Market gains do not become financial successes until they exceed the associated costs for the contracts.
Since daytraders operate at very short notice, the profits are always limited.
A precise calculation is necessary to determine the right moments to close a position.
But that's not all.
Daytraders can never be sure that the market will always develop according to their predictions.
They can always be wrong.
In that case, speculators divest their financial products potentially at a financial loss.
If they quit too late, the capital employed might even go up in smoke within a very short period of time.
So daytraders not only have to absorb costs of the profitable transactions with their few gains, but also of the losses along with their costs, like trading fees.
Only after that, the own balance will be higher than the capital employed.
But only very few traders accomplish that.