2,995 karma · joined December 29, 2009
Can you explain this in more detail? How does the HFT know that someone is crossing the spread? How is the HFT able to transact with two market-crossing orders after the fact? What financial instrument is being traded in Chicago and NY?
If the book was presented as non-fiction "based on a true story" that's one thing, but If the b
The excerpt from the book is largely the story from a single point of view, I don't see a lot of corroborating quotes, zero footnotes, and the facts are too convenient to the narrative to be the whole of the story.
Pulling one paragraph:
> As it happened, at almost exactly the moment Carlin Financial entered Brad Katsuyama’s life, the U.S. stock market began to behave oddly. Before RBC acquired this supposed state-of-the-art electronic-trading firm, Katsuyama’s computers worked as he expected them to. Suddenly they didn’t. It used to be that when his trading screens showed 10,000 shares of Intel offered at $22 a share, it meant that he could buy 10,000 shares of Intel for $22 a share. He had only to push a button. By the spring of 2007, however, when he pushed the button to complete a trade, the offers would vanish. In his seven years as a trader, he had always been able to look at the screens on his desk and see the stock market. Now the market as it appeared on his screens was an illusion.
His trading problems coincide with changing to a new technology platform and he blames the market and not the new software? Did anyone else experience a severe degredation in their trading performance? Did Lewis even ask anyone else?
On what basis do you make that assertion? Just curious...
http://www.forbes.com/sites/kashmirhill/2012/02/16/how-targe...
Care to elaborate? Assuming the Walmart has their standard grocery section they will sell fresh fruits/vegetables, meat, dairy, eggs, grains and the like. It may not be the highest quality but it won't kill you.
I shop almost exclusively at Trader Joe's* and am not (to my knowledge at least) nutritionally deficient. I get fruits, vegetables, dairy, meats, eggs, bread/cereal, and the odd snack. What am I missing?
How? A driver-less truck pulls up to the front of a corner store. Then what? Someone still has to take the (correct) product from the truck, load it on a hand cart, take it into each shop and put it on the shelves. Normally this is the driver of the truck, but if you automate him away then every shop-keep need a guy hanging around to unload the auto-delivery trucks all day or take time away from serving customers to do it themselves.
That is not a clear net win to me. It is a physical manifestation of automated phone support. Cheaper to implement by the company but more time consuming and less useful for the users and less efficient overall...
Loads of fun.
Do you recall the actual circumstances? That shouldn't happen in the normal course of things...
To get back to where you started (changes not added to the index, since you are doing commit -a) you should do `git reset --mixed HEAD~` (or drop the --mixed argument as it's the default).
I see what they are trying to do, namely get you to cough up $20 more to buy things you 'may' need but not yet (or ever) to increase revenue but it just feels particularly scammy.
The difference between the $99 (or even $199) plywood special and even an entry-level solid-wood guitar (starting closer to $500) is much more than just aesthetic. There are obviously exceptions but as a rule, the playability difference is profound.
There is another increase in quality/playability as you get into the mid-range offerings. Fit and finish are just a little bit better, tolerances are tighter, materials are of higher quality.
> Maybe there isn't, but I know that 40 years from now when my kids inherit this guitar they will have something that has retained its value and will be treated like a keepsake instead of relegated to a landfill as "junk".
I cheated on this count by buying a guitar made in 1974, so my kids will get a 75 year old guitar.
http://tofspot.blogspot.com/2013/10/the-great-ptolemaic-smac...
There is also an FAA graph of GPS measurement accuracy[1] which I'm guessing is the source of various "accurate to 2.2m" claims I have seen.
[0]http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System#C...
[1]http://www.gps.gov/systems/gps/performance/accuracy/histogra...
This is the string:
A$ = "0123456789ABCDEF"
MID$ (
Tax-exempt entities are also not-for-profit but not all non-profit entities are tax-exempt (Political parties, professional organizations, the NFL,...).
But wait, you don't use blocking-IO, you poll the sockets to see if there is data available, right? Do you realize what you are polling? (hint, it is global and mutable)
Many more are played by the likes of Yo-Yo Ma, and principle instrumentalists of various symphonies.
Browsing this list[1] it would seem that many more instruments are in the hands of musicians than are in museums.
[0] http://www.washingtonpost.com/wp-dyn/content/article/2007/04...
[1] http://en.m.wikipedia.org/wiki/List_of_Stradivarius_instrume...