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that would kind of defeat the purpose, don't you think? if you're going to try overloading competition doing this type of thing, i'd think you'd be smart enough to write something preventing being overloaded yourself. [B] if you were aware something was up. of course, cat's out of the bag now.

5k quotes a second to test for ping times on multiple issues market wide? don't think so.

hehe, yea, i'm sure they're doing everything from a single thread on one machine. given the sophistication and regularity of the attack, i would put money on them having boxes dedicated to doing this. the advantage lies in the fact that they compete in the subsecond arena, and if they can...

maybe i misunderstood you, but i thought you were talking about new traders making it and the best model for that (brights, etc). from that context, i don't see how an edge is a given. to answer your question, i didn't have a life... i worked nights about 6-8 hrs and then came home and did...

for an experienced trader, agreed. for a newbie, though, the biggest edge is actually having an edge, and the second biggest edge (assuming you have the first) is low operating costs. i started with $2500, a low rate (.0035), and most important, an edge that i had spent more than a year...

heech, 5k quotes on a single issue per second? you need to reread the article. there's no mean reversion mm strat in existence that has a legitmate reason for doing that. only reason for doing that is if they're trying to outfox competition by doing what i described above. it's basically the...

they're flooding symbols with ridiculous amounts of quotes knowing their competitors will have to process them, giving them an information and speed advantage because they won't be processing them. they shouldn't be at it for long though. exchanges really can't support that type of abuse and...

bob, it doesn't make sense for a middle-class family. it starts making sense, if you're a young successful trader... ...and it starts making a lot of sense if you're a dual national already somewhere else.

volatility drastically changed from 08 -09. if your strategy is in any way vola dependent (most strategies are), your 09 results will have reflected that change.

you need to create and log timestamps on all outgoing and incoming messages.

for equities: vtrader, swift, wts futures: vtrader if anyone knows of any others i'd be interested as well. specifically xetra/euronext.

my bad, looks like it was brownegg.

i laughed at bytetimes (now edited) post about if you 'get' c++ everything else sucks. that was my first poison and admit feeling the above when looking at other languages. fwiw i use c/c++, but really like to keep it as low level as possible, so end up doing most things in c but using the...

yea, i'm sure he'll get right on that.

rufus, do you know what kind of volume they were moving getting those numbers? my margins have definitely taken similar hits, but have been able to scale well to maintain some small growth in profitability. i can definitely attest to it being quite crowded now.

it depends on where you're located, but from the numbers you're quoting sounds like west coast, and even then sounds slow. more than likely your broker is introducing a good percentage of that delay as well. advice: if your strategies are time sensitive, then solve this problem by getting...

i'd have to agree with rufus. i'm a one man shop and have come up and grown nicely in the amm/arb space and i can tell you i'm definitely not spending 500k/mo in overhead, and not trading 5min bars at IB. those extremes are a bit hyperbolic. strong comp sci skills are a requirement though...

obviously. but, if you happen to be a non-productive socialist professor who has to pull out his tampon to dry his tears at the sight of inequality... well then, for certain: coach is definitely for you. and that my friend was the moral of my story... as such, it is infallible, and cannot...

here's the reasons i fly first: 1) i like to get on the plane first. why? a) so i can put my bags on the plane without having to worry about a plane full of mooks filling up every single overhead space and then being forced to ship my bag or cram it under the seat in front and kill my...

50 trades a day isn't high frequency. anyway, if you're worried about it, don't trade just that one strategy.