26 | INTC | Intel | 250.95 | 108.15 | 27,140.63 | 25,000.00 | 2,140.63 | +8.56% | 0.00 | +0.00% | 3.25% |
| 27 | LRCX | Lam Research | 7.16 | 275.80 | 1,975.06 | 1,838.43 | 136.63 | +7.43% | 0.00 | +0.00% | 0.24% |
| 28 | MKSI | MKS Instruments | 7.75 | 287.65 | 2,227.85 | 2,163.79 | 64.06 | +2.96% | 0.00 | +0.00% | 0.27% |
| 29 | MOD | Modine Manufacturing | 8.67 | 271.60 | 2,354.42 | 2,313.06 | 41.36 | +1.79% | 0.00 | +0.00% | 0.28% |
| 30 | MPWR | Monolithic Power Systems | 6.16 | 1,588.12 | 9,775.20 | 9,746.66 | 28.54 | +0.29% | 0.00 | +0.00% | 1.17% |
| 31 | MRVL | Marvell Technology | 38.96 | 168.75 | 6,574.87 | 6,426.81 | 148.06 | +2.30% | 0.00 | +0.00% | 0.79% |
| 32 | MU | Micron Technology | 20.56 | 640.20 | 13,161.87 | 11,147.31 | 2,014.56 | +18.07% | 0.00 | +0.00% | 1.58% |
| 33 | NOK | Nokia | 542.33 | 13.42 | 7,278.09 | 7,213.01 | 65.08 | +0.90% | 0.00 | +0.00% | 0.87% |
| 34 | NVT | nVent Electric | 23.12 | 169.41 | 3,917.23 | 3,674.67 | 242.56 | +6.60% | 0.00 | +0.00% | 0.47% |
| 35 | ON | onsemi | 149.84 | 102.67 | 15,383.78 | 15,437.72 | -53.94 | -0.35% | 0.00 | +0.00% | 1.84% |
| 36 | ONTO | Onto Innovation | 15.40 | 305.00 | 4,695.78 | 4,509.81 | 185.97 | +4.12% | 0.00 | +0.00% | 0.56% |
| 37 | PDFS | PDF Solutions | 88.11 | 46.35 | 4,084.08 | 3,925.48 | 158.60 | +4.04% | 0.00 | +0.00% | 0.49% |
| 38 | PLAB | Photronics | 53.22 | 51.00 | 2,714.02 | 2,669.32 | 44.70 | +1.67% | 0.00 | +0.00% | 0.33% |
| 39 | QCOM | Qualcomm | 25.96 | 186.55 | 4,841.94 | 4,594.33 | 247.61 | +5.39% | 0.00 | +0.00% | 0.58% |
| 40 | SNDK | SanDisk | 14.14 | 1,406.32 | 19,880.58 | 16,780.09 | 3,100.49 | +18.48% | 0.00 | +0.00% | 2.38% |
| 41 | SNPS | Synopsys | 5.59 | 502.51 | 2,810.49 | 2,735.05 | 75.44 | +2.76% | 0.00 | +0.00% | 0.34% |
| 42 | STM | STMicroelectronics | 259.43 | 57.18 | 14,834.48 | 14,463.49 | 370.99 | +2.57% | 0.00 | +0.00% | 1.78% |
| 43 | TXN | Texas Instruments | 36.12 | 281.00 | 10,149.13 | 10,149.85 | -0.72 | -0.01% | 0.00 | +0.00% | 1.22% |
| 44 | VRT | Vertiv | 9.52 | 341.02 | 3,246.48 | 3,125.47 | 121.01 | +3.87% | 0.00 | +0.00% | 0.39% |
| — | TOTAL | — | — | — | 648,844.65 | 333,095.76 | 315,748.89 | +94.79% | — | — | 77.79% |
Equities (EUR)
| # | Symbol | Name | Units | Price | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 8035.T | Tokyo Electron | 10.73 | 334.88 | 3,593.80 | 3,218.72 | 375.08 | +11.65% | 0.00 | +0.00% | 0.43% |
| 2 | AIXA.DE | Aixtron | 94.49 | 59.00 | 5,574.79 | 5,212.90 | 361.89 | +6.94% | 0.00 | +0.00% | 0.67% |
| 3 | ASM.AS | ASM International | 3.83 | 1,040.08 | 3,987.46 | 3,739.24 | 248.22 | +6.64% | 0.00 | +0.00% | 0.48% |
| 4 | ATS.VI | AT&S | 176.12 | 118.60 | 20,888.01 | 19,399.78 | 1,488.23 | +7.67% | 0.00 | +0.00% | 2.50% |
| 5 | IFX.DE | Infineon | 186.07 | 69.83 | 12,993.34 | 12,483.51 | 509.83 | +4.08% | 0.00 | +0.00% | 1.56% |
