Originally posted by nitro
Okay,
I got everything else in your post, but one thing is still a mystery.
"...Then, as a marketing gimmick, they added an additional way of processing orders, and have marketed it as "Direct+". If an order is flagged for direct+, and is 1099 shares or less, and is immediately executable, then it interacts directly with the opposing order in the book, and does not get sent to specialist. "
From everything you have said, the _ONLY_ difference between using Direct+ and having an order routed to SuperDOT is that if routed to SuperDOT, the specialist (or his clerk) has to look at it, make some decisions, like match the order, move his quote up/down, etc, whereas if I route to NX, all I am doing is bypassing this _TIMELY_ decision process. So, Direct+ isn't used to get faster fills if I happen to match something in the "book," because it is done electronically. This if my analysis is correct, is more than a "marketing gimmick" and a real advantage. Of course, I have not analysed what happens when there is no order matching, and then I loose some time (2.5 seconds) extra getting routed to SuperDOT, etc, which means that had I been routed _DIRECTLY_ to SuperDOT, my order was not dancing around when it could have executed by the specialist 2.5 seconds ago, actually making it SLOWER...???
nitro
Sort of. The main thing wrong with what you wrote above is was "
Direct+ isn't used to get faster fills if I happen to match something in the "book," because it is done electronically.". The matching only happens when the specialist says it's ok to let it happen -- i.e., he declines his opportunity to price improve. See below...
I didn't mean to say that "direct+" is entirely a marketing gimmick, because there IS a real advantage -- speed and certainty.
Direct+ tends to actually GET you the fills, AND get them more quickly.
Without it, you often won't get the fills: If the specialist sees a whole bunch of orders attempting to jump on an offer, he will often take it for himself (filling it at a slightly higher price), and leave all the other orders on the bid, then sell it back to them a minute or two later at a higher price.
You have to understand that the specialist doesn't have an incentive to get your orders filled quickly. In fact, just the opposite is true. I think the number is 90 seconds. He has 90 seconds to decide what to do with your order (and another 90 seconds once you put in to cancel). For example:
A stock is 20.10/20.20 with 100x100 showing.
Trader #1 offers 1000 shares at 20.15. The specialist sees this, and senses a good opportunity to see how many buyers he has out there. So he lets the order show. (Trader #1's order doesn't show instantly or automatically until the specialist allows it. By default, it's held up for a few moments to allow the specialist to decide to price improve it, or fill it, etc..) Now the bid/offer is 20.10/20.15 with 100x1000 showing.
At that time, you decide to buy. So he sends an order to buy 1000 @ 20.15, expecting to take out the offer.
At the same time, 4 more traders do the same thing.
The specialist sees this flock of orders coming in, so he senses that the buyers were more eager than he had previously thought.
Now the specialist isn't allowed to trade in front of customer order flow. Which means, since there are 5 orders (yours plus 4 more) trying to buy 1000 shares @ 20.15, he cannot buy the 1000 shares in front of you. But he has another choice. He can buy it at 20.16. So that's what he does.
The specialist fills Trader #1's offer a penny better -- thus, that trader received price improvement -- he was trying to sell at 20.15, but actually got filled at 20.16. In receiving this price improvement, he realizes he was probably selling too low (which will become apparrent as he sees the market move up over the next several seconds.
Meanwhile, the rest of the world is still waiting to see their order to show up, or get their fill. Finally they see the following:
1000 shares trade at 20.16. ("Crap!", they say.)
100 shares trade at 20.20.
Then the quote changes, and the market is now something like this: 20.15/20.25 with 5000x100 showing.
The specialist bought the 20.15 offer a penny higher, and the 100 shares at 20, just for good measure. Now the quote shows 5000 bid for -- the 5 orders for 1000 shares each, and the specialist is offering 100 shares at .25 now. Maybe somebody will panic now (perhaps a short-seller, seeing the strong buying interest), and jump on the 100 -- or better yet (for the spec.), several somebodies will jump on it, giving him a chance to sell his 1100 shares nearly a dime higher.
Anyway, I don't think routing to NX slows anything down. The document says that fills usually come in an average of 2.5 seconds. But that doesn't mean a 2.5 second delay for your order. I mean really, it's not like it's a complex process -- assuming you're buying, if your bid >= inside offer and offer is firm (not already filled -- waiting for specialist to move quote), give fill. Else process order normally.