A surprising fact to begin with
Why consider Amazon for a 100 euro investment
The historical value of the title
– 10-Year Growth: Since 2012, Amazon’s share price has grown by more than 2,000%[^1].
– Market Leadership: e-commerce, cloud computing (AWS), and continuous innovation.
The convenience of fractional shares
– Thanks to brokers like Robinhood or Trade Republic , you can buy “pieces” of shares, breaking down the barrier to entry of expensive stocks.
– With 100 euros, you buy about 0.1 Amazon shares (at a price of ~3,000 € per share).
How to buy fractions of Amazon shares with 100 euros
Broker Choice
Operational steps
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Registration : Create an account, verify your identity (KYC).
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Deposit : Transfer €100 from your bank account or card.
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Symbol Search : Search for “AMZN” on the platform.
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Fractional purchase : select the amount (€100) instead of the number of shares.
Costs and commissions compared
Summary table
Cost item | Trade Republic | eToro | DEGIRO |
---|---|---|---|
Purchase Commission | 0 € | 0,75% spread | €0.50 + €0.0003 per share |
Sales Commission | 0 € | 0,75% spread | €0.50 + €0.0003 per share |
Securities custody | 0 € | 0 € | 0 € |
Currency Exchange | 0,20% | 0,5% | 0,25% |
Strategies to Maximize a Small-Scale Investment
Average cost in Euro
Divide the €100 into monthly installments of €20 to reduce the impact of volatility (Dollar-Cost Averaging).
“Light” diversification
– Tech ETFs: allocate 20% (€20) to an ETF on the Nasdaq[^2].
– Alternative Growth Stocks: €10 on stocks with similar growth potential.
Expert comment
“Investing small amounts regularly is the key to accumulating capital over time, especially in highly volatile sectors such as technology.”
— Prof. Marco Bianchi, Professor of Corporate Finance, University of Milan

Risk Analysis and Mitigation
Main risks
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High volatility : Tech stocks can drop as much as 10–15% in a single week.
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Exchange rate risk : euro/dollar fluctuation.
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Concentration : Betting everything on a single stock increases specific risk.
How to protect yourself
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Stop-loss : Set automatic sell limits at 10% loss.
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Currency Hedging : Use multicurrency accounts or currency ETFs.
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Maximum allocation : Do not exceed 10% of your overall portfolio in Amazon.
Monitoring and periodic review
Key indicators
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Current P/E Ratio (Price/Earnings).
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AWS Operating Margin and Growth Rate.
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Quarterly revenue and earnings trends .
Free Tools
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Broker App with Personalized Alerts

Expert advice and best practices
“With just €100, you can bet on fractions of large companies. It’s an ideal training ground for learning without excessive risks.”
— Alessandra Rossi, portfolio manager, Banca Mediolanum
Checklist for the investor from 0 to 100 €
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Define investment objective (e.g. accumulation, growth).
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Choose brokers with fractions and reduced costs.
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Open account and deposit funds.
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Set up recurring purchasing plans.
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Monitor quarterly and rebalance.
Frequently Asked Questions
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Can I invest €100 in Amazon even without an Italian bank account?
Yes, some brokers accept prepaid cards or SEPA transfers from foreign accounts. -
What is the minimum fraction of a share that can be purchased?
It depends on the broker, but often it starts at 0.0001 shares. -
Is the investment of €100 in Amazon taxed?
Profits are subject to capital gains tax (26% in Italy). -
Should you buy stocks or ETFs on Amazon?
Stocks offer direct returns, ETFs diversify but have management costs. -
How are exchange fees calculated?
A variable percentage (0.2–0.5%) is applied to the dollar equivalent. -
Can I sell my fractional share at any time?
Yes, but there may be a slight delay in settlement in the case of fractional shares. -
Are there any regulatory limits for small amounts?
No specific limits, as long as you meet KYC requirements. -
Is dividend reinvestment automatic?
Amazon does not pay out dividends; everything is reinvested in the company. -
Is it better to buy in one go or with DCA?
DCA reduces the impact of fluctuations, but a one-time purchase captures any rapid increases. -
How do I recover capital losses in the event of a loss?
You can offset capital losses and capital gains in the same tax year.