Wouldn't it be nice if every book smart guy could figure out the market? I'll continue with the capital available. I personally wouldn't try anything until you've backtested and ran it across your personal simulations. There are guys who make a million + a year to do that, what do you offer?
Margin amount is not basis. The example has at least 1 glaring hole... Loss can exceed the initial margin amount, even by multiples of, day-trade or not does not matter. Furthermore, what of the trader who does not have access to or does not employ day-trade margin amounts? Would that trader have a different "return" entering and exiting the exact same trade, at the exact same "prices"? ROC requires the account value. Using a correct leverage calculation, which considers the account value, can be used to normalize a risk-adjusted "return", applicable for all margin values. Barring that, the contract value is the more accurate and appropriate variable.
Yes it is possible.. You can make a $1000 a week trading 1 contract with the futures if you know what you are doing..