I think the lot size of trading depends on your money and also on your account type ....
if you have a micro account with the price of 100 dollars .... then it's good to use many sizes 0.01 to 0.03
depending on the trading. and market movements .... but if you use a standard account and you have more than 500 dollars ...
then you can use 0.04 to 0.06 lot sizes depending on the movement of the market and the market ....
but that depends on strategy and everything. to determine which lot size is most appropriate ....
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