I am trading ES futures options with the Tradestation futures+ platform , which is required to trade futures option with TS, and use OptionVue for risk analysis. To use the futures plus platform at no cost, live data and market depth included, you need to open and fund a futures account and then open a separate futures options sub-account through an internal transfer of funds. No need to apply for SPAN margin; it automatically apllies to ES futures options. With the help the TS staff easyily done. Commisions are 1.20 USD per trade plus 55 cents for exchange and 1 cent for NFA fees, totalling 1.76 USD. Not the cheapest but quite good as compared to many other brokers. As yet, commissions were exactly the same for each single trade, independent of position size, number of legs or whether you add or not liquidity to the market.
To give you an idea for the relation of SPAN margin to RegT margin. With a 30k account, I have 5 overlapping Road Trip Trades open, each of them a 6 lot, plus some hedges with teeny puts. My current margin fluctuates between 10k and 15k which is about 5 times less than RegT margin (taking as such as an approximation the maximal possible loss on the left side of the expiration graph). To be on the safe side, your margin requirements should preferentially stay below half of your capital; increases in volatility and large moves against your positions may increase margin substantially. This means that if you do not trade the RTT every 2 weeks but only once a month (the 3rd Friday expirations), there should be not a problem to trade a 4-lot and have 3 overlaping trades without exceeding 4k of margin requirement and be well off with a 10 k account. A realistic expectation for returns might be 200 USD for a 4 lot, which would be equivalent to 2% per month over capital and close to 5% per month over margin.
Posted by Peter M Klatt