Quote from noregrets:
Thanks, AZ. I had not yet considered trading AAPL tomorrow; what is your price/vol outlook, and what do you like about that particular spread?
I personally try to focus on trading options where the underlying is at least $100, since it reduces the relative commissions especially if you do not hold the position very long, although I do trade those on lower-priced stocks occasionally. E.g., this summer I traded VXX options quite a bit but the commissions were painful. The fact that most of my journal trades so far have been in ES is a bit of an anomaly. I have been spending much of my time building new sheets the last few days, and that has been combined with my fairly bearish outlook of late which (rightly or wrongly) has made me more inclined to focus on trading the index for now since correlation should pick up if we start heading down anyway.
As far as fills, I use the same tactic of "walking out" from the midpoint. I will often put in my first limit order at or a penny off mid, then if that doesn't get filled I will start adding a penny or so at a time until I get filled. If it is a slow market then I try to be very patient to get a good fill. I use resting limit orders often for exits, or on entry if I am willing to do the position but only at a better price. Especially on the leveraged flies that I trade sometimes, the mid prices can fluctuate quite a bit even over fairly short time periods so if I'm not in a hurry I will usually hold out for a better price. Depending on the instrument, I have a good idea going in of how much I will likely have to give up off the midpoint to get the fill.
+1 on reading atticus' old posts. I learned more from reading his journals than anything else on ET to date, specifically the Pitchfork, "Ship It" and "Single-name Delta Book" journals.
I would imagine that others, many of whom have much more trading experience than myself, may want to chime in here as well.