As for option orders, I have experienced problems with BEST ignoring exchanges that have auto-ex turned off, but overall its pretty robust. I usually get sent to ise, cboem phlx, or pse if any of them have auto-ex on. I don't think any problems with BEST are a result of any cost-savings attempt to IB management. [/B]
wow, how many options do you trade??
if you are an active option trader then you will find that you only have access to about 40% of all customer orders booked in the marketplace. The other 60% of the orders have the auto-ex off. The AMEX and PHLX allow NO access to their customer order book. The CBOE allows access only on a portion of their options (ABP). The PSE and ISE are pretty good but there are some cases where their auto-ex systems are turned off.
Having said this, let's say you are long an option and you are trying to sell it and the current market is $3.20 bid (AMEX) $3.30 ask (CBOE & PSE). If you attempt to sell it at $3.20 via BEST then your order would not go to the AMEX (because IB looks for auto executions only - for obvious reasons) but would go to the ISE where it would NOT be filled. The AMEX would then see that the market is locked (NBB=NBO) and would fill the $3.20 bid themselves then the next bid may be $3.10 bid (CBOE) and if there is no auto then lowering your offer to $3.10 would not get you a fill as the order would once again be sent to the ISE (where they DON'T honor the NBBO) and so on and so on!! By sending the order directly to the AMEX or CBOE then at least you would have a chance at a fill.
Also, if you simply want to enter a limit order via BEST, then your order would be routed to the ISE. It doesn't matter if the particualr option actually trades much on the ISE, it is still sent there. Because there is NO client priority accross all option exchanges then you would be missing out on several trades. ie. you want to sell some calls at $4.10 and the NBBO is $3.70 bid $4.10 ask. When you enter your to sell at $4.10 via BEST, then your order is sent to the ISE. Because these options trade mainly on the CBOE/PHLX then your option could trade 10 times without you getting a fill despite being the first client offering. To actually sell the option you may have to go down to $3.70! YOU NEED the option of deciding where to send your limit orders!! In fact, often it is wise to offer on all five Exchanges ensuring that if it trades at $4.10 then you will get the fill (risking being double filled, although unlikely).
and there are more reasons......................
BTW the PSE has introduced a cancellation fee of $2.00 per order cancellation if the number of cancellations exceeds the number of executions for a member in a given month. And I was told that cost IS an issue for not allowing the direct access.
BEST will only be BEST when:
1) there are NO trade throughs in either options or equities
2) all markets are automatically executable (locked/crossed included)
3) there are no quote errors in the TWS (have you ever used BEST when quotes are incorrect??)
4) there is client priority accross all Exchanges for equity and option products
which will be NEVER!!
BEST is pretty good most of the time but sophisticated traders need the option of sending their orders directly to ECN's/Exchanges as well!
I have faith in management to get it right. Lets hope I'm right!