Thanks for all your replies, specially Robert Morse.
Just to clarify, my capital is barely 7 figures so I don't qualify for prime accounts. My trading strategy is just very commission heavy.
I was interested in experiences from people who have used TOS. I've read that some people have been...
Couldn't find a relevant thread so starting a new thread. I currently use IB and trade about 10,000-15,000 option contracts a month. Bulk of my trading is 5 SPX option spreads at a time for which I get charged $11.38 / $12.38 depending on options price. I think it gets little cheaper late in the...
Be very careful scalping time premiums of high priced stocks with interactive brokers if they are close to in-the-money. They will look at what will happen if you got exercised those options and automatically close the options if you do not have enough margin to hold the long/short position. It...