Building a 3-ETF Portfolio: Simple and Effective Method
Creating an optimized and easy-to-manage ETF (Exchange Traded Fund) portfolio is an accessible and relevant approach for the French retail investor. Inspired by the famous “3-Fund Portfolio” method popularized by Jack Bogle, founder of Vanguard, we adapt this approach here to the specificities of the French market, notably by including ETFs eligible for the Plan d’Épargne en Actions (PEA) to benefit from advantageous taxation.
The Jack Bogle 3-Fund Portfolio: Basic Principles
The concept of the “3-Fund Portfolio” is based on geographic and sector diversification through three major ETFs, each representing a key investment bucket:
Developed World Equities (70%)
Emerging Markets Equities (20%)
Government Bonds (10%)
The goal is to ensure broad and balanced exposure to different asset classes, with minimal fees and complexity.
French Adaptation: ETF Selection and Allocation
For a French investor, it is crucial to select ETFs compatible with the PEA to benefit from favorable taxation (capital gains tax exemption after 5 years, excluding social contributions). With this in mind, we recommend the following combination:
Asset Class
ETF
ISIN
Target Allocation
Annual Fees (TER)
Geographic Coverage
Developed World Equities
Lyxor MSCI World (CW8)
FR0010315770
70%
0.30%
22 Developed Countries (ex USA)
Emerging Markets Equities
iShares Core MSCI Emerging Markets IMI (EMIM)
IE00BKM4GZ66
20%
0.18%
26 Emerging Countries
Global Government Bonds
iShares Global Govt Bond UCITS ETF (IEAG)
IE00B1FZS350
10%
0.20%
Global Sovereign Bonds
Note: CW8 is a very popular ETF on Euronext Paris, PEA eligible, offering broad exposure to developed equities excluding the USA. EMIM and IEAG are only eligible on a standard brokerage account (CTO) as they are not PEA compatible.
100% PEA Alternative: Eligible ETFs and Allocation
For investors wishing to remain 100% within their PEA, it is possible to replace EMIM and IEAG with PEA-compatible ETFs, although this reduces diversification:
CW8 (70%): still the core, developed world equities.
Amundi MSCI Emerging Markets PEA (AEME): about 20%, ISIN FR0013412021, TER 0.25%.
Amundi Euro Government Bond PEA (EGA): about 10%, ISIN FR0010754061, TER 0.20%.
This alternative ensures 100% PEA management but with bond exposure focused on the Eurozone and slightly narrower emerging equities diversification.
Imagine an investor starting with €10,000 and adding €300 each month. The target allocation is maintained at 70/20/10. Rebalancing will be done once a year to return to the initial weights, thus limiting fees and complexity.
Simulation Assumptions
Duration: 20 years
Estimated average annual net return (after fees):
CW8 (MSCI World): 6.0%
EMIM (Emerging Markets): 7.5%
IEAG (Bonds): 2.0%
Annual rebalancing
No withdrawals
Portfolio Value Projection
Year
Portfolio Value (€)
Actual Allocation (%)
Comments
0
10,000
70/20/10
Start
5
31,500
69/21/10
Slight overweight in emerging markets
10
59,000
70/20/10
Annual rebalancing maintains allocation
15
95,000
70/20/10
Steady growth, low volatility
20
140,000
70/20/10
Capital multiplied by 14
Note: These figures are indicative and based on average historical returns. Market volatility may affect the actual trajectory.
Analysis and Advantages of This Method
Simplicity: with only three ETFs, management is simplified, fees are reduced (average TER around 0.2-0.3%), and monitoring is easier.
Diversification: allocation across developed equities, emerging equities, and bonds protects against excessive fluctuations in any single asset class.
Optimized Taxation: by prioritizing PEA-eligible ETFs for the equity portion, the investor benefits from favorable long-term taxation.
Annual Rebalancing: this frequency limits transaction costs while maintaining the target allocation, encouraging investment discipline.
Practical Recommendations for French Investors
Favor the PEA for the equity portion (CW8, AEME) to optimize taxation.
A CTO may be necessary for the bond portion if you want global diversification (IEAG); otherwise, favor a Eurozone bond ETF compatible with the PEA.
Build a solid initial capital (€10,000 or more), then automate monthly contributions (€300 in the example) to smooth market effects.
Perform annual rebalancing to maintain the strategy without complicating management.
Monitor TERs: low fees are a key lever for long-term performance.
Conclusion
The 3-fund portfolio adapted to the French market, combining CW8 (70%), EMIM (20%), and IEAG (10%), or their 100% PEA alternative, offers a simple, effective, and tax-optimized method to build wealth invested in ETFs. This strategy combines diversification, cost control, and discipline—essential ingredients to maximize the chances of long-term success. For a beginner or intermediate investor, setting up such a portfolio with an initial contribution of €10,000 and regular monthly payments of €300, rebalanced annually, can potentially multiply capital by 14 over 20 years while limiting complexity and unnecessary risks.
Investing in ETFs using this method is therefore an excellent opportunity for French investors wishing to gain exposure to global markets with a simple, efficient, and tax-advantaged tool.
