Five minds. One portfolio. Zero noise.
Five minds
A portfolio
Zero noise
Ask in plain language. Elisa puts it in circulation across the team and Cerebro answers with sources, limits and cost. And it gives a verdict, not an «it depends».
History of this desk
Elisa is an artificial intelligence, not a person. Her answers are generated by an AI model.
This is general analysis and not a personalised investment recommendation. The person who invests is the one who decides. The chat may search the internet when the vault does not know the answer (a figure from today, a recent news item); those internet sources nobody has reviewed them and they may be incomplete or wrong, so check them before acting. The five profiles that sign the answers (Elisa, Jorne, Carlos Bárez, Daniel Ferrer, Inés Torres) are specialisms of one single automatic system: they are not people nor registered advisers.
Tools
Note down your positions and watch how they do. Without an account they are stored only in this browser; with an account, they sync across devices.
What leaves your browser
When you ask in the chat, the text of the question and the history of that conversation are sent. If you have saved reading preferences, the vocabulary level and the depth are sent too. Your saved positions they are not attached to the chat; the portfolio and the scenarios use them in their own sections. That is why answers are general and not personalised: Cerebro is not financial advice. Avoid writing personal or financial data that is not needed. The securities search sends the search text and price queries send the symbols. See the privacy policy to find out which providers there are and what else is used.With your session signed in, positions are are stored in your account: they sync across devices and are deleted with the account. Type the name or the ticker and pick from the list so we know exactly which security it is and which exchange it trades on.
Load portfolio from text
One position per line: TICKER [shares] [price]. The comma works as a decimal point. Repeating a ticker updates it.
Your portfolio starts with one position. Add a security at the top and, if you want, the shares and the entry price.
Scenarios
Two hypothetical accounts with the assumptions you set. They do not predict the market nor rely on your portfolio: they show what what you type implies. If a figure is missing, the screen says: n/a and why. Never a zero that can be read as data.
Search by title or subject; not inside the notes.
Tools · Free, no sign-up
Model portfolios
Seven example portfolios for the long term, almost all with a known author: their composition, the idea behind them, where they come from and the environments in which each one struggles.
They are examples, not recommendations. This site does not read your portfolio or your account, does not ask you for any data and knows nothing about you: it explains how these portfolios are designed, which is a different thing from saying what to do with what you have.
They are ordered from highest to lowest equity exposure. This is not a ranking of preference: it is how you can see how the split between equities, bonds, gold and commodities changes.
The seven portfolios
100 % equities
100 % Renta variable de países desarrollados
- Anualizada
- 10,0 %
- Total
- 708,9 %
sep-2004 – ago-202622 años
80/20
80 % Renta variable de países desarrollados · 20 % Deuda pública de la zona euro (todos los plazos)
- Anualizada
- 8,7 %
- Total
- 525,3 %
sep-2004 – ago-202622 años
60/40
60 % Renta variable de países desarrollados · 40 % Deuda pública de la zona euro (todos los plazos)
- Anualizada
- 7,3 %
- Total
- 368,9 %
sep-2004 – ago-202622 años
Three funds (Bogleheads)
54 % Renta variable de países desarrollados · 6 % Renta variable emergente · 40 % Deuda pública de la zona euro (todos los plazos)
- Anualizada
- 7,4 %
- Total
- 376,7 %
sep-2004 – ago-202622 años
Permanent Portfolio (Harry Browne)
25 % Renta variable de países desarrollados · 25 % Deuda pública de la zona euro a 15-30 años · 25 % Deuda pública de la zona euro a menos de un año · 25 % Oro físico
- Anualizada
- 7,1 %
- Total
- 352,5 %
sep-2004 – ago-202622 años
simplified All Weather
30 % Renta variable de países desarrollados · 40 % Deuda pública de la zona euro a 15-30 años · 15 % Deuda pública de la zona euro a 7-10 años · 7,5 % Oro físico · 7,5 % Materias primas diversificadas
- Anualizada
- 6,5 %
- Total
- 298,7 %
sep-2004 – ago-202622 años
Golden Butterfly
20 % Renta variable de países desarrollados · 20 % Pequeñas empresas «value» de EE. UU. · 20 % Deuda pública de la zona euro a 15-30 años · 20 % Deuda pública de la zona euro a 1-3 años · 20 % Oro físico
- Anualizada
- 8,0 %
- Total
- 440,4 %
sep-2004 – ago-202622 años
Los instrumentos que verás en cada ficha son de referencia para cada índice, no una selección de producto: la tabla dice qué fondo sigue cada índice, y no es una lista de compras.
