The disadvantage to both (as well as most other equity options) is that they don't begin to trade until 9:30AM (est)
So interesting thing I learned earlier this year, SPX actually begins trading @ 3:00AM EST. I had an SPX position in my IB account and also one in an Etrade account when I discovered this. I was able to exit the IB position when the market opened. I was not able to exit the Etrade position until the normal opening time. One thing that was odd though, I couldn't see the quotes displayed properly through IB. Might have been a fluke or maybe I need some special data feed to view that. Anyways, I digress. Have a good weekend all!
