The strongest argument for a modest first deposit has nothing to do with markets. It's that you're testing a process — signup, verification, funding, your first position, and eventually a withdrawal — and that test should cost as little as possible.
Run the full loop starting from the minimum deposit. Deposit, wait, request a partial withdrawal, and see how smoothly it returns. A platform that handles a small withdrawal cleanly is one worth trusting with more.
Only after that full cycle does it make sense to think about increasing your amount, and even then gradually. A bigger deposit doesn't make a strategy work better — it just makes the same outcome larger in either direction.
Why the first deposit matters most
The first deposit sets the habit. An amount chosen because it feels comfortable tends to lead to calm decisions later; an amount chosen to feel like the maximum you can afford tends to lead to pressured ones.
A sensible starting point
Money you wouldn't need back within a year, in an amount whose loss would sting but not hurt seriously. That's a personal number only you can set.
Adding to it later
Topping up a balance you already understand beats starting large and learning the hard way.
Questions worth asking first
How do withdrawals work, and where do they go? What gets deducted, and by whom? Who do I contact if something looks off? A platform that answers all three clearly, in writing, is one behaving as it should.
Investing carries risk, including the possible loss of some or all of the capital you invest. The value of investments can fall as well as rise, and you may get back less than you put in. Do not invest money you cannot afford to lose.