Choosing an account size you can actually trade
The right size is not the biggest one you can afford. It is the one where your normal stop loss fits inside the daily limit without rounding the position down to nothing.
Updated 20 September 2026
Start from the stop, not from the balance
Work backwards. Take the stop distance you normally use on the instrument you actually trade, decide the percentage you are willing to lose on one trade, and see what position size that produces. If the result falls below the minimum lot your platform allows, the account is too small for your style.
The position size calculator under Tools does this arithmetic for forex and CFDs, including gold and the index CFDs most prop traders use.
The daily limit sets how many attempts you get
A 3 per cent daily limit with 1 per cent risk per trade means three losing trades ends your day. Not your account, your day. At half a per cent it is six. That number, not the account balance, determines whether a strategy has room to be wrong in a normal session.
269 of the plans here use a 3 per cent daily limit, so this is the common case rather than the strict one.
Bigger accounts magnify the same mistake
Doubling the account does not double skill. It doubles the money attached to the same decisions. If a 1 per cent loss feels survivable on 50,000 dollars and unbearable on 200,000, the honest answer is that the position size, not the account, was always the problem.
There is a cost argument too. The median 100,000 dollar plan here is $522 and the most expensive is $4,249. Paying at the top of that range for a size you cannot trade calmly is the most expensive way to learn about the daily limit.