Quote from Cache Landing:
C'mon OC. Daytrading options can be very profitable, but probably not how the OP is trying to do it.
To the OP I would say not to daytrade options until you've got a bunch more experience. I traded options for about a decade before I started daytrading them. Now I make much more daytrading them than I ever did swing trading them. The strategy is much different and you really have to know what you're doing. There are only a handful of options worth daytrading. Conversely, I would suggest that you practice on e-minis for the next 2 years or so. ES or NQ are my favorite next to NDX and SPX options.
I strongly suggest daytrading NQ first, and then after a couple years if you're doing well, make the transition into NDX options. If you can't make money off NQ, then you'll fail miserably at NDX options.
Now now you know my opinion on daytrading options, especially index options where the spreads are even worse. Just because you can do something does not necessarily make it the best thing to do. To have an NDX options move enough to make the profit worthwhile you have to get a nice move in the NDX index. You can caputre way more of that move using NQ futures which will move almost 1:1 with the NDX move (i.e. if NDX moves 8 points you can almost get 8 points in the NQ as well, not exactly but close) than ATM NDX options with a delta of .60 at best plus the .20 b/a spread.
It is possible to daytrade options but they are not built for daytrading like stocks and futures.