Over the three months to 20 October the S&P 500 rose about 3.6%. Some of our official portfolios did eight times better than that. Others lost more than a fifth of their value. Here is the whole table, sorted by the last three months and updated every day.
The top of the table
Top 10 official portfolios over 3 months
| Portfolio | 1 month | 3 months | 1 year | S&P 500, 1 year |
|---|---|---|---|---|
| AI Drug Discovery Index10 companies | +5.0% | +34.6% | +28.0% | +15.2% |
| US Cloud SaaS Index12 companies | +5.4% | +34.5% | −10.1% | +15.2% |
| AI Agents & Agentic Software Index10 companies | +5.8% | +30.0% | −6.1% | +15.2% |
| US & Middle East Energy Index10 companies | +10.9% | +23.1% | +65.9% | +15.2% |
| Defence-AI Convergence Index12 companies | −1.6% | +19.5% | −23.5% | +15.2% |
| US & Israel Cybersecurity Index12 companies | −2.5% | +15.8% | +62.9% | +15.2% |
| Stablecoin Infrastructure Index10 companies | −3.5% | +14.4% | −28.8% | +15.2% |
| Cloud Dominance Index3 companies | +1.1% | +11.5% | +16.9% | +15.2% |
| Surgical Robotics Index8 companies | +3.0% | +9.8% | +10.6% | +15.2% |
| Hypergrowth Tech Index3 companies | +1.0% | +9.4% | +10.1% | +15.2% |
Prices up to 21 October 2026. Returns before each portfolio was made are simulated from real past prices, with no fees or taxes. Past performance is not a guide to the future.
The full live table
Every official portfolio whose prices are up to date, best first over three months. Click any name to see its companies, weights and the reason each one was picked.
All official portfolios, sorted by 3-month return
| Portfolio | 1 month | 3 months | 1 year | S&P 500, 1 year |
|---|---|---|---|---|
| AI Drug Discovery Index10 companies | +5.0% | +34.6% | +28.0% | +15.2% |
| US Cloud SaaS Index12 companies | +5.4% | +34.5% | −10.1% | +15.2% |
| AI Agents & Agentic Software Index10 companies | +5.8% | +30.0% | −6.1% | +15.2% |
| US & Middle East Energy Index10 companies | +10.9% | +23.1% | +65.9% | +15.2% |
| Defence-AI Convergence Index12 companies | −1.6% | +19.5% | −23.5% | +15.2% |
| US & Israel Cybersecurity Index12 companies | −2.5% | +15.8% | +62.9% | +15.2% |
| Stablecoin Infrastructure Index10 companies | −3.5% | +14.4% | −28.8% | +15.2% |
| Cloud Dominance Index3 companies | +1.1% | +11.5% | +16.9% | +15.2% |
| Surgical Robotics Index8 companies | +3.0% | +9.8% | +10.6% | +15.2% |
| Hypergrowth Tech Index3 companies | +1.0% | +9.4% | +10.1% | +15.2% |
| Bitcoin Treasury Companies Index8 companies | −5.8% | +8.5% | −29.5% | +15.2% |
| AR/VR & Spatial Computing Index10 companies | −1.7% | +7.8% | +18.2% | +15.2% |
| Drone Warfare Index10 companies | −4.4% | +7.4% | −27.5% | +15.2% |
| AI Core 3 Index3 companies | −3.9% | +6.0% | +18.2% | +15.2% |
| Consumer Platform Monopoly Index3 companies | −1.0% | +5.2% | +16.6% | +15.2% |
| Japan Corporate Reform Index10 companies | −3.4% | +5.2% | +20.7% | +15.2% |
| Robotaxi & Autonomy Index10 companies | −1.9% | +5.0% | +13.1% | +15.2% |
| Magnificent 7 Equal-Weight Index7 companies | −3.2% | +4.4% | +12.1% | +15.2% |
| US Big Tech Index10 companies | −3.6% | +3.8% | +13.1% | +15.2% |
| Latin America Fintech Index8 companies | +3.5% | +3.3% | −11.6% | +15.2% |
| Humanoid Robotics Index10 companies | −3.2% | +2.7% | +11.0% | +15.2% |
| Pet Healthcare Index10 companies | +6.7% | +2.6% | −15.5% | +15.2% |
| Off-Price & Discount Retail Index9 companies | +7.5% | +2.6% | +9.8% | +15.2% |
| Crypto Exchanges & Brokers Index8 companies | −12.2% | +2.2% | −25.2% | +15.2% |
| Cruise & Travel Recovery Index12 companies | +9.2% | +1.9% | +7.3% | +15.2% |
| Pure Semiconductor Monopoly Index3 companies | −7.9% | +1.8% | +45.6% | +15.2% |
| Digital Identity & Verification Index10 companies | +2.0% | +1.8% | −1.6% | +15.2% |
| India Manufacturing Renaissance Index10 companies | +2.3% | +1.8% | −2.3% | +15.2% |
| US & China Digital Consumer Platforms Index10 companies | −2.1% | +1.1% | −7.2% | +15.2% |
| Extreme Growth Leaders Index, 10Y Momentum-Weighted10 companies | −7.3% | +0.6% | +38.3% | +15.2% |
| AI Infrastructure Max Concentration Index3 companies | −5.2% | +0.4% | +19.2% | +15.2% |
| India & Emerging Markets Banks Index10 companies | −1.2% | +0.3% | +6.6% | +15.2% |
| Semiconductors US & Taiwan Index10 companies | −6.5% | +0.2% | +44.2% | +14.7% |
| Sovereign AI Infrastructure Index12 companies | −4.9% | +0.2% | +25.8% | +15.2% |
| AgTech & Precision Farming Index10 companies | −7.0% | +0.1% | +20.5% | +15.2% |
