Quote from rwk:
Almost ... It's $5k per contract. But that can change with little notice. Also, your broker will get alarmed if you put a large portion of your account value at risk. I would not recommend going much over 20-25%. If you get an adverse move, you will have to come up with more cash FAST, or your broker will dump your position at a big loss. Leverage is why people say it is so risky to trade futures and options.
Intraday can be $500 or lower.
