What is an ETF and how does it work?
An ETF is a basket of securities that tracks an index (like the S&P 500 or MSCI World) and trades on stock exchanges just like an individual stock.
The main advantage over active mutual funds is cost. While active funds often charge 1.5-2.0% annually, passive ETFs charge 0.05-0.30%. Over 20 years, that fee savings translates into tens of thousands of euros in compound wealth.
Main types of ETFs
ETFs exist for virtually every asset class: global equities, government/corporate bonds, commodities (gold), real estate (REITs), and thematic sectors.
- Global equity ETFs (e.g., MSCI World, ACWI): maximum broad-market diversification.
- Fixed income ETFs (e.g., Bloomberg Global Aggregate): lower volatility, lower returns.
- Commodity ETFs (e.g., Physical Gold): hedging against inflation and instability.
- Sector ETFs: targeted industry exposure (best kept as tactical additions).
Costs and fee structures
The primary ongoing cost of an ETF is its TER (Total Expense Ratio), automatically deducted from fund net asset value. Brokerage commissions may also apply when buying or selling shares.
How to start building an ETF portfolio
Open an account with a low-cost regulated broker. Define your asset allocation and time horizon. For most investors, a broad global equity ETF (such as MSCI World) serves as a robust core holding.
Consistency and low fees beat market timing. Connect your portfolio tracking with your net worth dashboard to monitor real progress.
Apply This Knowledge to Your Real Finances
eXcenda combines net worth, expenses, simulations, and macro context into a single app so you can move from theory to action.
Frequently Asked Questions
Both track indices passively. ETFs trade intraday on exchanges with lower TERs. Index funds allow automatic fractional recurring transfers. Either is a solid choice.
You can start with the price of a single share (often €10 to €100). Many modern brokers offer fractional shares starting at just €1.
ETFs are strictly regulated entities with segregated assets. Issuer bankruptcy does not affect your ownership of underlying shares. However, market fluctuation risk remains.