| Global Lithium & Copper Mining Index12 companies | −7.2% | −0.0% | +45.5% | +15.2% |
| Custom AI Silicon ASIC Index8 companies | −3.1% | −0.6% | +33.1% | +15.2% |
| American Reshoring & Industrial Renaissance Index15 companies | +1.7% | −0.6% | +21.3% | +15.2% |
| Global Multi-Sector Leaders, Momentum-Weighted Top 1010 companies | −9.6% | −1.4% | +130.5% | +15.2% |
| Live Entertainment & Concerts Index8 companies | +1.3% | −2.2% | +19.3% | +15.2% |
| US AI Infrastructure Index12 companies | −8.8% | −2.3% | +37.6% | +15.2% |
| US & China EV Supply Chain Index12 companies | −0.5% | −2.5% | −14.8% | +15.2% |
| Carbon Capture & Climate Tech Index10 companies | −7.8% | −4.2% | +16.6% | +15.2% |
| China EV & Battery Monopoly Index3 companies | −2.7% | −4.4% | −16.3% | +15.2% |
| Edge AI & Inference Index10 companies | −9.6% | −4.6% | +87.1% | +15.2% |
| US & China Lithium Battery Supply Chain Index10 companies | −3.2% | −4.7% | −16.1% | +15.2% |
| Hydrogen Economy Index8 companies | −5.1% | −5.1% | +32.6% | +15.2% |
| Hypersonics & Missile Defense Index10 companies | −4.1% | −5.2% | −18.9% | +15.2% |
| Generational Wealth Transfer Index12 companies | −0.7% | −6.0% | −52.4% | +15.2% |
| Korea Tech & Memory Index7 companies | −13.7% | −6.2% | +42.7% | +15.2% |
| Saudi Vision 2030 Index10 companies | −5.9% | −6.3% | +17.2% | +15.2% |
| Battery Storage & ESS Index9 companies | −0.9% | −6.5% | −15.0% | +15.2% |
| AI Power Grid Index12 companies | +0.5% | −7.1% | +0.4% | +15.2% |
| Mexico Friendshoring Index10 companies | +3.1% | −7.1% | +8.4% | +15.2% |
| Photonics & Optical Networking Index10 companies | −9.4% | −7.9% | +57.4% | +15.2% |
| 5G & Telecom Infrastructure Index10 companies | −2.7% | −7.9% | +24.5% | +15.2% |
| China E-Commerce Index7 companies | −1.8% | −8.5% | −34.7% | +15.2% |
| Geothermal & Next-Gen Energy Index8 companies | −11.0% | −10.7% | −40.5% | +15.2% |
| GLP-1 Obesity Boom Index8 companies | −0.6% | −11.6% | +6.7% | +15.2% |
| Restaurant Growth Chains Index10 companies | −1.2% | −11.6% | −28.4% | +15.2% |
| Quantum Computing Vanguard Index10 companies | −19.5% | −11.8% | −49.9% | +15.2% |
| Grid Transmission & T&D Index10 companies | −6.1% | −13.0% | +19.9% | +15.2% |
| Global Luxury Goods Index9 companies | +1.4% | −13.3% | −22.2% | +15.2% |
| HBM Memory Supercycle Index8 companies | −12.9% | −13.7% | +150.4% | +15.2% |
| Satellite Internet Index8 companies | −15.7% | −14.2% | +3.4% | +15.2% |
| Nuclear Renaissance Index15 companies | −10.6% | −14.4% | −41.4% | +15.2% |
| US Data Centres Index10 companies | −8.2% | −17.2% | +5.4% | +15.2% |
| Semiconductor Equipment Oligopoly Index3 companies | −8.1% | −19.0% | +15.8% | +15.2% |
| eVTOL & Air Taxi Index8 companies | −8.0% | −19.3% | −27.4% | +15.2% |
| Semiconductor Equipment NL/JP/US Index8 companies | −10.4% | −19.5% | +43.3% | +15.2% |
| ASEAN Growth Index10 companies | −19.0% | −19.9% | −40.1% | +15.2% |
| Global Solar Index9 companies | −8.7% | −20.5% | −18.3% | +15.2% |
| Sports Betting & iGaming Index9 companies | −9.8% | −23.5% | −34.9% | +15.2% |
| Space Economy Infrastructure Index12 companies | −23.8% | −24.7% | −27.1% | +15.2% |
| Liquid Cooling Pure-Play Index8 companies | −15.3% | −28.8% | +10.1% | +15.2% |
Prices up to 21 October 2026. Returns before each portfolio was made are simulated from real past prices, with no fees or taxes. Past performance is not a guide to the future.
What led, and why
- AI drug discovery, up about 32% over three months to 20 October, a large move for a small group of biotech companies that use machine learning to find drugs.
- Cloud software and AI agents, up about 30% and 25%, a sharp recovery after a weak twelve months.
- Energy, up about 25%, carried by oil climbing back towards $110.
- Defence and AI, up about 17%, though still down over twelve months.
What lagged
- Liquid cooling for data centres, down about 28%.
- Sports betting and iGaming, down about 24%.
- Space infrastructure, down about 22%, and solar, down about 19%.
How to read a league table
Three months is a short time. The best performers of one quarter are often among the worst of the next, and several of this quarter’s leaders were near the bottom a year ago. Before acting on a table like this, look at the twelve-month column, the biggest fall in the backtest and how concentrated the portfolio is. A three-company portfolio can top the table one month and fall to the bottom the next.
Arithmos is a research tool. Past performance is not a guide to the future.
