Reference Portfolio · Updated
Rubin Equal Weight
1/N at 2025-12-30 inception, quarterly last-trading-day rebalance back to equal weight. Notional 500k USD.
Thesis
Rubin Equal Weight mirrors the live CL-RUBIN-EW index methodology: at inception, every constituent of the Rubin Build-Out 100 receives the same dollar weight (1/N). Each calendar quarter end, the portfolio is rebalanced back to equal weights — winners are trimmed, laggards are topped up. A pure expression of the breadth thesis with mechanical mean-reversion baked in.
Inception: 2025-12-30 with $500,000 notional, spread equal-weight across the 102 constituents at their local-currency closing prices, FX-converted to USD at the inception spot rate. The universe expanded to 125 at the 2026-06-30 reconstitution. Fractional shares permitted.
Rebalance schedule: last trading day of each calendar quarter — Mar 31 / Jun 30 / Sep 30 / Dec 31. At each rebalance, the current portfolio market value is divided by N (102 at inception, 125 from the 2026-06-30 reconstitution) and each name is reset to that target dollar exposure at the close. Between rebalances, weights drift naturally with price action.
Composition and per-name attribution below. Live index variant: Rubin Build-Out 100 → CL-RUBIN-EW.
Structure
- Equities125
125 equity positions · US, UK, Taiwan, Israel, Netherlands, Germany, Japan, Switzerland, Singapore/HK, South Korea, Italy, Austria, France, US/Thailand, Finland, US/Germany, Hong Kong/China . Benchmark: Rubin Build-Out EW (quarterly last-trading-day rebalance) (CL-RUBIN-EW).
Top Holdings
125 total positions — top 10 by weight shown. Tracker portfolio — prices and constituents from the Rubin index worker.
Related
Closelook C+ Portfolio
Real-time access for founding subscribers
Free readers see this end-of-day snapshot of the top positions. Founding subscribers also get every position with cost basis and per-position P&L, the full trade log in real time as moves happen, and the long-form weekly commentary that explains every change.
- Every position with cost basis, market value, and unrealized P&L
- Real-time trade log (free readers see weekly digest)
- Long-form commentary with the rationale behind every move
- Push notifications when positions open, close, or resize
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. Quarterly mechanical rebalancing; small tracking error vs. the live index from price-vendor variations 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.