Quote from TraDaToR:
I'm talking about non marketable limit orders.
Speaking of marketable orders, you will always get filled removing sizes. If the size goes away, it's simply that your order was submitted after the size was cancelled...
ok, just to dispel a big myth here that has been widely spread recently, a lot of which seem to be coming from that Themis guy on cnbc (jury's still out whether he's a complete moron or just a propagandist).... these aren't supercomputers colo'd at the exchanges, for the most part, they're regular old dell's, hp's and custom servers. for the most part, they're cheap, and the rack space is too. it doesn't take that much to get something setup, all the info thrown around that it costs gazillions of dollars and it's unfair competition is complete bs. the bar to entry is low. if people actually took the time to check facts vs blindly listening to idiots on tv... then i'd probably have a lot more competition, so probably better they don't.Quote from tripledtrader:
Hi propseeker, I agree with your points, and there's definitely alternative reasons for sub-penny prints including dark pools. The point I was trying to make, was if a market order is flashed to the exchange, and the broker has access to this information via the location of their super computers being on the exchange, then those super computers have the capability to take the other side of that market order. My problem is not with my own broker (my broker is GS btw), as my order is placed and displayed in the NBBO. My problem lies with the market order trying to take my bid or offer. If the market order on the other side is flashed, then those super computers have the ability to step in front of me. If the order wasn't flashed, then the market order should give me my fill.
NASD and BATS do not allow sub-penny quoting as per SEC Rule 612, but they are not quoting anything. The brokerage super computers are simply taking the other side of the flashed market order, and printing it at .0001 or .9999 in front of the NBBO.
Any internal sub-pennying from my own broker would definitely still exist if flash trading is banned. But again, my problem isn't with my own broker, my problem is with the contra broker.
Quote from propseeker:
ok, just to dispel a big myth here that has been widely spread recently, a lot of which seem to be coming from that Themis guy on cnbc (jury's still out whether he's a complete moron or just a propagandist).... these aren't supercomputers colo'd at the exchanges, for the most part, they're regular old dell's, hp's and custom servers. for the most part, they're cheap, and the rack space is too. it doesn't take that much to get something setup, all the info thrown around that it costs gazillions of dollars and it's unfair competition is complete bs. the bar to entry is low. if people actually took the time to check facts vs blindly listening to idiots on tv... then i'd probably have a lot more competition, so probably better they don't.
so, 'broker's' with 'supercomputers' are not doing this to you because it could literally be anyone anywhere on some unknown pool. no one is stepping in front of your order and taking the flash quote that should've gone to you because if you were sitting on the right exchange you would've been hit immediately. flash orders basically lock the mkt at different exchanges till they find some liquidity that will take them. that's it. there's nothing more to them. they were an excellent example of what some well-directed disinformation campaign can do for those who stand to benefit the most (in this case, the nyse and it's major liquidity provider:gs).
also, NO exchange allows sub-penny ORDERS. it has nothing to do with quotes. if that were the case, you could put in sub-penny nasdq hidden orders... but you can't. the flash orders are just pinging the gazillions of dark books, some of which are quoting in sub-pennys, and if they're live when the flash comes through then they get removed, and THAT's why you see what you're seeing.
Quote from tripledtrader:
Propseeker,
So you're trying to say that no-one is intentionally stepping in front of my bid or offer? That any prints i see .0001 in front of my order are purely coincidental?
Quote from propseeker:
no, i'm trying to say that the people parked in front of your order have nothing to do with flash orders... which is your contention. my contention is not that it's going on, but that this it's going on in dark pools. they've been making sub-penny markets for some time now. also, it's more than likely, that most exchange routed orders don't even get routed to these pools. think about it... how many .001 fills do you get?