Quote from luh3417:
To throw in some more data, I've seen this behavior at all the exchanges, not just the maligned PHLX and AMEX. Namely, just to confirm what may be obvious to you seasoned traders, I often set the new best bid or ask with a limit order for a particular option contract, and several interesting events follow. 1. shortly (not immediately) thereafter, generally a couple few hundred other bids will show up on top of me 2. some of those people appear to get filled before me. 3. I feel like I'm the last one filled, only when the underlying has eventually moved and we're about to move to the next nickel/dime bid/ask. In other words, its not "first in, first out", and I guess the market makers have no rule governing this, or if they do, its not enforced. It seems like its more like, "first in, last out". That was why I originally thought it was because I was a tiny pissant trader with one or two lots. I still think this may contribute to the way I'm treated, but it could simply be part of the larger issue that I have no pull and the market makers have more important clients to make happy. I'm watching it happen to me even as I type. I want to sell my 2 NVDA APR06 55 calls, market is 55/65, I lob in an ask of 60, I see my 2 contracts there as the spread changes to 55/65, then 5 or 10 seconds later we see 102 contracts, then down to 74, while I still sit there with my dick in my hand, like an extra on a porno set, then the bid ask moves to 50/60, so I resubmit at 55, for a few moments I'm the only guy at 55, then 100 more pile on, then many more, then the number decreases, as everyone but me gets filled. OK now we move to 45/55 as I chase this garbage down the drain and wonder why I play against a stacked deck. The city has a million stories, but mine is playing out on CBOE this time. I did make some money on those BLS calls on Tuesday though...