Just positions. Nothing else.
What Custodios Index is exploring, and why.
Custodios Index is the index arm of Custodios — the intellectual project dedicated to multigenerational wealth, long-term thinking, and financial clarity. Where Custodios explores philosophy and strategy, Custodios Index applies that thinking to a single, precise question: what does the global market ranking tell us about where capital should be deployed?
The answer: Just positions. Nothing else.
There are tens of thousands of investment indexes in the world. Each serves a different purpose, and many have helped millions of investors build wealth. We respect that work.
Custodios Index was built around a specific question: what would an index look like if it were designed to remain meaningful across centuries — not just across market cycles?
This is our exploration of that question.
01. Learning from the S&P 500.
The S&P 500 has been an enormously valuable index. Part of what makes it powerful is that it captures a position — “the 500 largest US companies” — rather than a fixed list of names.
When companies change, the index adapts. When IBM's relative position shifted, Apple rose. The position persists even as constituents rotate.
Custodios Index is built on this insight, extended globally: positions in the world market, with no country filter, across seven carefully selected indexes covering distinct tiers of the global ranking.
02. We index positions, not names.
Many indexes work beautifully because they capture positions. The names that fill those positions evolve over time, and that's the design.
Custodios Index applies this principle in its most distilled form. We don't build indexes around specific companies. We define positions, and let markets determine who fills them.
If a company we don't currently hold rises into the top 10, our indexes will hold it. If a current constituent falls out, our indexes will release it. That's the system working as intended.
03. No country, sector, or theme filter.
Most indexes filter by geography, sector, or theme. Each filter is a bet on what will keep mattering. Country-specific indexes (S&P 500, FTSE 100, Nikkei 225), sector funds, and thematic baskets all serve real purposes — and we respect that work.
Custodios Index makes a different bet: that the concept of “the largest N companies in the world” survives shifts in geographic leadership, sector rotation, and the rise and fall of themes. Whichever country, sector, or theme dominates at a given moment, its leaders surface in our positional indexes automatically.
This is not a judgment about those other frameworks. It is a different question for a different time horizon.
What we're building.
Custodios Index publishes seven positional indexes. That is the entire official catalog.
Six of these represent the documented winners of analysis across 100 candidate positional configurations. Each survived three filters: outperformance over the S&P 500 across 15 years, Sharpe ratio above 0.70, and structural defensibility of methodology.
We also publish the analysis itself — including the candidates that did not enter the catalog. Transparency about what we considered and rejected matters as much as transparency about what we built.
On volatility.
Custodios Index holds an unconventional perspective on volatility that informs our catalog design. We believe volatility should not be treated as a uniform risk to minimize — it should be matched to the investor's time horizon and contribution discipline.
For investors with multidecade horizons and disciplined regular contributions, high volatility is not a penalty. It is the mechanism through which capital compounds more efficiently over time. The mathematics of dollar-cost averaging into volatile assets transforms drawdowns into accumulation opportunities.
For investors with shorter horizons or irregular contributions, the same volatility becomes liability. The strategy must match the investor.
This is why our catalog spans the volatility spectrum: from CI-WORLD3 (vol 26%) designed for the patient compounder, to CI-FUTURELEADERS (vol 16%) designed for the investor prioritizing stability. The choice is the investor's. Our role is to publish both honestly.
Our commitment.
When we evaluate whether to publish a new index, our default question is whether it would have made sense a hundred years ago and might still make sense a hundred years from now. Indexes that pass this filter are our priority.
The barrier is high by design. Seven is enough for now.
The companies that fill our indexes will change. The positions they fill — by design — should be more stable.
To whoever reads this:
Custodios Index exists for a specific kind of investor — someone managing capital with horizons that stretch across decades or generations, who wished for indexes designed with that timeframe in mind.
Many indexes are excellent and serve millions of investors well. Most are designed around shorter horizons, narrower geographies, or specific themes. For someone thinking about how capital should remain meaningful across a century, a different framework can be useful.
We don't know if our framework is right. We do know it is our honest attempt at the question. If it is useful to you, we are glad to help. If a different approach serves you better, that is a perfectly valid choice.
— Custodios Index Indexes
Companies are mortal. Positions are eternal.
Custodios Index Indexes. Built with the long view in mind.