Robo-advisors promise professional-grade portfolio management at a fraction of the cost of a traditional financial adviser. Traditional brokers give you full control. Neither is universally better — the right choice depends entirely on your goals, knowledge, and how involved you want to be.
How robo-advisors work
A robo-advisor is an automated platform that builds and manages a diversified investment portfolio on your behalf. You answer questions about your risk tolerance, time horizon, and financial goals. The algorithm constructs a portfolio (typically of ETFs) matching your profile. Dividends are automatically reinvested. The portfolio is rebalanced periodically to maintain your target allocation. You pay an annual management fee (typically 0.25%–0.75% of assets) for this service.
Top EU robo-advisors: Scalable Capital, Nutmeg (UK), Quirion (Germany), Indexa Capital (Spain).
How traditional brokers differ
With a traditional self-directed broker (XTB, DEGIRO, eToro), you choose your own investments, execute your own trades, and manage your own portfolio. You pay a trading commission (often €0–€2) per trade, plus the ETF's TER (0.07%–0.30%/year). Total ongoing cost for a self-directed investor using cheap ETFs: often 0.10%–0.35%/year.
A robo-advisor typically costs 0.25%–0.75% in platform fees on top of the ETF costs, putting total ongoing cost at 0.35%–1.00%/year.
When to choose a robo-advisor
Robo-advisors suit: complete beginners who don't want to research investments, busy professionals who want investing to be fully automated, those who lack the discipline to maintain a DCA strategy manually, and investors with €50,000+ where the percentage fee is justified by the time savings.
When to choose a self-directed broker
Self-directed brokers suit: investors willing to spend a few hours learning the basics, those who want to minimise fees over the long term, active investors who want to choose their own stocks and ETFs, and those who want to trade in multiple asset classes (crypto, forex, individual stocks) alongside ETFs.
The cost difference over 20 years
Consider €10,000 invested for 20 years at 7% annual return. Self-directed (0.30% total cost): €37,200. Robo-advisor (0.75% total cost): €33,400. The €3,800 difference is purely fee drag — the robo-advisor investor paid €3,800 extra for the service of not having to press a button once a month.