Viewing profile — brownegg

Correlations will tend towards 1 when using a large-enough time frame. On a microstructure scale, correlations go haywire in liquidity distress.

Which part of "buy and hold" includes "sell when it goes down"?

You're conflating two things (in my mind). L2 is very useful to people like me. If it's useful to you, you should be able to handle spoofing. The "average investor" doesn't need L2…

They don't get unnecessary volatility unless they're paying attention to the order book all the time. Realized equity volatility is MUCH MUCH MUCH lower in the era of HFT. Yes, "fl…

Your question is exactly correct. As long as they are real orders, with real risk of being executed, there should be nothing at all wrong with this behavior. If people are so stupi…

A senior/experienced person offering potentially-qualitatively-better "stuff" in the realm of something like code isn't the point. I'm sure there are exceptions, but in general no …

If we throw out, even if momentarily, that there's more to success in the markets than pure luck, then people who have succeeded have done so in a very pure way: you can only make …

Soros is definitely weird at times, and he is almost always too-certain. But your negative characterization of "billionaire investor" is a disservice to you and him. Rather than le…

You are certainly right that it was fun. But basically the hypergrowth of the '90s was borrowed from the future. All policy was good if GDP grew. Greenspan noodled on the problem--…

Why do you need to prevent 40MB downloads?

Does it not resonate? That line hit me like a ton of bricks. I'm almost an OO fanboy, but that is a _very_ good point.

If it's $862m, last I checked, it will take them about 30 hours to bring in the necessary revenue--if they want to pay out of profits (I'm totally guessing here, what are real net …

> I expected to see (1995) tagged to the end of this article. +1. The "making hundreds of millions" part made me laugh too. Bet that's news to the index desks.

I can't upvote this hard enough. OP is right in my mind, but.... I'm straight (and divorced), and we got married for many of the same reasons that LGBT folks want to--it makes sens…

All true. Also been true for ~7 years, so maybe it doesn't matter much.

Agree re: the rate limiter--totally irrelevant in the case of OP.

As the great Jules Winnfield ( http://en.wikipedia.org/wiki/Pulp_Fiction ) once said, "Well, allow me to retort." > I think the author would have been better suited without mention…

It is so, so infrequently that I get to say this about something HFT-related on the internet: fucking awesome, dude. There is actual information here that is of use and doesn't mis…

The latter is somewhat true, and probably unavoidable at this point. "The cat is out of the bag", so to speak--markets can't just go back. The problem is that the incentives are so…

I'm in the "professional automated trading" space. This is by far the most common vendor mistake. "We make trading simple!" is pretty much a surefire way to mediocrity at best. "We…

HN posts sometimes cover things like this, but almost always with a very startup-focused lens (which is of course perfectly appropriate). I subscribe to hbr.org and enjoy the blog …

Can't answer for OP, but for this new user, a Chrome app would be dandy.

These are standard "tricks" in the high-frequency / low-latency trading space.

Congrats on your success--you have the best kind of problem. 1. You have a working product--do not do a full rewrite. Rewriting has so many pitfalls in the best of cases, and if it…

The children here are potentially misinterpreting this. I don't see this comment as being judgmental. The fact that Apple has accomplished this does NOT mean that the poster is say…