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It's pretty silly to define "Middle-class" based on income. The difference between being middle-class and being rich is more about how much money you HAVE, not how much money you MAKE. 250k isn't crap. That's a family with both spouses working as tech industry professionals in California...

Sux to be him, but great for most of the rest of us, who don't get to be paid 65k a year for doing unskilled labor, because now we get to buy cheaper cars.

wow...I don't know anything about prop trading, but if what you say is true, there is no doubt in my mind that you'll be successful no matter what you do even if trading doesn't work out.

Back-testing equity options strategies using the closing B/A spread, just doesn't work as well as you'd tend to think. Some of the reasons are wide spreads, market microstructure differences in the equities and options market, and over-all poor data quality.

I've purchased several times through Blue Nile. Never had a bad experience. Most of what I've bought through them have been small diamonds and pearls though. If the diamond is big, you should probably go to a brick and mortar store (after reading up on how diamonds are rated on the web) so...

What would you consider to be a "large account" in this context?

Doesn't IB charge a fee for cancellations and modifications to options orders? I think that would be a problem for any automated system.

I think that one of the things that might be underlying the fundamental changes in the markets this past year is the quants themselves. The popular press likes to talk about all of the "volatility caused by hedgefunds", but most of the quant-based hedge funds are probably running mean-reversion...

I LOL'd. :D

It seems to me that viscosity would be more analogous to some sort of liquidity measure rather than a volatility measure such as ATR. What is the reasoning for taking volatility to be the analog of viscosity? Or is it intended as a proxy for liquidity since volatility and liquidity are related?

OK, I just updated TWS on my Vista 64 machine. The "annoyance" with the install, is that the shortcut points to the wrong place. You can change this manually, or just wait patiently for Windows to search for the correct path, and update it automatically the first time you click on the TWS...

there are some annoyances with getting it to install correctly. Unfortunately I don't remember what they are.

Just a guess, as I have no experience with pairs-trading, but the obvious thing to try is to trade the pair towards mean reversion on days your model predicts high correlation, and trade a break-out strategy on days the model predicts low correlation. Do a regression of the prices of one...

It might be your GUI updates. GDI+ is kind of slow. Your output looks like you are only updating the GUI once a second....but you should fish around your code and make sure that it isn't happening a whole lot more than that. It's easy to accidentally be updating the GUI with the same info...

Ask him if there are any books he recommends.

You can make it very fast to query the time series data with proper indexing, but my experience is that this can make updates extremely slow once the database gets very large. Using a relational database to store tick data isn't worth it. The relational database doesn't give you much in...

I experimented with some simple neural network models a few years back, using data series ranging from a few hundred to a few thousand observations. I computed the correlation between the out of sample predicted returns with the actual returns of the time series just like you. My recollection...

The problem with IT is that much of it is basically relatively low-skilled labor, little different than assembling a widget in a factory. We've just kind of grown accustomed to thinking of any kind of "computer work" as highly skilled labor, but that simply isn't true. Much of it is easy...

Who says a fly has to be neutral? It can be a directional strategy.

I'll add my vote for "heat related". Every time I've had this problem with a computer it had to do with over-heating.