I am starting out in options (still have to finish Mc Millan books, never placed an option trade). I have questions regarding order execution: if you bid on the inside+5cents with small size (10 contracts or less) is your order displayed and what are the odds of getting a fill? Same when offering. Basically can you succesfully and consistently bid/offer inside the spread? I was thinking about buying QQQ Oct 29 calls this afternoon when I came up with this question, after a look at the charts I think there is still some downside since NDX broke the 98 2bottom closing lows so I did nothing.