| 6 | LPK.DE | LPKF Laser & Electronics | 1286.67 | 27.59 | 35,499.23 | 25,000.00 | 10,499.23 | +42.00% | 0.00 | +0.00% | 4.25% |
| 7 | SMHN.DE | SÜSS MicroTec | 73.45 | 96.03 | 7,053.34 | 6,572.24 | 481.10 | +7.32% | 0.00 | +0.00% | 0.85% |
| 8 | SOI.PA | Soitec | 167.71 | 173.13 | 29,035.01 | 25,000.00 | 4,035.01 | +16.14% | 0.00 | +0.00% | 3.48% |
| 9 | SU.PA | Schneider Electric | 6.73 | 333.29 | 2,241.54 | 2,121.29 | 120.25 | +5.67% | 0.00 | +0.00% | 0.27% |
| 10 | TPRO.MI | Technoprobe | 152.56 | 21.74 | 3,316.56 | 3,301.30 | 15.26 | +0.46% | 0.00 | +0.00% | 0.40% |
| 11 | WAF.DE | Siltronic | 128.38 | 97.32 | 12,494.04 | 12,015.18 | 478.86 | +3.99% | 0.00 | +0.00% | 1.50% |
| — | TOTAL | — | — | — | 136,677.12 | 118,064.16 | 18,612.96 | +15.77% | — | — | 16.39% |
Equities (TWD)
| # | Symbol | Name | Units | Price | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2308.TW | Delta Electronics | 78.63 | 70.29 | 5,526.83 | 5,384.51 | 142.32 | +2.64% | 0.00 | +0.00% | 0.66% |
| 2 | 3037.TW | Unimicron | 664.57 | 26.13 | 17,365.32 | 18,561.55 | -1,196.23 | -6.44% | 0.00 | +0.00% | 2.08% |
| — | TOTAL | — | — | — | 22,892.15 | 23,946.06 | -1,053.91 | -4.40% | — | — | 2.74% |
Equities (HKD)
| # | Symbol | Name | Units | Price | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0522.HK | ASMPT | 603.57 | 21.57 | 13,019.03 | 12,566.35 | 452.68 | +3.60% | 0.00 | +0.00% | 1.56% |
| — | TOTAL | — | — | — | 13,019.03 | 12,566.35 | 452.68 | +3.60% | — | — | 1.56% |
Equities (CHF)
| # | Symbol | Name | Units | Price | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | COTN.SW | Comet Group | 8.55 | 408.40 | 3,490.43 | 3,357.45 | 132.98 | +3.96% | 0.00 | +0.00% | 0.42% |
| 2 | IFCN.SW | INFICON | 33.38 | 194.28 | 6,484.97 | 6,167.86 | 317.11 | +5.14% | 0.00 | +0.00% | 0.78% |
| 3 | VACN.SW | VAT Group | 3.76 | 770.94 | 2,895.96 | 2,802.34 | 93.62 | +3.34% | 0.00 | +0.00% | 0.35% |
| — | TOTAL | — | — | — | 12,871.36 | 12,327.65 | 543.71 | +4.41% | — | — | 1.55% |
Summary
| Group | Mkt Value | Cost Basis | Unrealized | % Unr | Realized | % Rlz | % Port |
|---|---|---|---|---|---|---|---|
| Equities (USD) | 648,844.65 | 333,095.76 | 315,748.89 | +94.79% | — | — | 77.79% |
| Equities (EUR) | 136,677.12 | 118,064.16 | 18,612.96 | +15.77% | — | — | 16.39% |
| Equities (TWD) | 22,892.15 | 23,946.06 | -1,053.91 | -4.40% | — | — | 2.74% |
| Equities (HKD) | 13,019.03 | 12,566.35 | 452.68 | +3.60% | — | — | 1.56% |
| Equities (CHF) | 12,871.36 | 12,327.65 | 543.71 | +4.41% | — | — | 1.55% |
| TOTAL (USD) | 834,304.31 | 499,999.98 | 334,304.33 | +66.86% | 0.00 | — | — |
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Methodology & disclaimer
Rubin Sector Rotation 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. Active rule-based rotation — performance reflects signal quality + rebalance cadence.
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.