Quote from IBsoft:
monstercat,
It is a bit more complicated than that. IB will only make a commission if it manages to get your order executed. Even the flow payments and collections only take place when your order gets executed. Hence, it is in our best interest to get your order filled.
I have looked at some stats. For competitive reasons I can't get too much into detail, but consider the following two facts:
- EWZ National Volume Distribution is 23% at ISE and 38% at CBOE.
- When one posts a non-marketable order that betters the market by a tick at CBOE and ISE, he is more likely to get a fill at CBOE. (I know that that is not what you experienced, but looking at all the cases together that is what we find).
I can't explain why the counter-party of your trade liked your order when it was posted at ISE and did not like the same order when it was posted at CBOE.
I am now dropping out of the discussion.
IBsoft
I will comment on my personal empirical experiences with getting options orders to fill between Bid and Ask:
The only times I have ever gotten ANY orders filled between Bid/Ask (when I became Bid or Ask) was on ISE, and occasionally BOX. In fact, my experience has been that if your order is placed "splitting the middle" at CBOE and it fills, it is proof positive that the Bid/Ask moved such that you were effectively buying at Ask, or selling at Bid. At ISE, have many times seen my order filled immediately or near immediately when splitting Bid/Ask and the Bid/Ask does not immediately move against me when this happens. BOX on occasions will result in price improvements, but you usually have to wait a bit for those orders to execute.
Even though CBOE does a lot of volume, it has not been my experience that any of it is off the established Bid/Ask before your order goes in. You will do better to get size filled when hitting Bid or Ask at CBOE perhaps due to the depth, but there is not a snowball's chance in hell of any price improvement there.
If your order ends up at PHLX or AMEX or ARCA, it's not likely to get filled very quickly in any case.
In the past ( 2 or 3 years back ) I noticed that IB always routed to ISE by default whenever you had a LMT order which wasn't immediately marketable. Now, it seems that you are sent to CBOE or PHLX instead of ISE almost always in this kind of situation.
I believe this is the source of frustration with the original poster. There is no way to instruct IB to "prefer ISE" rather than to "prefer CBOE" in such a "tie situation". This leaves you with the only alternative being forcing it to ISE and paying a lot more in commission as a result. Or, you place it as "smart routing" and then have to cancel it and replace it, thereby generating a cancel fee.
So, the question comes up - IB used to send stuff to ISE in the past in this situation, now it goes to CBOE or PHLX which seems inferior to the OP, myself and some others in this scenario. So, why would things change like this unless there was some positive $ benefit to IB? I think the true answer is that IB believes it is a "tie situation" and therefore they can pocket the extra cash without hurting the customer, but in fact, the customer is getting a lot less chance of being filled in a favorable manner with the current scheme of smart routing.
BTW, for a future enhancement, I would really love to see the ability to prefer or avoid routes from the routing schemes in such tie situations. It would even be worth paying somewhat more than SMART, but obviously less than the "direct routing" price.