Test your allocation
Escribe tus pesos o parte de una cartera modelo. Es una hipótesis sobre datos pasados: no anticipa resultados futuros.
Cómo se ha calculado y de dónde salen los datos
Rentabilidades pasadas no garantizan rentabilidades futuras.
Simulación con índices reconstruidos a partir de datos públicos (BCE, Banco Mundial, Kenneth R. French); no es la rentabilidad de ningún fondo ni ETF. Sin comisiones, impuestos ni costes de cambio.
Rebalanceo anual al cierre de diciembre, rentabilidad total y divisa euro. Cada mes, cada tramo crece con el índice del suyo; al cierre de cada diciembre la cartera vuelve a los pesos de la ficha. La ventana va de sep-2004 – ago-2026, 22 años de rentabilidad, y todo está en euros, convertidos con el tipo de cambio de fin de mes del BCE. Los índices de renta variable y de deuda son de rentabilidad total; el del oro es el precio del metal y el de materias primas es un índice spot, así que no incluyen ni el roll ni la rentabilidad del colateral de los futuros.
Las fuentes
- Kenneth R. French Data Library, Developed 3 Factors (mensual): Equities from developed countries. Kenneth R. French Data Library, © Eugene F. Fama y Kenneth R. French; se cita la fuente y no se modifica la estadística.
- Kenneth R. French Data Library, Emerging 5 Factors (mensual): Emerging-market equities. Kenneth R. French Data Library, © Eugene F. Fama y Kenneth R. French; se cita la fuente y no se modifica la estadística.
- Kenneth R. French Data Library, 6 Portfolios 2x3 (mensual): US small-cap «value». Kenneth R. French Data Library, © Eugene F. Fama y Kenneth R. French; se cita la fuente y no se modifica la estadística.
- Banco Central Europeo, ESTR (diario) y EONIA (mensual): Eurozone public debt at under one year. Banco Central Europeo, Data Portal. Reutilización gratuita, también comercial, citando la fuente y sin modificar la serie.
- Banco Central Europeo, curva de rendimientos a la par (YC, G_N_C): Eurozone public debt at 1-3 years · Eurozone public debt (all maturities) · Eurozone public debt at 7-10 years · Eurozone public debt at 15-30 years. Banco Central Europeo, Data Portal. Reutilización gratuita, también comercial, citando la fuente y sin modificar la serie.
- Banco Mundial, Pink Sheet, hoja «Monthly Prices», columna Gold: Physical gold. Banco Mundial, Pink Sheet (Commodity Markets Outlook). © Banco Mundial, CC BY 4.0.
- Banco Mundial, Pink Sheet, hoja «Monthly Indices», columna Total Index: Diversified commodities. Banco Mundial, Pink Sheet (Commodity Markets Outlook). © Banco Mundial, CC BY 4.0.
Your account
Your portfolio and your saved notes, also on your other devices. Without an account you can keep using the portfolio in this browser. When you delete your account, the associated data is deleted too.
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Adjust how we explain it to you
Two optional questions: your vocabulary level and your preferred depth. They are used to adapt the explanation. We do not ask about amounts of money and we do not run a suitability assessment. The answers are generated by the system and may contain errors; these preferences do not guarantee that the result is identical in every case.